Answers
carbon monoxide: CO
water:H2O
salt:NaCl
copper: Cu
Related Questions
Which of the following elements have the same number of valence electrons?
I. Nitrogen (N)
II. Oxygen (O)
III. Fluorine (F)
IV. Sulfur (S)
V. Selenium (Se)
Answers
Explanation:
Going down the list that was provided, we can use the periodic table of elements to determine the valence electrons.
- Nitrogen has 5 valence electrons
- Oxygen has 6 valence electrons
- Fluorine has 7 valence electrons
- Sulfur has 6 valence electrons
- Selenium has 6 valence electrons
Since oxygen, sulfur, and selenium all have 6 valence electrons, then that is the correct answer.
What are some good reason the government should switch to metric
Answers
it is more efficient and realistic.
'During conversion to the metric system, U.S. companies are able simultaneously to streamline their operations, eliminate inefficiencies, and reduce their inventories.'
Answer: It is truly ideal for the government to switch to metric
Explanation: This is because it is what most of the U.S uses and is the language of medicine and science; and it is critical that we are able to communicate easily in science
Red water problems are due primary to?
a. Hardness
b. Hydrogen sulfide
c. Iron
d. Turbidity
Answers
The correct answer is c. Iron. Red water problems are primarily caused by the presence of iron in the water, which can cause discoloration and an unpleasant taste and odor.
Iron Red water problems are primarily due to the presence of iron in the water. When iron is oxidized, it forms insoluble reddish-brown particles that can cause staining and other issues. Hardness refers to the concentration of dissolved minerals like calcium and magnesium in water, while turbidity refers to the cloudiness or haziness of water caused by suspended particles. Hydrogen sulfide is a gas that can cause a rotten egg odor in water.
Learn more about water here:
brainly.com/question/12167508
#SPJ11
How many moles of xenon trioxide are present in 1. 69 grams of this compound.
Answers
Answer:
0.00944
Explanation:
Xenon mass number on the periodic table: 131.29
Oxygen mass number: 16.00
Add them to find the molar mass of xenon trioxide: 131.29+3(16) = 179.29g/mol
Convert this to moles
\(1.69g * \frac{mol}{179.29g} = 0.00944mol\)
ASAP PLEASE! Mostly just need the data and conclusion answers please!!!
Electromagnetic Spectrum Lab Report
Instructions: In this virtual lab, you will use a virtual spectrometer to analyze astronomical bodies in space. Record your hypothesis and spectrometric results in the lab report below. You will submit your completed report to your instructor.
Name and Title:
Include your name, instructor's name, date, and name of lab.
Objectives(s):
In your own words, what is the purpose of this lab?
Hypothesis:
In this section, please include the predictions you developed during your lab activity. These statements reflect your predicted outcomes for the experiment.
Procedure:
The materials and procedures are listed in your virtual lab. You do not need to repeat them here. However, you should note if you experienced any errors or other factors that might affect your outcome. Using your summary questions at the end of your virtual lab activity, please clearly define the dependent and independent variables of the experiment.
Data:
Record the elements present in each unknown astronomical object. Be sure to indicate “yes” or “no” for each element.
Hydrogen Helium Lithium Sodium Carbon Nitrogen
Moon One
Moon Two
Planet One
Planet Two
Conclusion:
Your conclusion will include a summary of the lab results and an interpretation of the results. Please answer all questions in complete sentences using your own words.
Using two to three sentences, summarize what you investigated and observed in this lab.
Astronomers use a wide variety of technology to explore space and the electromagnetic spectrum; why do you believe it is essential to use many types of equipment when studying space?
If carbon was the most common element found in the moons and planets, what element is missing that would make them similar to Earth? Explain why. (Hint: Think about the carbon cycle.)
We know that the electromagnetic spectrum uses wavelengths and frequencies to determine a lot about outer space. How does it help us find out the make-up of stars?
Why might it be useful to determine the elements that a planet or moon is made up of?
Answers
Answer: This lab's goal is to investigate the absorbance patterns created by recently discovered moons and planets.
The first moon consists of Lithium and carbon, the second moon consists of sodium and nitrogen. Moving onto the planets, the first planet consists of hydrogen and carbon, and lastly, the second planet is consistent with helium and carbon.
