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Setler [38]
3 years ago
9

Given the reaction:

Chemistry
2 answers:
Nadusha1986 [10]3 years ago
8 0
Your answer will be B 
Archy [21]3 years ago
7 0
The answer is 12. <span>Al4C3 + 12 H2O = 4 Al(OH)3 + 3 CH<span>4</span></span>
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How does the automatic hammer convert gravitational potential energy into kinetic energy?
Nutka1998 [239]

Answer:

Exolaiend in explanation section

Explanation:

First of all, the automatic hammer is used to drive nails into tight spaces where where we can't get a sufficient striking force if we are to use a normal regular hammer in driving the nail.

So the nail to be driven is lifted out of rest(it's position). The energy here is gravitational potential energy.

Now, when it is driven into the tight spaces, the gravitational energy would be converted to kinetic energy due to the motion and speed involved.

8 0
3 years ago
If the density of a liquid is 5 g/mL and the mass is 65 g, what would the volume be?
Katyanochek1 [597]

Answer:

Volume would be 13

Explanation:

Divide the mass by the density

65/5

5 0
3 years ago
Read 2 more answers
Two elements in the same period have the same number of _____ _____ in their electron clouds.
shutvik [7]

Answer:

outer electrons

Explanation:

3 0
3 years ago
Read 2 more answers
This is the question i need help on
mash [69]
I thank that your answer is C.
8 0
3 years ago
Identify the correct descriptions of beta particles.
FrozenT [24]

Answer:

a. A beta particle has a negative charge. d. A beta particle is a high-energy electron.

Explanation:

Identify the correct descriptions of beta particles.

a. A beta particle has a negative charge. YES. A beta particle is originated in the following nuclear reaction: ¹₀n ⇒ ¹₁H + ⁰₋₁e (beta particle.)

b. A beta particle contains neutrons. NO. It is a electron originated in the nucleus.

c. A beta particle is less massive than a gamma ray. NO. Gamma rays don't have mass while a beta particle has a mass which is half of one thousandth of the mass of a proton.

d. A beta particle is a high-energy electron. YES. Beta particles are nuclear originated hig-energy electrons.

6 0
2 years ago
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