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nikklg [1K]
3 years ago
10

water (H2O) and carbon dioxide (CO2) are similar because they both contain at least one oxygen A.) atom. B.) mixture C.) molecul

e. D.) compound.
Chemistry
2 answers:
garri49 [273]3 years ago
7 0

Answer:

Atom

Explanation:

The formula of carbon dioxide tells us that in each carbon dioxide molecule, there is a carbon atom bonded to two oxygen atoms. The formula of water tells us that in each water molecule, there are two hydrogen atoms bonded to one oxygen atom.

vova2212 [387]3 years ago
5 0

Answer:

a

Explanation:

it is A because h20 and c02 are molecules while what make them up are atoms

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Abbreviation for mole
Sedbober [7]

Answer:

Maybe mol

Explanation:

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3 years ago
Identify the spectator ions in this reaction. Check all that apply.
balandron [24]
CN, LI are the only two
4 0
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The diagram shows the potential energy changes for a reaction pathway.
Nitella [24]

1) To find the change in enthalpy, determine the difference between the potential energy of the products and the potential energy of the reactants. (on this diagram, C-A) To find the activation energy, find the difference between the potential energy of the reactants and the "peak" of the curve (on this diagram, B-A). For this diagram, both the enthalpy and activation energy are positive.

2) If the reaction was exothermic, enthalpy would be negative, and the potential energy of the reactants would be greater than the potential energy of the products.

3 0
1 year ago
Two substances A and B, initially at different temperatures, are thermally isolated from their surroundings and allowed to come
Elden [556K]

Answer:

B

Explanation:

For solving this we need a heat balance

Q_{a} = Q_{b}\\m_{a}*C_{a}*\Delta T_{a} = m_{b}*C_{b}*\Delta T_{b}

By changing the corresponding relations, we have

m_{a}*C_{a}*\Delta T_{a} = \frac{1}{2}m_{a}*4C_{a}*\Delta T_{b} \\\\\\

By cancelling similar factor, we obtain

\Delta T_{a} = 2 \Delta T_{b}\\\frac{\Delta T_{a}}{\Delta T_{b}} = 2\\

Which means that the change of temperature in A is twice the change of B

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3 years ago
What is the difference between the small and large intestines?
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