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larisa86 [58]
3 years ago
13

Who was the first person to propose that atoms existed?

Chemistry
2 answers:
Gennadij [26K]3 years ago
8 0
Democritus was the first person to theorize the existence of atoms.
levacccp [35]3 years ago
7 0

Remember we are just talking about proposals, not actual evidence. So it would be Democritus.

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Molarity, chemistry general chemistry
Anna007 [38]

Answer:

a. 0.026 M

Explanation:

Molarity is a measure of the molar concentration of a solution. It can be calculated by using the following formula:

Molarity = n/V

Where;

n = number of moles (mol)

V = Volume of solution (L)

Based on the information provided;

V = 23.2mL = 23.2/1000 = 0.0232 L

n = ?

To get the number of moles of KHP, we use the formula:

mole = mass/molar mass

mole (n) = 0.123/204.2

mole (n) = 0.0006024mol

Molarity = n/V

Molarity = 0.0006024 ÷ 0.0232

Molarity = 6.024 × 10^-4 ÷ 2.32 × 10^-2

Molarity = 6.024/2.32 × 10^(-4--2)

Molarity = 2.59 × 10^-2

Molarity = 0.026 M

4 0
3 years ago
The _______ are found on the left side of the arrow in a chemical reaction. A. coefficients B. reactants C. products D. subscrip
nika2105 [10]
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4 0
4 years ago
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Which of the following liquids does NOT turn anhydrous Copper ii sulfate blue?
lawyer [7]

Answer:A

Explanation:

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5 0
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Which scientist is credited with early, quantitative data on redox reactions?
boyakko [2]

Answer:

German chemist G.E. Stahl

Explanation:

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1. Which of the following is a typical characteristic of ionic solids?
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