All categories

2 years ago

Help its due soon i need to get this right to pass the class

Chemistry

2 answers:

Vladimir79 [104]2 years ago

5 0

Answer: A

Explanation: Because the way that a generator works is moving electric current around a wire and using magnets to make more energy.

Igoryamba2 years ago

4 0

Answer:

the answer I am pretty sure is A

Explanation:

Because the way that a generator works is moving electric current around a wire and using magnets to make more energy. please tell me if I am wrong.

You might be interested in

How much time would it take to distribute one avagadro's number of wheat grains if 10^10 grains are A)1.9*10^2 years B)1.9*10^10

Makovka662 [10]

Answer:

It takes 1.9 $\times 10^{6}$ years to distribute all the grains.

Explanation:

In one second, $10^{10}$ grains of wheat are distributed.

We are supposed to find the time it would take to Distribute Avogadro number of grains.

1 avogadro number = 6.022 $\times 10^{23}$

Number of grains distributed in 1 day = 86400 $\times 10^{10}$

= 8.64 $\times 10^{14}$

Number of grains distributed in 1 year= 8.64 $\times 10^{14} \times 365$

= 3.1536 $\times 10^{17}$

Time taken = $\frac{Number of grains to be distributed}{grains distributed in 1 year}$

= $\frac {6.022 \times 10^{23}}{3.1536\times 10^{17}}$

= 1.9 $\times 10^{6}$

7 0

3 years ago

PLS HELP: CHEMISTRY

user100 [1]

Answer:

3.59x10^21 molecules

Explanation:

1mole of a substance contains 6.02x10^23 molecules.

Therefore, 1mole of C8H18 will also contain 6.02x10^23 molecules

1mole of C8H18 = (12x8) +(18x1) = 96 + 18 = 114g.

1mole (i.e 114g) oh C8H18 contains 6.02x10^23 molecules.

Therefore, 0.68g of C8H18 will contain = (0.68 x 6.02x10^23)/114 = 3.59x10^21 molecules

7 0

2 years ago

Which of the following is the best evidence for a chemical reaction?

alisha [4.7K]

C. Formation of a new substance

5 0

3 years ago

Corinne uses a model rocket in her physical science class. The rocket begins its trip traveling vertically at 22 m s . It reache

dezoksy [38]

The answer is D have a good day

8 0

2 years ago

Read 2 more answers

10 Points! Which type of fossil is formed when a rock hardens inside a mold fossil?

irina [24]

Answer:

I'm sure it's option A. Cast Fossil

3 0

3 years ago