How to explain the lab report
The theory was right; there have been no flaws in the outcome. The astronomical item observed by the spectrometer is the independent variable. The spectrum of any astronomical object is the dependent variable.
Space consists of bodies with different types of the electromagnetic spectrum. This includes high-energy bodies emitting radiation in short wavelengths and extremely short wavelengths such as in UV spectrum, X rays, and gamma rays. Conversely, other bodies might be emitting radiations in the longer wavelengths such as Microwaves and Radio waves.
The element missing from the moons and the planets would be Oxygen. It is to be remembered that Oxygen forms the base of the sustenance of life forms on Earth and forms an indispensable part of the carbon cycle. In the absence of oxygen, these planets and moons remain lifeless.
Stars emit heat and light. Along with the heat and light, radiations are emitted by the star. These radiations travel outward from stars and work as the signature of the stars. By analyzing the radiations from the stars, scientists back on Earth could deduce the physical conditions in the heart of a star including its constitution, temperature, and surface conditions.
The knowledge of the constitution of the elements making up the moon or planet is necessary to ascertain the life-sustaining capability of the same.
Answer: This lab's goal is to investigate the absorbance patterns created by recently discovered moons and planets.
The first moon consists of Lithium and carbon, the second moon consists of sodium and nitrogen. Moving onto the planets, the first planet consists of hydrogen and carbon, and lastly, the second planet is consistent with helium and carbon.
How to explain the lab report
The theory was right; there have been no flaws in the outcome. The astronomical item observed by the spectrometer is the independent variable. The spectrum of any astronomical object is the dependent variable.
Space consists of bodies with different types of the electromagnetic spectrum. This includes high-energy bodies emitting radiation in short wavelengths and extremely short wavelengths such as in UV spectrum, X rays, and gamma rays. Conversely, other bodies might be emitting radiations in the longer wavelengths such as Microwaves and Radio waves.
The element missing from the moons and the planets would be Oxygen. It is to be remembered that Oxygen forms the base of the sustenance of life forms on Earth and forms an indispensable part of the carbon cycle. In the absence of oxygen, these planets and moons remain lifeless.
Stars emit heat and light. Along with the heat and light, radiations are emitted by the star. These radiations travel outward from stars and work as the signature of the stars. By analyzing the radiations from the stars, scientists back on Earth could deduce the physical conditions in the heart of a star including its constitution, temperature, and surface conditions.
The knowledge of the constitution of the elements making up the moon or planet is necessary to ascertain the life-sustaining capability of the same.
The car has a rechargeable battery to drive it’s motor. The rechargeable battery provided a potential difference of 330 volts and can store up to 64 mega Jules it takes 8 hours for the battery to receive a full charge assume that the charging process is 100% efficient calculate the total charge the flows while the battery is being charged
Answers
The total charge that flows while the battery is being charged is approximately 193,939.39 Coulombs.
To calculate the total charge that flows while the battery is being charged, we can use the relationship between electrical energy, potential difference, and charge.
The electrical energy (E) stored in the battery is given as 64 mega Jules (64 MJ). The potential difference (V) provided by the battery is 330 volts. We know that the energy (E) is equal to the product of the potential difference (V) and the charge (Q):
E = V * Q
Since the charging process is 100% efficient, all the electrical energy supplied is stored in the battery. Therefore, we can rearrange the equation to solve for the charge (Q):
Q = E / V
Substituting the given values, we have:
Q = 64 MJ / 330 V
To perform the calculation, we need to convert mega Jules (MJ) to joules (J) since the SI unit of energy is joules. One mega Joule is equal to 1 million joules:
Q = (64 * 10^6 J) / 330 V
Calculating the division:
Q ≈ 193,939.39 Coulombs
Therefore, the total charge that flows while the battery is being charged is approximately 193,939.39 Coulombs.
This value represents the quantity of electric charge transferred during the charging process, and it indicates the amount of electricity that enters the battery.
For more such questions on charge visit:
https://brainly.com/question/18102056
#SPJ8
look at the three solid blocks made of the same material and with the exact same dimensions which block has the greatest mass
Answers
Answer:
where are the solid blocks?
Explanation:
Which method can be used to calculate the percentage composition of a
compound?
