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mrs_skeptik [129]
3 years ago
10

Do all metals have more electrons than protons

Chemistry
1 answer:
Furkat [3]3 years ago
4 0

Answer:

no

Explanation:

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Antibiotics do not reduce the number of helpful and harmful bacteria in the microbiome.
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false; the purpose of antibiotics is to kill bacteria

Explanation:

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3 years ago
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Why does silver gate tarnish on exposed to air
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when silver articles exposed to air silver racts with Sulphur present in the atmosphere and form a black layer of silver sulphide on the surface. copper articles get tarnished by reacting with air and water. due to this, a layer is formed over copper vessels.

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Consider two solutions, solution a and solution
Ronch [10]
Answer is: solution A has 2,57 time greater pH value than solution B.<span>
</span>Concentration of [H⁺] in solution A is than 370x.
pH = -log[H⁺].
pH(solution A) = -log(370x).
pH(solution b) = -log(x).
pH(solution A) / pH(solution B) = -log(370x) / -log(x).
pH(solution A) / pH(solution B) = 2,57.
5 0
3 years ago
If the volume of a solution is 25.6 L and its molarity is 8.20 M, how many moles of solute are
harkovskaia [24]

Answer:

210 moles

Explanation:

From the question given above, the following data were obtained:

Volume of solution = 25.6 L

Molarity = 8.20 M

Mole of solute =?

Molarity is simply defined as the mole of solute per unit litre of water. Mathematically, it can be expressed as:

Molarity = mole /Volume

With the above formula, the mole of solute dissolved can be obtained as follow:

Volume of solution = 25.6 L

Molarity = 8.20 M

Mole of solute =?

Molarity = mole /Volume

8.20 = mole / 25.6

Cross multiply

Mole = 8.20 × 25.6

Mole = 209.92 ≈ 210 moles

Thus, the mole of solute dissolved in the solution is 210 moles

7 0
2 years ago
During a laboratory experiment 3.81g of NaHCO3 was thermally decomposed to generate 2.86 grams of carbonic acid (H2CO3). Calcula
Eva8 [605]

Answer:

H2CO3

Explanation:

tahts hard hope u find the answer :)

4 0
2 years ago
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