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3 years ago

. What factors should Margaret NOT consider when deciding how much powder to add to her glass of water?

Chemistry

1 answer:

makkiz [27]3 years ago

7 0

Answer is *color of the solute*

If your answers are: A Nature of the solvent

B Temperature

C Nature of the solute

D Color of the solute

And the explanation is: D Solubility can be affected by the nature of the solute and solvent, temperature, and pressure. The color of the solute is not a factor because it does not affect solubility

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Which base has the lowest ionization constant (Kb)?

inysia [295]

Answer:D.Blood

Explanation:

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3 years ago

The density (g/ml) of 6 pennies with a mass of 18.53 grams and a volume of 2.0 ml

dedylja [7]

Answer: 9.27 g/mL

Explanation:

$d=\frac{m}{v}=\frac{18.53}{2.0}=\boxed{9.27 \text{ g/mL}}$

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2 years ago

What is the final, balanced equation that is formed by combining these two half reactions?

lara31 [8.8K]

Answer: Balanced equation that is formed by combining these two half reactions is $Cu + NO^{-}_{3} + 2H^{+} \rightarrow Cu^{2+} + NO^{-}_{2} + H_{2}O$ .

Explanation:

A chemical equation which contains same number of atoms on both reactant and product side is called a balanced chemical equation.

For example, $Cu \rightarrow Cu^{2+} + 2e^{-}$

$NO^{-}_{3} + 2e^{-} + 2H^{+} \rightarrow NO^{-}_{2} + H_{2}O$

On cancelling the common species from both these half-reactions, the complete balanced equation will be as follows.

$Cu + NO^{-}_{3} + 2H^{+} \rightarrow Cu^{2+} + NO^{-}_{2} + H_{2}O$

Thus, we can conclude that balanced equation that is formed by combining these two half reactions is $Cu + NO^{-}_{3} + 2H^{+} \rightarrow Cu^{2+} + NO^{-}_{2} + H_{2}O$ .

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3 years ago

What can we tell from the column that an element is in?

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Answer:

The number of electrons in the outer energy level

Explanation:

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3 years ago

ХА

kvasek [131]

Answer:

B. Biosphere.

Explanation:

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2 years ago