Answers
I uploaded the answer to a file hosting. Here's link:
tinyurl.com/wpazsebu
1. You may be using medium for shoot regeneration from leaf explants of a plant in Expt-5. The plant media may contain the plant growth regulators (hoones) BA and NAA. The molecular weight of BK is 72 A : and NAA is 186. The media is pH to 5.8. (a) Before making the plant media, you found the pH to be 3.6. What would you add quiekly to get it to a pH of 5.8 (give a specific name of the solution)? Why? (1 pt) (b) How much BA will be weighed fot a 1M solution? (Y po) (c) Convert your answer from (b) to mg/ml. (Y/ pt) (d) Convert your answer from (c) to mg 1 . (1 pt) (e) How much BA will be weighed for a 5mM solution? (1/4pt) (f) Convert your answer from (c) to mg/ml. ( /4pt ) (g) Convert your answer from (f) to mg/L. (H/ pt) (h) Your stock solution of BA is 5mM and your working solution is 0.2mg/.. What volume of the stoc be added to 250ml of medium? [Hint: fook at the previous answers Keep to 4 decimal pts.) (3 pts Convert your answer from (h) to μI, and which pipettor will you use to aliquot the B. A? (1 pt)
Answers
(a) To get the pH of the media to 5.8, you would add NaOH solution. NaOH is used as a basic solution, and when it is added to a solution, it will increase the pH of the solution.
(b) The molecular weight of BA is 225.3. To prepare a 1M solution, you would have to weigh out 225.3 grams of BA.(c) To convert a 1M solution of BA to mg/mL, you can use the following equation: 1 mole = molecular weight in grams; 1000 millimoles = 1 mole. So, 1 M = 1000 mg/mL. Therefore, a 1M solution of BA is equivalent to 1000 mg/mL .(d) To convert a concentration of 1000 mg/mL .
Therefore, to calculate the weight required for a 5 mM solution, use the following formula :Mass of BA = molarity × volume × molecular weight= 5 × 0.001 × 225.3= 1.1265 grams(f) To convert a concentration of 5 mM to mg/mL, we use the following formula: Concentration (mg/mL) = (Concentration (mM) × Molecular weight) / 1000= (5 × 225.3) / 1000= 1.1265 mg/mL(g)
To convert a concentration of 1.1265 mg/mL to mg/L, we multiply by 1000, so 1.1265 mg/mL = 1126.5 mg/L.(h) Given that the stock solution of BA is 5 mM and the working solution is 0.2 mg/mL.
To know more about increase visit:
brainly.com/question/19383315
#SPJ11
9-fluorenone is colored (bright yellow color) but benzophenone is not (white). what accounts for this difference? look up the structure of 9-fluorenone and suggest a reason
Answers
When the keto group in 9-fluorenone absorbs light, it releases energy in the visible region because the light's wavelength changes, giving the impression of color. Due to a lack of π-π* bonding electrons, the alcohol group in 9-fluorenone does not absorb light in the visible spectrum and is hence colorless.
What does fluorenone consist of?Drugs that treat malaria are created using it. With the addition of glacial acetic acid and sodium hypochlorite solution and an oxidation process, it can be made from fluorenol. It is solid at room temperature and has a vivid neon yellow color.
What level of fluorenone is present in Portland, Oregon?In a semi-rural neighborhood of Portland, Oregon, during a series of four rainstorms in March and April 1982, fluorenone was detected in rainwater at an average concentration of 15 ng/L. (1).
Learn more about fluorenone here
https://brainly.com/question/21603104
#SPJ4
For strontium chloride, the light released when electrons transition between energy levels has a wavelength of 630 nm. Calculate:
the wavelength in meters
the frequency in Hertz
the Energy in Joules
Answers
what is the other term used to describe tropical cyclone when it is formed in the northwestern part of the pacific ocean
Answers
Answer:
Typhoons
Explanation:
A tropical cyclone is a word that is used by meteorologists to explain a rotating, organized system of clouds & thunderstorms that take their origins over tropical or subtropical waters and also possess closed but low-level circulation.
Now, In the Northwest part of the Pacific ocean, these tropical cyclones which are west of the dateline are referred to as Typhoons while In the southwest Pacific and in the Indian Ocean they are called Cyclones. Lastly, those that form over the Atlantic Ocean or eastern Pacific Ocean are referred to as hurricanes
Rank the elements aluminum, sodium, and phosphorus in order of decreasing conductivity.
