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iVinArrow [24]
2 years ago
13

Energy is needed to break bonds in chemical reactions

Chemistry
1 answer:
NeX [460]2 years ago
7 0

Answer:

This is True

Explanation:

When a chemical reaction occurs, molecular bonds are broken and other bonds are formed to make different molecules. For example, the bonds of two water molecules are broken to form hydrogen and oxygen. Energy is always required to break a bond, which is known as bond energy.

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B. a chemical reactions that occurs in the chloroplast of a plant.

Explanation:

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Lithium β is a solid phase of lithium still unknown to science. The only difference between it and ordinary lithium is that Lith
pychu [463]

Answer:

The density of Lithium β is 0.5798 g/cm³

Explanation:

For a face centered cubic (FCC) structure, there are total number of 4 atoms in the unit cell.

we need to calculate the mass of these atoms because density is mass per unit volume.

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Then we calculate the mass of four atoms;

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⇒next, we estimate the volume of the unit cell in cubic centimeter

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Density = mass/volume

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3 years ago
How does the law of conservation of mass apply to this reaction: Mg + HCl → H2 + MgCl2?
erastova [34]

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ok what does this mean?

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