Write the nuclear symbol for the neutral atom shown. 5 protons, 6 neutrons, 5 electrons. nuclear symbol:

The state of matter that is characterized by atoms that are moving rapidly, spread apart, and unorganized and that will take the shape of the container is gas; option A

Matter is the material substance from which the universe is made from,

Matter exists in four different states:

Each of the four states of matter possess unique properties that differentiate them one from another.

Generally however, the properties of shape and volume is as follows:

Gases have no definite volume or shape. They rapidly fill up the volume of their containers.

Liquids have definite volume but no definite shape.

Solids have definite volume and shape.

In conclusion, matter exists in different states which all have unique properties.

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From the given graph plotting the rate of photosynthesis versus the temperature, the rate of oxygen production is greatest at the point M.

Photosynthesis is the biochemical process of synthesising chemical energy by green plants  with the aid of light energy. The photosynthetic reaction involves the combination of carbon dioxide and water producing oxygen gas and glucose.

The chemical energy is stored in plants in the form of glucose which is then break down by the need of energy forming ATP.  The photosynthetic reaction is affected by the temperature and pressure of the atmosphere.

From the graph, it is clear that, the rate of photosynthesis is higher at the point M. Higher the rate of photosynthesis, higher will be the oxygen production. Hence, option B is correct.

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Answer:

The Orbital that involves in the boding of acetone are sigma and pi

Explanation:

Correct if I’m wrong UwU

Answer:

0.551 moles

Explanation:

To calculate the number of moles in 22 grams of argon, divide the mass by the molar mass:

Number of moles = Mass / Molar mass

Number of moles = 22 g / 39.95 g/mol

Number of moles ≈ 0.551 moles

Therefore, there are approximately 0.551 moles of argon in 22 grams of argon.

The process's entropy change has the sign  ΔSsys > 0

The entropy of an isolated system never decreases, according to the Second Law of Thermodynamics.

This means that for a process to be spontaneous, the entropy of the system must increase.

This is the theory used in this question to predict the sign of the entropy change for the dissolution process.

In the given  question ,

This is an example of a dissolution process, which is an endothermic process because energy is required to break the strong ionic bonds of the solid.

Therefore, the entropy of the system increases as the molecules become more disordered, leading to a positive entropy change, ΔSsys > 0.

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Answer:

A. Draw a conclusion

Explanation:

correct me if I'm wrong :>

Answer:

answering so the person who wanted brainliest can get it :D

<3

Answer:

B

Explanation:

Elements in a group are determined by the number of valence electrons

Elements in a period are determined by the number of electrons shell

The electronic configuration of the element is

2,8,8

the number of valence electron is 8 that means it is in Group 8/O

the number of electron shell is 3 that means it is in period (row) 3

Group 8/O elements are called Noble gases

Answer:

a. pentane = C5H12

b. Heptane = C7H16

c. Hexyne = C6H10

d. Octene = C8H16

e. Nonane = C9H20

Hope it helps.

1-pentene

Molecular Formula C5H10

Condensed Structural FormulaCH2=CH(CH2)2CH3

Melting Point (°C)–138

Boiling Point (°C)30

2- heptane is the straight-chain alkane with the chemical formula H3C(CH2)5CH3 or C7H16, and is one of the main components of gasoline (petrol).

Answer:

Br-CH2-CH(CH3)2-C(Cl)H-CH(CH3)2-CHO

Explanation:

The molecule has a total of 14 carbon atoms, 13 hydrogen atoms, and 1 bromine atom. The carbon atoms are arranged in a chain with a methyl group attached to the second carbon atom, a chlorine atom attached to the third carbon atom, and two methyl groups attached to the fourth carbon atom. The fifth carbon atom has a carbonyl group attached to it.

The molecule is an aldehyde, which means that it has a carbonyl group (C=O) at the end of the chain. The carbonyl group is polar, and the oxygen atom has a partial negative charge. The hydrogen atom has a partial positive charge. This polarity makes the aldehyde group susceptible to nucleophilic attack.

The bromine and chlorine atoms are both electrophilic, which means that they have a partial positive charge. This makes them susceptible to nucleophilic attack.

The methyl groups are non-polar and do not have any significant reactivity.

The molecule is a chiral molecule, which means that it has a mirror image that is not superimposable on itself. This is because the carbon atom with the carbonyl group is attached to four different groups.

The molecule is a liquid at room temperature and has a strong odor. It is used in a variety of products, including perfumes, flavorings, and plastics.

population is the number of species living in a given area if this is regarding biology or earth studies :)

The enthalpy change of the reaction C(diamond) → C(graphite) is -2.9 kJ.

