The change in an object's volume that occurs when heat is added is called

2 answers:

6 0

A -thermal expansion for example if your straitening your hair it gets bigger and seems longer rather then having it regular you can see the difference because of heat transfer in the hair so it is thermal expansion.

Sidana [21]3 years ago

4 0

Thermal expansion because heating something causes the object to expand. <span />

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How does a change in the temperature of the boiling point indicate that a chemical reaction has occurred?

Elodia [21]

Answer:

A change in temperature is characteristic of a chemical change. ... If temperature increases, as it does in most reactions, a chemical change is likely to be occurring. This is different from the physical temperature change. During a physical temperature change, one substance, such as water is being heated.

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3 years ago

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rewona [7]

Answer:

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Explanation:

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nata0808 [166]

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Identify the compound that has the same structure as sodium chloride. identify the compound that has the same structure as sodiu

olga_2 [115]

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4 years ago

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Ivahew [28]

Answer:

$Mg(s) + HCl(aq) \rightarrow MgCl_2(aq) + H_2(g)$

$MgO(s) + HCl(aq) \rightarrow MgCl_2(aq) + H_2O(l)$

Explanation:

When Mg reacts with HCl, magnesium chloride and hydrogen is formed. Mg is an active element and displaces hydrogen from HCl. So, this is a type of single displacement reaction.

$Mg(s) + HCl(aq) \rightarrow MgCl_2(aq) + H_2(g)$

When magnesium oxide (MgO) reacts with HCl, magnesium chloride and water is formed. This reaction is a type of neutralization reaction. MgO is a water insoluble base and HCl is acid. So. in this reaction, acid reacts with base to form salt $MgCl_2$

$MgO(s) + HCl(aq) \rightarrow MgCl_2(aq) + H_2O(l)$

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4 years ago