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Dominik [7]
3 years ago
5

Why must humans find substitutes for many minerals found on Earth? (A) form at an extremely slow rate (B) controlled by other co

untries (C) too deep in the Earth to collect
Chemistry
1 answer:
DochEvi [55]3 years ago
3 0

The correct answer is C, too deep in the Earth to collect. Hope this helps!

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Choose the correct statement. The cathode is the electrode where the oxidation takes place. Both oxidation and reduction may tak
gregori [183]

Answer:

The cathode is the electrode where the reduction takes place.

Explanation:

Cell has three components:

an electrolyte and two electrodes which is a cathode and an anode.

Electrolyte is usually solution of the water or other solvents in which the ions are dissolved.

<u>In electrolytic cell:</u>

Negatively charged electrode is the cathode where the process of reduction takes place.

Positively charged electrode is the anode where the process of oxidation takes place.

<u>In galvanic cell:</u>

Positively charged electrode is the cathode where the process of reduction takes place.

Negatively charged electrode is the anode where the process of oxidation takes place.

<u>So, the correct answer is - The cathode is the electrode where the reduction takes place.</u>

6 0
3 years ago
Give two reasons why quarrying is bad for the enviroment
Elza [17]
Air & noise pollution
Quarry waste
Damage to biodiversity
6 0
3 years ago
Which event is caused by gravity?​
Oxana [17]

Answer:

C

Explanation:

Cause waves causes gravity to make higher waves

6 0
3 years ago
What happens to a glass of sugar solution when sugar is added to it?
galina1969 [7]

Answer:

The molarity of the solution increases.

Explanation:

Molarity is the measure of the concentration of the solute in the solution. In this case, the solvent is the sugar solution and the solute is the sugar.

If sugar is ADDED to the already sugary solution, then there would be more sugar. Therefore, the sugar (solute) would increase in number.

This means that the answer is the third choice: The molarity of the solution increases.

The answer would not be the first or second choice because there isn't anything in the question that implies water. It just says sugar solution.

The answer is not the last choice because the sugar concentration does not decrease after you have added more sugar to it. It increases.

7 0
3 years ago
Read 2 more answers
Which of the following correctly describes the relationship between speed and velocity?
rodikova [14]
Speed and velocity is a scalar and vector quantity of a similar parameter, respectively. They both refer to how fast an object moves. However, the speed only has to do with the magnitude. The velocity takes into account the sign which indicates the direction of the movement. For example, the value is -5 m/s. The speed is 5 m/s, but the velocity is 5 m/s moving downwards because the negative sign denotes downward movement or movement to the left.
4 0
3 years ago
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