The given information is ΔHrxn for the reaction C(diamond) → C(graphite) can be calculated with the given equations:Equations:  C(diamond) + O2(g) → CO2(g) ΔH = −395.4 kJ  2 CO2(g) → 2 CO(g) + O2(g) ΔH = 566.0 kJ  C(graphite) + O2(g) → CO2(g) ΔH = −393.5 kJ  2 CO(g) → C(graphite) + CO2(g) ΔH = −172.5 kJThe required reaction can be obtained by adding the equations (1) and (4), as follows:C(diamond) + O2(g) + 2CO(g) → C(graphite) + 3CO2(g)Addition of the two equations (1) and (4) results in a reaction whose products are C(graphite) and CO2.

To get the final equation that involves only the required reactants and products, the equation (2) should be added, which consumes CO2 and produces O2, as shown below:C(diamond) + O2(g) → CO2(g)  ΔH = −395.4 kJ [eq. (1)]  2 CO(g) → C(graphite) + CO2(g)  ΔH = −172.5 kJ [eq. (4)]  2 CO2(g) → 2 CO(g) + O2(g)  ΔH = 566.0 kJ [eq. (2)]  C(diamond) + O2(g) + 2CO(g) → C(graphite) + 3CO2(g)  ΔHrxn=ΣΔHf(products)−ΣΔHf(reactants)  ΔHrxn=[(3 mol CO2)(-393.5 kJ/mol) + (1 mol C(graphite))(0 kJ/mol)] − [(1 mol C(diamond))(0 kJ/mol) + (1 mol O2)(0 kJ/mol) + (2 mol CO(g))(−172.5 kJ/mol)] − [(2 mol CO2)(566.0 kJ/mol)]  ΔHrxn=−2.9 kJ.

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The missing coefficients in the above balanced chemical equation are as follows: 1, 1, 1.

A chemical equation is a symbolic representation of a chemical reaction where reactants are represented on the left, and products on the right.

A chemical equation is said to be balanced when the number of atoms of each element on both sides of the equation are the same.

According to this question, zinc sulphide reacts with hydrogen chloride to produce zinc chloride and hydrogen sulphide as follows:

_ZnS +2HCl → ___ZnCl₂ + ___H₂S

The balanced equation is as follows:

ZnS +2HCl → ZnCl₂ + H₂S

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D, Example 1 represents a solid and Example 2 represents a gas. :)

Answer:

Example 1 represents a solid and Example 2 represents a gas.

Explanation:

The best description of cis-trans isomers is that they differ in their spatial arrangement around inflexible double bonds. Option E is correct.

Specifically, cis-trans isomers are a type of stereoisomers that have the same molecular formula and the same covalent bonds but differ in the spatial arrangement of their atoms due to the inflexibility of a double bond. In cis isomers, the two substituents on each carbon atom are on the same side of the double bond, while in trans isomers, the two substituents on each carbon atom are on opposite sides of the double bond.

This results in different physical and chemical properties for the two isomers. For example, cis and trans isomers of some compounds may have different boiling points, melting points, and reactivities.  Cis-trans isomerism is an important concept in organic chemistry as it affects the properties and behavior of molecules and can have significant implications for their biological activity, environmental fate, and industrial applications. Option E is correct.

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Answer:

i just took the test the correct answer is   "most of them stay green all year"

Explanation:

Answer:

its B :)

Explanation:

cuz im mr beast

Answer:

Ground state

the state with the smallest amount of energy.

Correct question: A tool used for vegetable strainer,it is essential for various tasks from cleaning vegetables to straining pasta or tin contents.

Answer: The tool is called COLANDER.

Explanation:

In the kitchen, there are different types of equipments and utensils which makes work easier and faster. Examples of such equipment/ utensils includes:

--> graters,

--> cutleries ( spoon, fork, knife)

--> colanders

--> Pots

--> Blenders

These utensils are made up of rubber, plastics, wood, ceramics and stainless steel.

A Colander is an important kitchen utensil, a type of strainer with perforated holes. The holes allows fluid to drain leaving behind the solid part. It is usually bowl - shaped. It helps in performing the following roles in the kitchen:

--> cleaning vegetables

--> straining of pasta

--> straining of tin contents

Colanders are usually made of stainless steel, plastics and ceramics.

2.65g/ml is the density of a piece of granite whose volume is 20 mL and mass is 53grams. Density is the mass of a specific material per unit volume.

Density is the mass of a specific material per unit volume. Density is defined as d = M/V, in which d represents density, M is weight, as well as V is volume. Density is generally expressed in grams every cubic centimetre. Water, for example, has a density of 1 gram per square centimeter, but Earth has a density of 5.51 kilograms per cubic centimetre.

Density is sometimes measured in kilos per cubic centimeter (in metre-kilogram-second or SI units). The density of air, for example, is 1.2 kilos per cubic metre. 

density = mass / volume

            =53/ 20

            =2.65g/ml

Therefore, 2.65g/ml is the density of a piece of granite whose volume is 20 mL and mass is 53grams.

