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3 years ago

6

What is number in front of a chemical formula in an equation that indicates how many molecules or atoms of each reactant and pro

duct are involved in a reaction

2 answers:

yulyashka [42]3 years ago

7 0

Your answer is going to be "coefficient"

i took the test, hope i helped! :)

lana66690 [7]3 years ago

7 0

Coeffeciant will be the answer to this !

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potassium, k, has an atomic number of 19 and an atomic mass of 39 how many electrons does a neutral atom of K have?

coldgirl [10]

A neutral atom of potassium has 19 electrons.

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3 years ago

Stable nuclei with low atomic numbers, up to 20, have a neutron to proton ratio of approximately ________.

Pie

1 to 1. Most small atoms have the same number of protons and neutrons

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3 years ago

Help on 2 and 3 due tomorrow pls help

Luda [366]

Answer:

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b= they are grouped differently, but all the atoms are still there.

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2 years ago

The molar solubility of silver bromide, AgBr in pure water is 0.0007350 mol/L. What is the

gayaneshka [121]

Answer:

0.000000540

Explanation:

Step 1: Make an ICE chart for the solution of AgBr

"S" represents the molar solubility of AgBr

AgBr(s) ⇄ Ag⁺(aq) + Br⁻(aq)

I 0 0

C +S +S

E S S

Step 2: Write the expression for the solubility product constant (Ksp)

Ksp = [Ag⁺] [Br⁻] = S × S

Ksp = S² = (0.0007350)² = 0.000000540

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2 years ago

What chemical reactions occur in a Nelson's cell?

Cerrena [4.2K]

Explanation:

The graphite anodes are suspended into the brine. During electrolysis, Cl ions are oxidized at the anode and chlorine gas goes out of the cell, while sodium ions are reduced at the mercury cathode forming sodium amalgam. ... Hydrogen gas is obtained as a by–product at the cathode.

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1 year ago