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Greeley [361]
3 years ago
6

The density of an object is

Chemistry
1 answer:
uysha [10]3 years ago
5 0

Answer:

Density is a measure of mass per unit of volume. Density is a measure of mass per volume. The average density of an object equals its total mass divided by its total volume.

I hope it helps.

Have a great day.

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0.0278, how many significant figures
My name is Ann [436]

Answer:

There are three significant figures

Explanation:

When counting sig figs you don't count the zeros unless it is between a number greater than zero. The two zeros aren't between the greater numbers so there are only 3.

3 0
3 years ago
10. Which best explains why the total mass of the product(s) would be less than the total weight of the
Olegator [25]

Answer:

D. Gases were released to the atmosphere

Explanation:

In accordance to the law of conservation of mass, the total amount of reactants must equate the total amount of products at the end of the reaction because matter can not be lost or created. However, certain changes like gas evolution, formation of precipitate etc. indicates the occurrence of a chemical reaction.

In a chemical reaction, the total mass of the product(s) would be less than the total weight of the reactant(s) because GASES, which constituted part of the mass of the reaction, WERE RELEASED INTO THE ATMOSPHERE. However, if the mass of the gas released can be accounted for, the amount of reactants and products must balance.

4 0
2 years ago
The solvent in a solution evaporates out over time, leaving behind the solute.
Andrews [41]

Answer:

When a solution is heated, the solvent evaporates, leaving behind the dissolved solids as residue. When a solution containing dissolved solutes is heated, the solvent will evaporate.

Explanation:

. P.S. Evaporation to dryness cannot be use for solutions like sugar solution because the sugar will decompose upon heating.

3 0
3 years ago
What part of the microscope is the letter k?
snow_tiger [21]

Answer:

if you are asking k then the round one is condenser

if not then its a stage clip

6 0
3 years ago
Which best explains how heat plays a role in the movement of materials within Earth's interior?
vfiekz [6]

Answer:

Hot material near the core is less dense and rises, when it cools, it becomes more dense and sinks.

Explanation:

This best explains how heat plays a role in the movement of materials within Earth's interior because it's how convection works. Convection is the circular motion that happens when warmer air or liquid which has faster moving molecules, making it less dense rises, while the cooler air or liquid drops down. Convection currents within the earth move layers of magma, and convection in the ocean creates currents.

3 0
3 years ago
Read 2 more answers
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