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RoseWind [281]
2 years ago
8

GIVING BRAINLY, 5 STARS, FOLLOW AND HEARTSas majority of substances heat up, they:​

Chemistry
1 answer:
melamori03 [73]2 years ago
3 0

Answer:

Expand

Explanation:

When you heat up a substance it expands

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What do a mole of magnesium (Mg) and a mole of iron (Fe) have in common?
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What they have in common is that they both have the same number of atoms.
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How does elements and compounds reacting together is essential in everyday matters?
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3 years ago
Which element am I? Give my symbol ONLY! What a robber says as he's running away! ​
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Read 2 more answers
WILL GIVE BRAINLIEST
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For the first one, you have to find one that has both a metal and a nonmetal in it, plus potassium. Bonds between nonmetals are called covalent because they share electrons and a bond between a metal and a nonmetal is an ionic bond because they exchange electrons.

Potassium chloride is KCl. Only an ionic bond.

Potassium hydride is KH. Only an ionic bond.

Potassium nitrate is KNO3. There we go, that has a covalent bond between the nitrogen and oxygen, and an ionic bond between potassium and the nitrogen and oxygen.

For the second one, potassium chloride is the answer because the other three also have covalent bonds. Chloride is the only one that isn't a compound.

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It’s a combustion reaction but what are you trying to find?
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