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Lunna [17]
3 years ago
13

Answer please I don’t understand number 12

Chemistry
2 answers:
yan [13]3 years ago
5 0
The density is mass divided by volume
Rudiy273 years ago
5 0

You calculate the density of a substance by dividing its mass by its volume.

Density = mass/volume

For example, if a rock has a mass of 45 g and a volume of 15 cm^3, its density is

Density = 45 g/15 cm^3 = <em>3.0 g/cm^3 </em>


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A neutron has neither a negative or positive charge, it’s neutral
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3 years ago
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A 2.83 g piece of zinc (density = 7.14 g/ml) is added to a graduated cylinder that contains 12.13 ml H2O. What will be the final
Maslowich

The final volume reading on the graduated cylinder is 12.52ml

Density = mass / volume

Volume = mass / density

Volume of zinc = 2.83/7.14

Volume of zinc = 0.3963

Initial volume = 12.13 ml

Total volume = initial volume+ volume of zinc

Total volume = 12.13 + 0.3963

Total volume = 12.5263 = 12.52 ml

To know more about volume to go the given link :

brainly.com/question/11510153

3 0
1 year ago
Based on the diagram below, which would have the most inertia?
jeka94

Answer:

The sphere on the left has the most inertia because it has more mass.

Explanation:

Inertia is a property of matter of a substance.

According to Newton's first law of motion, a body continues to stay in the state of rest or constant velocity unless acted upon a external force.

The amount of inertia that an object possess is proportional to the mass of the object.

The sphere on the left is of 300 kg and that on the right is of 30 kg.

Clearly, the sphere on the left has more mass.

Therefore, the sphere on the left has the most inertia.

6 0
3 years ago
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What is a redox reaction?
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An oxidation-reduction (redox<span>) </span>reaction<span> is a type of chemical </span>reaction<span> that involves a transfer of electrons between two species. An </span>oxidation<span>-reduction </span>reaction<span> is any chemical </span>reaction<span> in which the </span>oxidation<span> number of a molecule, atom, or ion changes by gaining or losing an electron</span>
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Which process maintains homeostasis by replacing cells that die or get damaged? A. Cell division B. Cell respiration C. Exceptio
aleksandr82 [10.1K]

Answer:

Cell division

Explanation:

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  • These new cells are necessary to replace old cells that die in the organism, or to repair damage to the body.
7 0
3 years ago
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