Match the following toxicity symptoms with the mineral with which they are associated.
Iron
Answers
Iron toxicity symptoms are generally associated with excessive intake or accumulation of iron in the body, which can lead to various health issues. These symptoms include.,
1. Fatigue and weakness: Excessive iron can cause damage to the mitochondria, which are responsible for producing energy in cells. This damage can result in reduced energy production, leading to fatigue and weakness.
2. Joint pain: Iron overload can cause inflammation in the joints, leading to pain and discomfort.
3. Abdominal pain: Excessive iron intake can lead to irritation of the gastrointestinal lining, causing abdominal pain.
4. Liver damage: High iron levels can lead to liver damage, including cirrhosis and liver failure.
5. Heart problems: Excess iron in the body can contribute to heart issues, such as arrhythmias, congestive heart failure, and even heart attacks.
6. Diabetes: High iron levels can affect insulin production and sensitivity, leading to an increased risk of developing type 2 diabetes.
7. Skin discoloration: Iron overload can cause an accumulation of iron in the skin, resulting in a bronze or gray discoloration.
Remember to monitor your iron intake and consult with a healthcare professional if you experience any of these symptoms.
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WILL MARK AS BRAINLIEST IF CORRECT
Answers
Answer:
I don't know what is the actual answer
What is the mass of ether(0. 71) which can be put into a beaker holding 130ml
Answers
The mass of ether that can be put into a 130 mL beaker is approximately 92.3 grams.
How to find the mass of the etherTo calculate the mass of ether that can be put into a 130 mL beaker, we need to know the density of ether.
The density of ether varies depending on the specific type of ether, but assuming you are referring to diethyl ether, the density is approximately 0.71 g/mL.
Using the density and the volume of the beaker, we can calculate the maximum mass of ether that can be put into the beaker as follows:
Mass of ether = Density x Volume
Mass of ether = 0.71 g/mL x 130 mL
Mass of ether = 92.3 grams
Therefore, the maximum mass of diethyl ether that can be put into a 130 mL beaker is approximately 92.3 grams.
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considering the following precipitation reaction: barium hydroxide(aq) copper (ii) acetate(aq) (you know) which ion would not be present in the complete ionic equation? hint: write chemical formulas and predict physical states for the products. compound that is insoluble in water will not form ions. group of answer choices acetate ion acetate ion hydroxide ion copper(ii) ion all of these ions are in the complete ionic equation.
Answers
All of the given ions (acetate, hydroxide, and copper(II)) are present in the complete ionic equation. In the given precipitation reaction, barium hydroxide(aq) and copper (II) acetate(aq) react to form a precipitate of barium acetate(s) and a soluble product, copper (II) hydroxide(aq).
The complete ionic equation for the reaction would show all the aqueous ions dissociated in the solution. However, since barium acetate is insoluble in water, it will not dissociate into its constituent ions. Therefore, the ion that would not be present in the complete ionic equation is the acetate ion. The other ions, including acetate ion, hydroxide ion, and copper (II) ion, will be present in the complete ionic equation.
The precipitation reaction between barium hydroxide (Ba(OH)2) and copper(II) acetate (Cu(C2H3O2)2) can be represented as:
Ba(OH)2(aq) + Cu(C2H3O2)2(aq) → Ba(C2H3O2)2(s) + Cu(OH)2(s)
In the complete ionic equation, only soluble compounds are separated into ions:
Ba²⁺(aq) + 2OH⁻(aq) + Cu²⁺(aq) + 2C2H3O2⁻(aq) → Ba(C2H3O2)2(s) + Cu(OH)2(s)
Since both Ba(C2H3O2)2 and Cu(OH)2 are insoluble, they are not dissociated into ions. Thus, all of the given ions (acetate, hydroxide, and copper(II)) are present in the complete ionic equation.
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Which species is the reducing agent in a redox reaction? Chem is hard
Answers
Answer:
The species that furnishes the electrons is called the reducing agent. In this case, the reducing agent is zinc metal.Explanation:
Hopes this helps. Mark as brainlest plz!In a redox reaction, the species which is oxidized acts as the reducing agent.
In a redox reaction, The substance losing electrons is the reducing agent and is being oxidised. The substance that gains electrons is the oxidising agent and is being reduced.
An oxidising agent isdefined as a substance that causes oxidation by accepting electrons and thus becoming reduced.
A reducing agent is defined as a substance that reduces by losing electrons and thus becomes oxidised.
Substances that have the ability to oxidise other substances are referred to as oxidising agents or oxidants
Substances that have the ability to reduce other substances are referred to as reducing agents or reductants.
