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Anna007 [38]
2 years ago
8

Which of the following would be considered an Exothermic Reaction?*

Chemistry
1 answer:
Digiron [165]2 years ago
6 0

Answer:

Burning wood

Explanation:

the fire releases heat into the air from the burning wood

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How does beta decay affect the atomic number?
MA_775_DIABLO [31]
The atomic mass number does<span> not change because a </span>beta<span> particle has a much smaller </span>mass<span> than the </span>atom<span>. The </span>atomic number<span> goes up because a neutron has turned into an extra proton. </span>Beta decay<span> is fundamentally different from alpha </span>decay<span>. An alpha particle is made of two protons and two neutrons.</span>
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When the number of protons and electrons are the same the atom is
belka [17]

A.)Neutral. Since amount of protons and electron are equal and amount of protons cannot be changed so it is stable or neutral.

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Which of the following elements would most likely form an ion with a +2 charge?
julsineya [31]

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7 0
2 years ago
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what mass of carbon dioxide gas would be produced if 10g of calcium carbonate reacted with an excess of hydrochloric acid?
LuckyWell [14K]
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m(CaCO₃) = 10 g.
n(CaCO₃) = 10 g ÷ 100 g/mol.
n(CaCO₃) = 0,1 mol.
From chemical reaction: n(CaCO₃) : n(CO₂) = 1 : 1.
n(CO₂) = 0,1 mol.
m(CO₂) = n(CO₂) · M(CO₂).
m(CO₂) = 0,1 mol· 44 g/mol.
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3 years ago
PLEASE HELP BRAINLIEST AND 15 points.
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Answer:

Substance B, boiling point of 105 °C

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Non volatile substances have high boiling points

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