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Sav [38]
3 years ago
13

Which statement describes the masses of the particles that make up an atom?

Chemistry
1 answer:
Novay_Z [31]3 years ago
6 0
The mass of the atom is equal to the sum of the number of protons and the number of neutrons. In a neutral atom, the number of protons is equal to the number of electrons.  The atomic number meanwhile of an atom is equal to the number of protons of the atom.
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In the reaction between a crushed antacid tablet and vinegar what gas is emitted
Pachacha [2.7K]

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Neutralization is is reaction in which an acid (in this example vinegar or acetic acid CH₃COOH) and a base (in this example soda)

Balanced chemical reaction of vinegar and antacid:

CH₃COOH(aq) + NaHCO₃(aq) → CH₃COONa(aq) + H₂O(l) + CO₂(g).

Sodium acetate (CH₃COONa) is a salt.

Sodium bicarbonate (NaHCO₃) is an antacid. Sodium bicarbonate is the active ingredient in baking soda.

4 0
3 years ago
2. What group is Ballardium located? (Bu) *
elena-14-01-66 [18.8K]

Answer:

This question appears incomplete

Explanation:

There is no such element known as "Ballardium (Bu)" in the periodic table. However, there are elements with a bit of similarity in spellings and pronunciation such as Beryllium (Be) which is found in group 2 (meaning it is an alkali earth metal), Berkelium (Bk) which is an actinide (meaning it is radioactive) and Vanadium (V) which is found in group 5 of the periodic table (meaning it's a transition metal).

5 0
3 years ago
What important result did Becquerel observe when he placed the uranium salt crystals and unexposed photographic film in a drawer
nexus9112 [7]
<span>B) The crystals did not phosphoresce within the drawer but did expose the film</span>
4 0
3 years ago
Read 2 more answers
Calculate the mass of 1.00 mol of each of these substances
bogdanovich [222]
What are the substances?
7 0
4 years ago
What is the molarity of a solution in which 175.8<br> grams of NaCl is dissolved in 1.5 L of water?
Sophie [7]
175.8 g NaCl to moles:
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Molarity = moles of solute/volume of solution in liters

(3.008 mol NaCl)/(1.5 L) = 2.0 M.

The molarity of this solution would be 2.0 M.
8 0
2 years ago
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