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solong [7]
2 years ago
10

What is the definition of specific heat?

Chemistry
1 answer:
Varvara68 [4.7K]2 years ago
7 0

Answer:

A. The heat needed to raise the temperature of 1 g of a substance 1°C.

Explanation:

how this has helped you

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A covalent bond is your answer
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3 years ago
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What is the percent composition by mass of sulfur in the compound mgso4
Margaret [11]

Answer:

26.7% is the percent composition by mass of sulfur in a compound named magnesium sulfate.

Explanation:

Molar mass of compound = 120 g/mol

Number of sulfur atom = 1

Atomic mass of sulfur = 32 g/mol

Percentage of element in compound :

=\frac{\text{Number of atoms}\times \text{Atomic mass}}{\text{molar mas of compound}}\times 100

Sulfur :

=\frac{1\times 32 g/mol}{120 g/mol}\times 100=26.7\%

26.7% is the percent composition by mass of sulfur in a compound named magnesium sulfate.

6 0
3 years ago
A bottle contains 158.1 grams of lead (II) sulfate (PbSO4), used for car batteries. How many moles does it contain?
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2 years ago
What do the molecules do when they gain more kinetic energy and how does that affect the density?
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The more kinetic energy a substance has, the warmer it will be and the faster particles will be moving, which reduces the density of the substance

3 0
3 years ago
Urgent!!
madam [21]

Answer:

Harmony is correct, because Mendeleev’s model made predictions that came true.

Explanation:

Mendeleev published periodic table.

Mendeleev also arranged the elements known at the time in order of relative atomic mass, but he did some other things that made his table much more successful.

Our answer is : Harmony is correct, because Mendeleev’s model made predictions that came true.

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