Answers
The rank of the elements aluminum, sodium, and phosphorus in order of decreasing conductivity is Sodium > Aluminum > Phosphorus.
Sodium is the most conductive element among these three elements, which is due to its low ionization energy and low electronegativity. These factors allow sodium to donate its valence electron more easily to form ions and create electrical conductivity. Therefore, sodium is the most conductive among these three elements.On the other hand, aluminum, which is a metal, is also a good conductor of electricity because metals have free electrons that can flow easily. Phosphorus, on the other hand, is a nonmetal, which means it doesn't have free electrons and isn't a good conductor of electricity.
Sodium is the most conductive element, followed by aluminum and phosphorus. Sodium has low ionization energy and low electronegativity, which allows it to donate its valence electron more easily to form ions and create electrical conductivity. Aluminum, a metal, is also a good conductor of electricity because metals have free electrons that can flow easily. Phosphorus, a nonmetal, doesn't have free electrons and isn't a good conductor of electricity.
The elements aluminum, sodium, and phosphorus rank in order of decreasing conductivity as follows: Sodium > Aluminum > Phosphorus.
To know more about Phosphorus visit
https://brainly.com/question/31606194
#SPJ11
Please help me if your good with science:).
What is the speed of the train?
A.)1200km/h
B.)4 km/h
C.)75 km/h
D.)300 km/h
Answers
Besides reduced ubiquinone, what other electron-carrying molecules that will accumulate in the presence of antimycin A?
a. succinate
b. NADH
c. NAD+
d. fumurate
Answers
In this context, besides reduced ubiquinone, the other electron-carrying molecule that will accumulate in the presence of antimycin A is NADH (option b).
Antimycin A is an inhibitor that specifically targets the electron transport chain (ETC) within the mitochondria. When antimycin A is present, it binds to and inhibits complex III (cytochrome bc1 complex) of the ETC. This inhibition disrupts the normal flow of electrons, leading to the accumulation of certain electron-carrying molecules.
NADH is produced during earlier stages of cellular respiration, specifically in the citric acid cycle and glycolysis. It donates its electrons to complex I (NADH dehydrogenase) of the ETC, initiating the electron flow. However, when complex III is inhibited by antimycin A, the electrons cannot be passed further along the chain, causing NADH to accumulate.
Succinate (option a) and fumarate (option d) are both involved in the citric acid cycle, but they do not directly carry electrons in the ETC. Instead, succinate is converted to fumarate by succinate dehydrogenase, producing reduced flavin adenine dinucleotide (FADH2) as the electron carrier. NAD+ (option c) is the oxidized form of NADH and will not accumulate since it is not an electron-carrying molecule in this context.
To learn more about ubiquinone, refer:-
https://brainly.com/question/31324880
#SPJ11
3. on the heating side of a dsc cycle an endothermic peak is observed; however, on the cooling side the heat flow remains constant. what type of process occurred in the applied temperature range?
Answers
The type of process occurred in the applied temperature range is: Phase changes.
The heating side of a DSC cycle shows an endothermic peak, while on the cooling side the heat flow remains constant. This indicates that the process that occurred in the applied temperature range was a phase change. During the phase change, energy is required to change the state of the material, resulting in the endothermic peak.
During the cooling process, the heat flow remains constant because the material has already undergone the phase change and does not require additional energy.
Phase changes occur when the temperature and pressure of a substance reach a certain point. This point is called the phase transition point and is typically indicated by a peak in the DSC curve. In the case of the DSC cycle, the phase transition point is when the material goes from a solid to a liquid or vice versa.
In conclusion, when a DSC cycle is observed and an endothermic peak is observed on the heating side and constant heat flow is observed on the cooling side, a phase change has occurred in the applied temperature range.
To know more about endothermic refer here:
https://brainly.com/question/23184814#
#SPJ11
aldehydes have a central carbon bound to two other carbons: T/F
Answers
It is untrue to say that aldehydes have a core carbon bonded to two additional carbons.