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The question should be
Which species is the reducing agent in a redox reaction?
Cecilia finds this cell under the microscope:
How does she know it is an animal cell?
A It does not have a cell wall.
B It has a cell membrane.
C It has a nucleus.
D It is round.
Answers
Answer:
all of the above options is correct because animal cell have all the mention features.
hope it helps you have a great day keep smiling be happy stay safe ☺️
What is the molar concentration a a 12 % sodium chloride solution (MW 58.5)
Answers
The molar concentration of a 12% sodium chloride solution is approximately 2.05 M.
To determine the molar concentration of a 12% sodium chloride solution, we need to convert the given percentage concentration into molarity.
First, we need to understand that the percentage concentration refers to the mass of the solute (sodium chloride) relative to the total mass of the solution.
In this case, a 12% sodium chloride solution means that there are 12 grams of sodium chloride in 100 grams of the solution.
To convert this into molar concentration, we need to consider the molar mass of sodium chloride, which is 58.5 g/mol.
We can start by calculating the number of moles of sodium chloride in 12 grams:
Moles of sodium chloride = mass of sodium chloride / molar mass of sodium chloride
Moles of sodium chloride = 12 g / 58.5 g/mol = 0.205 moles
Next, we calculate the volume of the solution in liters using the density of the solution. Since the density is not provided, we assume a density of 1 g/mL for simplicity:
Volume of solution = mass of solution / density
Volume of solution = 100 g / 1 g/mL = 100 mL = 0.1 L
Finally, we calculate the molar concentration (Molarity) by dividing the number of moles by the volume in liters:
Molar concentration = moles of solute / volume of solution
Molar concentration = 0.205 moles / 0.1 L = 2.05 M
Therefore, the molar concentration of a 12% sodium chloride solution is approximately 2.05 M.
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PLEASE HELP ME WITH THIS QUESTION THIS FREAKING SUCKS
A student dissolves 0.250 mol NaC1 in 2.05 kg H20. What is molality of the resulting solution? Show your work.
Answers
Answer:
m = 0.122 m
Explanation:
Molality(m): A measure of the number of moles of solute in a solution corresponding to 1 kg or 1000 g of solvent.
\(\mathrm{Molality\:Formula}:\quad \mathrm m = \dfrac{ mole\:of\:solute }{ mass\:of\:solvent\:in\:kg }\)
\(\mathrm m = \dfrac{ mole}{ kg }\)
\(\mathrm{Substitute\:the\:numbers\:into\:the\:"Molality\:Formula"}\)
\(\mathrm m = \dfrac{ 0.250 }{ 2.05 }\)
\(\mathrm{Divide\:0.250\:by\:2.05\:and\:get\:0.12195122}\)
\(\mathrm m = {0.12195122}\)
\(\mathrm{Round\:to\:the\:nearest\:thousandths\:place}\)
\(\mathrm m = 0.122\)
Answer:
To calculate the molality of the resulting solution, we need to use the formula:
Molality (m) = moles of solute / mass of solvent (in kg)
Given:
Number of moles of NaCl (solute) = 0.250 mol
Mass of H2O (solvent) = 2.05 kg
Step 1: Convert the mass of the solvent from grams to kilograms:
Mass of H2O = 2.05 kg
Step 2: Calculate the molality using the formula:
Molality (m) = moles of solute / mass of solvent (in kg)
Molality = 0.250 mol / 2.05 kg
Molality = 0.122 mol/kg
Therefore, the molality of the resulting solution is 0.122 mol/kg.
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What must scientists be mindful
of during their experiments?
A. The feelings of the subjects
B. Strict controls
C. What others will think of their experiment
Answers
Answer:
b
Explanation:
Determine the partial pressure and number of moles of each gas in a 16.75L vessel at 30 degree C containing a mixture of xenon and neon gases only. The total pressure in the vessel is 7.10 atm, and the mole fraction of xenon is 0.721.
What is the partial pressure of xenon?
What is the partial pressure of neon?
What is the number of moles of xenon?
What is the number of moles of neon?
Answers
First, we will calculate the number of moles of mixture of Xenon and Neon gases.Number of moles of mixture of Xenon and Neon gases:
Let x be the mole fraction of Neon.
