Question

An atom has three protons and one neutron in its nucleus. How many electrons will it have; if it is a stable atom? How do you know?
When you combine vinegar and baking soda, a gas is produced. Why is the gas considered evidence that a chemical reaction occurred?



How can you use a graduated cylinder, water, and an electronic balance to find the density of water?

Please answer all 3
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Answer 1

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.

What are protons and neutrons?

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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