The carbonyl group in an aldehyde has a covalent bond on one side with hydrogen and another on the other with carbon. Because the carbonyl carbon in formaldehyde is connected to two hydrogens, it is an exception to this rule.
The simplest aldehyde structure, formaldehyde, often known as methanal, has the formula CH₂O. Ketone molecules consist of a core atom that is joined to two extra carbons via two bonds. It may be formulated using the equation R₂C=O. Acetone (propanone), whose chemical formula is (CH₃)₂CO, is the ketone with the most straightforward chemical structure.
For such more question on aldehydes
https://brainly.com/question/18433258
#SPJ4
1. You claim that atomic model should not be continually changed. What reasoning would you give someone to help them understand your claim?
Answers
The claim that the atomic model should not be continually changed is based on the principle of scientific stability and coherence. Continually changing the atomic model can undermine the stability of scientific understanding and impede the development of robust theories.
The claim that the atomic model should not be continually changed is based on the principle of scientific stability and coherence. Continually changing the atomic model can undermine the stability of scientific understanding and impede the development of robust theories. The current atomic model, based on quantum mechanics and the understanding of subatomic particles, has provided a consistent framework that has successfully explained and predicted numerous phenomena. This model has undergone rigorous testing, verification, and refinement over the years. While scientific progress and new discoveries are essential, it is important to maintain a balance between incorporating new evidence and maintaining a stable foundation. Frequent changes to the atomic model can lead to confusion and make it difficult to build upon existing knowledge. It is preferable to refine and expand upon the current model as new evidence emerges, rather than discarding it entirely. This approach ensures continuity and progress in scientific understanding while maintaining a coherent framework for further exploration.
For more question on coherence
https://brainly.com/question/13386258
#SPJ8
which species are more likely to act as ligands? select all that apply. which species are more likely to act as ligands?select all that apply. neutral molecules that are polar positively charged ions neutral molecules that are nonpolar negatively charged ions
Answers
The species that could be able to act as ligands are the following;
Neutral molecules that are polarNegatively charged ionsWhat are ligands?The term ligands has to do with a substance that can be able to attract a metal ion or a metal atom. It is therefore common to see that a ligand would have a lone pair of electrons or a negative charge that can be used to attract the metal atom or the metal ion.
We can see so many example of the ligands that can be found in the biological systems as well as the ligands that can be able to combine with metal ions in the area of coordination chemistry as we know.
We can now see that the ligands are neutral molecules or sometimes negatively charged ions.
The negative charge as have been said before are used in the process of binding.
Learn more about ligands:https://brainly.com/question/2980623
#SPJ1
m%of solution containing 100 gram of NaCl dissolved in 500g of water
Answers
Answer:
16.7 %(m/m)
Explanation:
The percent by mass of a solution (% m/m) is defined as 100 times the ratio of the mass of solute (The substance in the lower amount, NaCl) and the mass of the solution = Mass solute + Mass Solvent (water).
Mass Solution:
100g NaCl + 500g water = 600g solution
Mass Percent:
100g NaCl / 600g solution * 100
= 16.7 %(m/m)
What is the name of the ability to use up energy in one second
Answers
Answer:
Work
Explanation:
Work is defined as the ability to use energy in one second and its SI unit is same as energy that is joule.
Work refers to the energy utilized to displace an object over a distance by an external force in one direction and in given time period which can be one second as well.
Hence, the correct answer is "work".
Which of the following could potentially have a mutation? (Check all that may apply.)
Fungi
Animals
Bacteria
Viruses
Plants
Answers
Answer:
all of them
Explanation:
what is the caloric content of palmitic acid in cal/g?
Answers
The caloric content of palmitic acid is approximately 9 calories per gram (cal/g) which represents the potential energy that can be obtained from metabolizing palmitic acid in the body.
The caloric content of a substance is determined by the amount of energy it provides when metabolized. Fatty acids, such as palmitic acid, are a type of macronutrient that can be metabolized to release energy.
On average, fats provide approximately 9 calories per gram. This includes both saturated and unsaturated fats, including palmitic acid. Therefore, the caloric content of palmitic acid is approximately 9 cal/g.
It's important to note that this caloric value represents the potential energy that can be obtained from metabolizing palmitic acid in the body. The actual number of calories derived from palmitic acid in the diet may depend on various factors, such as the efficiency of digestion and absorption, individual metabolic rates, and other dietary components.
