3 years ago

Which one is the answer?

Chemistry

2 answers:

Amanda [17]3 years ago

5 0

Answer:

I think a light bulb

Explanation:

please I need brainlist

olga2289 [7]3 years ago

3 0

Answer:

I think 1, 4, and 5 are the answers to this question. I am not sure about 4 though.

Explanation:

You have to have a power source (1), you also have to have a way to get that power somewhere else (5), and the reason for 4 would be that the power has to come back through the power source to remain working.

You might be interested in

MgSO4 x 7H2O:

natka813 [3]

Answer:In regards to writing the formula, we know that magnesium has a charge of 1+ and sulfate, SO4, has a charge of 1-. Sulfate is a polyatomic ion so the charge of the whole thing is (SO4)1-. When you combine them you end up with MgSO4 and the "heptahydrate" is seven water molecules.

Explanation:

5 0

3 years ago

Read 2 more answers

3. Round 87.073 meters to three significant figures. Write your answer in scientific notation. Step 1: 87.073 rounds to _______

Nat2105 [25]

Answer:

see below

Explanation:

3. 87.073 meters to three significant figures.

= 87.1 meters

2. Write the number in scientific notation. _____meters