Therefore, (1 - x) is the mole fraction of Xenon
.Mole fraction of Neon + Mole fraction of Xenon = 1x + (1 - x) = 1x = 1 - (1 -
x = 0 + x
x = 0.279
Mole fraction of Neon = 0.279
Mole fraction of Xenon = 0.721
Number of moles of gas = (Total Pressure * Volume)/(Gas Constant * Temperature)
Number of moles of Xenon = (7.10 atm * 16.75L * 0.721)/(0.08206 * (273 + 30))
Number of moles of Xenon = 8.44 moles
Number of moles of Neon = (7.10 atm * 16.75L * 0.279)/(0.08206 * (273 + 30))
Number of moles of Neon = 3.29 moles
Now, we can calculate the partial pressure of Xenon and Neon.
Partial pressure of Xenon:
Partial Pressure of Xenon = Mole fraction of Xenon * Total Pressure
Partial Pressure of Xenon = 0.721 * 7.10 atm
Partial Pressure of Xenon = 5.12 atm
Partial pressure of Neon
Partial Pressure of Neon = Mole fraction of Neon * Total Pressure
Partial Pressure of Neon = 0.279 * 7.10 atm
Partial Pressure of Neon = 1.98 atm
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Consider the chemical equation.
2NBr3 + 3NaOH Right arrow. N2 + 3NaBr + 3HOBr
If there are 40 mol of NBr3 and 48 mol of NaOH, what is the excess reactant?
N2
NBr3
NaOH
HOBr
Answers
The excess reactant in the given chemical equation is NaOH. This can be determined by comparing the stoichiometric ratios of NBr3 and NaOH in the balanced equation. The equation shows that 2 moles of NBr3 react with 3 moles of NaOH. Therefore, for every 3 moles of NaOH, we need 2 moles of NBr3. In this case, there are 48 moles of NaOH, which is more than the required amount. Thus, NaOH is the excess reactant.
To determine the excess reactant, we compare the stoichiometric ratios of the reactants in the balanced equation. The coefficient of NBr3 is 2, indicating that 2 moles of NBr3 react with 3 moles of NaOH. We can set up a ratio to calculate the required amount of NBr3 for 48 moles of NaOH:
(2 moles NBr3) / (3 moles NaOH) = (x moles NBr3) / (48 moles NaOH)
Solving for x, we find:
x = (2/3) * 48 = 32 moles NBr3
Since we have 40 moles of NBr3, which is more than the required amount of 32 moles, NBr3 is not the excess reactant. Therefore, the remaining reactant, NaOH, must be the excess reactant. It means there is an excess of 48 - 32 = 16 moles of NaOH, which will not be fully consumed in the reaction.
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30. The remains of a murder victim are found to contain 90 \% of the normal amount of . Taking the half-life of to be 5600 years. Determine how long ago the murder took place?
Answers
The murder took place approximately 851.2 years ago.
To solve this problemBased on the isotope's half-life, we must determine the age of the remains.
90% of the normal amount being present in the remains means that 0.90 of the isotope is still present.
The equation for radioactive decay can be used:
fraction remaining =\((1/2)^(^n^/^t^)\)
Where
fraction remaining = 0.90 (given)n = number of half-lives that have passedt = half-life of the isotopeWe can rearrange the formula to solve for the number of half-lives (n):
n = (log base 0.5) (fraction remaining)
Using the given fraction remaining of 0.90:
n = (log base 0.5) (0.90)
n ≈ 0.152
Since the number of half-lives is a fraction, we can convert it to years by multiplying it by the half-life:
time elapsed = n * t
time elapsed ≈ 0.152 * 5600 years
time elapsed ≈ 851.2 years
So, the murder took place approximately 851.2 years ago.
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WILL GIVE BRAINLIEST PLZ HELP!!!!!!
Answers
Answer:
D
Explanation:
The picture depicts the data of the chemical, explaining that as the temperature rises, the chemical reaction rate would increase as well.
Baking powders always contain at least two active ingredients. Name them. Which one is responsible for the production of CO2?
Answers
Baking powders contain at least two active ingredients: a base and an acid. Baking soda (sodium bicarbonate) is responsible for the production of carbon dioxide (CO2) gas during baking.
Baking powders typically contain at least two active ingredients: a base and an acid. The base is usually baking soda (sodium bicarbonate), and the acid can be cream of tartar (potassium bitartrate), sodium acid pyrophosphate, or a combination of acids.
Among these ingredients, baking soda (sodium bicarbonate) is primarily responsible for the production of carbon dioxide (CO2) gas. When baking soda reacts with the acid in the presence of moisture, it undergoes a chemical reaction called acid-base reaction or neutralization reaction. This reaction produces carbon dioxide gas, which creates bubbles and causes the dough or batter to rise. The release of carbon dioxide gas during baking gives the baked goods their characteristic texture and lightness.
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assess the extent to which there are interrelationships between processes in the water cycle and factors driving change in the carbon cycle.