The caloric content of palmitic acid is approximately 9 calories per gram (cal/g). This value represents the potential energy that can be obtained from metabolizing palmitic acid in the body.
To know more about palmitic acid, visit
https://brainly.com/question/23161309
#SPJ11
When two plates press together and a mountain begins to form witch of the following happens?
Answers
Answer:
When two plates press together and a mountain begins to form, which of the following happens? The plate slowly begins to bend because even though the plate material is hard it can still be bent and folded over a very long period of time.
Ozone gas in the stratosphere protects us from ________________________, but ozone gas in the troposphere is considered a _________________ and can be an irritant or cause someone with asthma to have an attack.
Answers
Answer:
ultraviolet radiation
greenhouse gas
Explanation:
hop it helps
CaO+HNO3
what is the product
Answers
The reaction between calcium oxide (CaO) and nitric acid (HNO3) produces calcium nitrate (Ca(NO3)2) and water (H2O) as products.
The balanced chemical equation for the reaction is:
CaO + 2HNO3 -> Ca(NO3)2 + H2O
In this equation, one molecule of calcium oxide (CaO) reacts with two molecules of nitric acid (HNO3). The calcium oxide reacts with the nitric acid to form calcium nitrate (Ca(NO3)2) and water (H2O).
Calcium nitrate is an ionic compound composed of calcium cations (Ca2+) and nitrate anions (NO3-). It is a white, crystalline solid and is commonly used as a fertilizer and in various industrial applications.
Water is a co-product in this reaction and is formed as a result of the combination of the hydrogen (H+) ions from the acid and the oxide (O2-) ions from calcium oxide.
for more questions on reaction
https://brainly.com/question/24795637
#SPJ11
which of the following chemicals provide health benefits and give plant foods their color, aroma, and flavor?
Answers
Plant foods are rich in phytochemicals, which are natural compounds that provide numerous health benefits. These phytochemicals are responsible for the color, aroma, and flavor of plant foods. Some of the important phytochemicals that provide health benefits include flavonoids, carotenoids, and anthocyanins.
Flavonoids are antioxidants that protect the body from damage caused by free radicals. They are found in many plant foods, including berries, citrus fruits, tea, and dark chocolate. Carotenoids are pigments that give plant foods their bright colors, such as red, yellow, and orange. They are converted into vitamin A in the body and have been linked to a lower risk of cancer, heart disease, and age-related eye diseases. Carotenoids are found in fruits and vegetables like carrots, tomatoes, sweet potatoes, and spinach.
Anthocyanins are pigments that give fruits and vegetables their deep red, blue, and purple colors. They are potent antioxidants and have been shown to reduce inflammation, protect against heart disease, and improve cognitive function. Foods that are high in anthocyanins include berries, grapes, red cabbage, and eggplant.
In summary, the phytochemicals flavonoids, carotenoids, and anthocyanins provide health benefits and give plant foods their color, aroma, and flavor. Including a variety of colorful fruits and vegetables in your diet is a great way to ensure that you are getting a range of phytochemicals to support your health.
To know more about Compounds visit :
https://brainly.com/question/14117795
#SPJ11
What is the total number of atoms present in 5Na,PO.?
Answers
Answer:
3.01×10²⁴ atoms
Explanation:
Our compound is the Na₃PO₄
Sodium phosphate.
We assume, we have 5 moles of the mentioned salt.
1 mol of anything contains 6.02×10²³ atoms.
That's the Avogadro's number. The conversion is:
5 mol . 6.02×10²³ atoms /1mol = 3.01×10²⁴ atoms
Magnesium (Mg) has nine electrons. Which of the following shows the correct electron configuration for an atom of Mg?
2, 2, 5
7, 2
1, 8
2, 7
brailyist please help me
Answers
Answer:
2,7
Explanation:
Two in the first shell and 7 in the outer and last shell.
HOPE THIS HELPED
Write the balanced nuclear equation.
263
1.
Sg
254 Rf + A He
106
104
4
2.
211
At
83
He
2
3.
248
96
Cm + He
4
-
235
U
92
+
He
4.
2
Answers
Answer:
pag pinag balik tad moyan tama magiging tama sagot nya promise jslsh