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Answer:

Tedious calibration No instrument protocol Operator dependent readings( limited accuracy) Long and difficult thermosetting (water bath is required after each experiment)

Explanation:

hope it helps you

brainliest plz if it helped

Answer:

565.4 K

Explanation:

Remember PV = nRT

630 * 50 =  25/28 * 62.4 T

T = 565.4 kelvin

Answer:

Dublin is warmed by ocean currents.

Explanation:

Got it right on test

Answer:

B.  Dublin is warmed by ocean currents.

Explanation:

Answer:

lungs

Explanation:

The mass (in grams) of sodium carbonate, Na₂CO₃ required to produce 85 grams of barium carbonate, BaCO₃ is 45.7 grams

First, we shall observe the balanced equation to obtain useful information. This is shown below:

Na₂CO₃ + BaSO₄ -> BaCO₃ + Na₂SO₄

From the balanced equation above,

197 g of BaCO₃ were obtained from 106 g of Na₂CO₃

With the above information, we can obtain the mass of sodium carbonate, Na₂CO₃ required to produce 85 grams of barium carbonate, BaCO₃. This is illustrated below:

From the balanced equation above,

197 g of BaCO₃ were obtained from 106 g of Na₂CO₃

Therefore,

85 g of BaCO₃ will be obtain from = (85 × 106) / 197 = 45.7 g of Na₂CO₃

Thus, we can conclude from the above calculation that the mass of sodium carbonate, Na₂CO₃ required is 45.7 grams

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To solve this problem using the gas laws, we need to use the Ideal Gas Law. This law states that the product of the pressure and the volume of a gas is proportional to the absolute temperature.

The equation of the Ideal Gas Law is the following:

\(\boxed{\large\displaystyle\text{$\begin{gathered}\sf \bf{\dfrac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2} } \end{gathered}$} }\)

Where:

We clear for V₂:

\(\boxed{\large\displaystyle\text{$\begin{gathered}\sf \bf{V_2=\frac{P_1V_1T_2}{P_2T_1 } } \end{gathered}$} }\)

Where:

Substituting the known values:

\(\boxed{\large\displaystyle\text{$\begin{gathered}\sf \bf{V_2=\frac{760\not{kPa}\times0.050 \ L\times20.0\not{k} }{ 380\not{kPa}\times10.0\not{k} } } \end{gathered}$} }\)

\(\boxed{\large\displaystyle\text{$\begin{gathered}\sf \bf{V_2=\frac{760 \ L}{3800 } } \end{gathered}$} }\)

\(\boxed{\boxed{\large\displaystyle\text{$\begin{gathered}\sf \bf{V_2\approx0.2 \ Liters} \end{gathered}$} }}\)

Answer:

C. water freezing

Explanation:

The question is incomplete, the complete question is;

Jia observes that adding a solution of sodium hydroxide to a clear liquid turns the liquid pink. She makes a hypothesis about why the liquid changed color.

Which characteristic is least important for her hypothesis to have?

A)ability to be tested

B)based on the opinion of her classmates

C)ability to be proven incorrect

D)based on her current knowledge

Answer:

B)based on the opinion of her classmates

Explanation:

A hypothesis is a supposition or tentative explanation put forward based on minimal evidence. It sometimes sets the pace for further investigation.

Hypothesis is always based on empirical observation and not on popular opinion, hence the opinion of Jia's classmates is least important in Jia's formulation of a hypothesis.

Answer:

B) based on the opinion of her classmates

Explanation:

edge 2023

Answer:

32.2 g of Na will produce 43.4 g of Na2O.

Explanation:

The balanced chemical equation for the reaction between sodium and oxygen shows that 4 moles of sodium react with 1 mole of oxygen to produce 2 moles of sodium oxide:

4Na(s) + O2(g) → 2Na2O(s)

To solve this problem, we can use the following steps:

Step 1: Convert the mass of Na given in the problem to moles using the molar mass of Na.

molar mass of Na = 23 g/mol

moles of Na = mass of Na / molar mass of Na

moles of Na = 32.2 g / 23 g/mol

moles of Na = 1.4 mol

Step 2: Use the mole ratio from the balanced chemical equation to determine the moles of Na2O produced.

From the balanced chemical equation, we can see that 4 moles of Na react to produce 2 moles of Na2O.

moles of Na2O = (moles of Na / 4) x 2

moles of Na2O = (1.4 mol / 4) x 2

moles of Na2O = 0.7 mol

Step 3: Convert the moles of Na2O to grams using the molar mass of Na2O.

molar mass of Na2O = 62 g/mol

mass of Na2O = moles of Na2O x molar mass of Na2O

mass of Na2O = 0.7 mol x 62 g/mol

mass of Na2O = 43.4 g

Therefore, 32.2 g of Na will produce 43.4 g of Na2O.