Answers
The most important interrelationship between the carbon cycle and the water cycle is the loss of water from the oceans through the evaporation.
The interrelationship between the carbon and the water cycle is the loss of water from the oceans through the evaporation. The water is evaporated into the atmosphere and then condensed into the precipitation. The water cycle is the regular movement of the water between the hydrosphere, the lithosphere, the atmosphere and the cryosphere.
These will leads to a change in the movement of carbon. The carbon cycle is process in which the carbon atoms will continuously travel from atmosphere to the Earth , then come back into the atmosphere.
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Geologist learn about Earth’s interior by studying ______, which move through Earth.
Answers
Answer - Seismic Waves.
Answer - Seismic Waves.
hope this helps!
A gas container is initially at 40.8 mmHg and 88 K. What will the pressure be when the container warms up to 21 C
Answers
answer
136.2 mmHg
quick explanation :
P1 / T1 = P2 / T2
P2 = (P1 * T2) / T1
T1 = 88 K = -185.15 °C
T2 = 21 °C + 273.15 = 294.15 K
P2 = (40.8 mmHg * 294.15 K) / (88 K) = 136.2 mmHg
detailed explanation :
Gas pressure calculation.
(P1 * V1) / (T1) = (P2 * V2) / (T2)
P1 = initial pressure
V1 = initial volume (assumed constant)
T1 = initial temperature
P2 = final pressure (what we want to find)
V2 = same as V1 (assumed constant)
T2 = final temperature
T1 = 88 K = -185.15 °C
T2 = 21 °C + 273.15 = 294.15 K
(P1 * V1) / T1 = (P2 * V2) / T2
assuming that the volume of the container remains constant, so V1 = V2
P1 / T1 = P2 / T2
P2 = (P1 * T2) / T1
P2 = (40.8 mmHg * 294.15 K) / (88 K) = 136.2 mmHg
Therefore, the pressure in the container will be 136.2 mmHg when it warms up to 21 °C.
ChatGPT
One mole of ____ contains the largest number of atoms.
1) S8
2) Cl2
3) Al2(SO4)3
4) C10H8
5) Na3PO4
Answers
One mole of C₁₀H₈ contains the largest number of atoms ( option 4 )
First step : Determine the number of atoms in each mole of the given elements
For S₈8 atoms of sulphur
∴Total atoms = 8 atoms
For CI₂2 atom of Chlorine
∴ Total atoms = 2 atoms
For AI₂(S0₄)₃2 atoms of Al
3 atoms of sulphur
12 atoms of oxygen
∴ Total = 17 atoms in one mole of AI₂(S0₄)₃
For C₁₀H₈10 atoms of Carbon
8 atoms of hydrogen
Total atoms = 18 atoms
For Na₃PO₄3 atoms of sodium
1 atom of P
4 atoms of Oxygen
Total atoms = 8 atoms
Hence we can conclude that One mole of C₁₀H₈ contains the largest number of atoms in the set of elements listed.
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write the complete balanced equation for the decomposition of AI(CIO3)3.
Answers
Answer:
2AL(ClO3)3 → 2ALCl3 + 9O2
Explanation:
2-ciclopropilpropano
Answers
Answer:
cool
Explanation:
At higher altitudes would there be more or less
oxygen available to breathe?
a. Less oxygen is available at higher altitudes.
b. More oxygen is available at higher altitudes.
Answers
Answer: less oxygen available at higher altitudes
Explanation:
The higher in elevation you get, the lower the air pressure, allowing oxygen atoms to spread out farther, therefore making available oxygen less.
the higher up you get the higher the air pressure is
Which statement about paper chromatography is correct?
A A solvent is needed to dissolve the paper.
B
Paper chromatography separates mixtures of solvents.
с
The solvent should cover the baseline.
D The baseline should be drawn in pencil.
Answers
None of the given options is entirely correct.
With paper chromatography, mixtures of substances are separated according to how well they dissolve in a solvent and how well they stick to the paper's fibers.
What is paper chromatography?A laboratory method called paper chromatography is used to separate mixtures of substances into their constituent parts. It is founded on the idea that different substances would flow through a stationary phase (in this case, a sheet of paper) at varying rates depending on how soluble they are in a particular solvent.A small amount of the mixture is put on a strip of filter paper close to one end for paper chromatography. In a container with a tiny amount of suitable solvent in the bottom, the paper is then placed upright. The various parts of the mixture are carried up the paper by the solvent as it rises. Depending on their solubility and capacity to cling to the paper fibers, the components migrate over a range of distances.learn more about paper chromatography here
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which type of chemical reaction must be predicted using solubility rules?
