In a solution the substance that does the dissolving is called blank?

What are the advantages and disadvantages of using an egg to model organelles in an animal c of using an egg to model organelles

aleksandrvk [35]

I think its because an egg doesnt have the right chemical make up

7 0

3 years ago

The spontaneous reaction that occurs when the cell in the picture operates is as follows: 2Ag+ + Cd(s) ???? 2 Ag(s) + Cd2+ (A) V

Snowcat [4.5K]

Answer:

14. B 15. D 16. C 17. B

Explanation:

The spontaneous reaction that occurs when the cell operates is shown below:

$2Ag^{+} + Cd_{(s)}$ ⇒ $2Ag_{(s)} + Cd^{2+}$

We need to select the correct option from the list below for the following questions.

(A) Voltage increases. (B) Voltage decreases but remains > zero. (C) Voltage becomes zero and remains at zero. (D) No change in voltage occurs. (E) Direction of voltage change cannot be predicted without additional information.

14. A 50-milliliter sample of a 2-molar $Cd(NO_{3})_{2}$ solution is added to the left beaker.

If a 50-milliliter sample of a 2-molar $Cd(NO_{3})_{2}$ solution is added to the left beaker, the voltage decreases but its value remains greater than zero. The correct option is B

15. The silver electrode is made larger.

If the silver electrode is made larger, no change in the value of the voltage since we don't have the idea of the initial value. The correct option is D.

16. The salt bridge is replaced by a platinum wire.

If the salt bridge is replaced by a platinum wire, there will be no passage of electrons because electrons can't pass through a platinum wire. Therefore, the voltage will be zero and remains at zero. The correct option is C.

17. Current is allowed to flow for 5 minutes.

If current is allowed to flow for 5 minutes, the voltage decreases but its value remains greater than zero. The correct option is B.

7 0

4 years ago

An archer shot a 0.06 kg arrow at a target. The arrow accelerated at 5,000 m/s/s to reach a speed of 50.0 m/s as it left the bow

nordsb [41]

<h3><u>Answer;</u></h3>

C. 300 N

<h3><u>Explanation</u>;</h3>

From Newton second's Law of motion, the resultant force is directly proportional to the rate of change in momentum.

Therefore;

F = ma ; where F is the resultant force, m is the mass and a is the acceleration.

Therefore;

F = 0.06 kg × 5,000 m/s/s

<u>= 300 N</u>

8 0

3 years ago

When a kettle is placed on the stove and water begins to boil, the hotter water at the bottom begins to rise and the cooler wate

melisa1 [442]

I think the correct answer from the choices listed above is option A. The fact that we know about the relationship between the hotter water and the cooler water would be that the <span> hotter water is less dense. Hope this answers the question. Have a nice day.</span>

3 0

3 years ago

Read 2 more answers

3. Differentiate between saturated and unsaturated fats

Ket [755]

Answer:

Fats that are tightly packed with no double bonds between the fatty acids are called saturated fats.

Explanation:

6 0

3 years ago