1. The number of electrons in the atom is 3.
The atom is not stable because the proton and neutron ratio is greater than 1.5
2. The gas produced is considered evidence that a chemical reaction occurred because it is a new product.
3. The graduated cylinder measures the volume of water, the electronic balance measures the mass of water, and the density of water is obtained from the ratio of the mass and volume of water measured.
<h3>What are protons and neutrons?</h3>
Protons are the sub-atomic particles found in the nucleus of atoms that are positively charged. The proton number is equal to the electron in neutral atoms.
Neutrons are the sub-atomic particles found in the nucleus of atoms that are neutral or possess no charge.
The ratio of the protons and neutrons given stability to the atom of its is is not greater than 1.5
Learn more about protons and neutrons at: brainly.com/question/338808
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Answer:
Heat causes the molecules to move faster (heat energy is converted to kinetic energy), which means that the volume of a solid or a liquid. ... The particles in the air do not have more kinetic energy than particles in the mercury, because they are the same.
Explanation:
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Yo sup??
one mole of H2 reacts with half mole O2
therefore 5 moles will react with
=5*0.5
=2.5 mole
Hence the correct answer is option C
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Answer:
oxygen-13 oxygen-14
Explanation:
there are several radioactive