Answers
Solubility rules are used to predict the outcome of precipitation reactions, which involve the formation of insoluble products.
Solubility rules are guidelines that help predict the solubility of different compounds in water. These rules are based on the general principles of ionic interactions and the solubility of common ionic compounds. When two soluble compounds are mixed together, a precipitation reaction may occur if the resulting compound formed is insoluble in water.
In precipitation reactions, the reactants are typically aqueous solutions of two different compounds. The solubility rules are used to determine if a precipitate will form by identifying the combination of ions that can form an insoluble compound. The rules state that certain combinations of ions will result in the formation of insoluble products, while others will remain soluble in water.
In conclusion, solubility rules are used to predict precipitation reactions, which involve the formation of insoluble products. These rules help determine whether certain combinations of ions will result in the formation of a precipitate or if the compounds will remain soluble in water. By understanding the solubility properties of different ions, scientists and chemists can predict the outcome of chemical reactions and better understand the behavior of substances in solution.
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Click in the answer box to activate the palette. Give the condensed electron configuration of Lu3+.
Answers
The electron configuration of Lu is [Xe] 4f14 5d1 6s2. When Lu loses 3 electrons to become Lu3+, it becomes [Xe] 4f14 5d0 6s2.
Since the 5d sublevel is empty, we can condense the electron configuration to [Xe] 4f14. Therefore, the condensed electron configuration of Lu3+ is [Xe] 4f14. The electron configuration of Lu3+ can be determined by first finding the electron configuration of the neutral Lu (Lutetium) atom and then removing three electrons from it. The electron configuration for Lu is [Xe] 4f14 5d1 6s2. Since Lu3+ has lost 3 electrons, we will remove 2 electrons from the 6s orbital and 1 electron from the 5d orbital. Therefore, the condensed electron configuration for Lu3+ is [Xe] 4f14.
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SCIENCE, PLEASE HELP.
Which of the following correctly pairs the subatomic particle with its charge? (2 points) Group of answer choices Electron—neutral Electron—positive Neutron—neutral Neutron—positive
Answers
Answer: B
Explanation:
protons are positive,
electrons are negative,
and neutrons are neutral.
the amount of electrons to protons is always the same in a balanced atom.
electrons can be removed creating "ions" which is simply an unbalanced atom. removing protons would result in a different type of atom or element.
Answer:
Neutron - neutral
Explanation:
This was the correct answer for the test I just took.
What must two objects have in order for gravitational force to act on them?
Answers
Answer:
Mass and Distance
Explanation:
Because I know.
Answer:
"Gravity is a force of attraction between two objects that depends on two things: mass and distance. Mass: The greater the mass of two objects, the greater the gravitational force between the objects."
Explanation:
Will mark Brainliest!!! PLEASE HELP
Answers
2= B
3= E
4= F
5= A
PLEASEEEEEEEEEEEEEEE I NEED THEM DONE ASAPPPPPPPPP I CANT WAIT
THE QUESTIONS ARE GONNA DETERMINE 30% OF MY GRADE SO PLEASE EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE ._.
Answers
Answer:
lol good luck
Explanation:
u need it
WHATS H2O??????????????
Answers
Answer:
Explanation:
water
H. 2. O is the chemical formula for water, meaning that each of its molecules contains one oxygen and two hydrogen atoms
Hsaio manages the finances for her company and has a particularly large amount of money budgeted for the purchase of calcium chloride, or CaCl2. Which type of company does Hsaio most likely own?
a snow-plowing service
a cosmetics factory
a pottery art studio
a catering business
Answers
Answer:
cosmetics factory
Explanation:
The company owned by Hsaio has been most likely to be the cosmetic factory. Hence, option B is correct.
What is a cosmetics factory?A cosmetic manufacturer is a company that manufactures cosmetic items. The products manufactured by the cosmetic industry include soap, shampoo, and toothpaste that smell good, such as perfume and deodorant.
The cosmetic industry products are formed to be viscous in nature, in order to be applied with ease in personal care. Calcium chloride has been the chemical agent that has been mediating to add viscosity to cosmetic products.
Since, Hsaio has been incorporating most of the budget of his company over calcium chloride, a product used in the cosmetic industry. Thereby he is most likely to own a cosmetic factory. Hence, option B is correct.
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What mass of glucose can be produced from photosynthesis reaction using 10.0 mols co2
Answers
Answer:
300.06 grams of glucose can be produced from a photosynthesis reaction that occurs using 10 moles of carbon dioxide.
Explanation: