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DIA [1.3K]
3 years ago
12

Select all that apply. When the products of a reaction have more energy than the reactants: The reaction is endothermic. The rea

ction is exothermic. The reactants gave up energy.
Chemistry
1 answer:
kirill [66]3 years ago
3 0

Answer:

the reaction is exothermic

Explanation:

heat will be produced from the reaction

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Which statement is true about a reaction represented by a chemical equation that shows energy as a reactant?
vovikov84 [41]
A. It absorbs energy.
reactants are located on the left side of the equation, meaning energy among with other reactants were needed to get the reaction going, so it absorbed energy, which is also the endothermic process. The opposite of that would be having energy on the right side with the products which means that the reaction would've released energy which is the exothermic process. Hope this helps!
5 0
3 years ago
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If a solid has a density of 4.0 g/cm^3, what volume of the solid has a mass<br> of 24 g? Show work.
Mrrafil [7]

Answer:

<h2>Volume = 6 cm³</h2>

Explanation:

Density of a substance is given by

Density =  \frac{mass}{volume}

From the question

Density = 4.0 g/cm³

mass = 24g

Substitute the values into the above formula and solve for the volume

That's

4 =  \frac{24}{v}  \\4v = 24

Divide both sides by 4

v = 6

We have the final answer as

<h3>Volume = 6 cm³</h3>

Hope this helps you

8 0
3 years ago
Describe what happens to the mass number and the atomic number of a nuclide during alpha decay.
Digiron [165]

Answer:

The answer to your question is: The mass number will be 4 units lower.

Explanation:

Alpha particles are Helium atoms, which have a mass number of 4 and atomic number of 2.

When an alpha particle is released, the original atom loses 2 protons and and 2 neutrons an we can see in the example.

                             ²²⁶ ₈₈ Ra  ⇒   ²²² ₈₆ Rn   +   ⁴₂ He

3 0
3 years ago
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Can someone please answer the question, <br>What is heat?​
Levart [38]

Answer:

hot

Explanation:

6 0
3 years ago
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A target is shielded from a radioactive sample by a sheet of metal. What kind of radiation can pass through the sheet of metal a
weeeeeb [17]

A. o. I know gamma can I Hope this helps


A now i remember yeah gamma only

4 0
3 years ago
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