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katovenus [111]
4 years ago
14

What do all of these molecules have in common?

Chemistry
2 answers:
Leni [432]4 years ago
8 0
The answer is B) they store energy.
The answer isn't C because there are also molecules in water. The answer isn't D because molecules are not ONLY found in living things, in fact they are found in everything.
kherson [118]4 years ago
5 0
B they store energy.
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Using noble gas notation write the electron configuration for the chromium(II) ion
zzz [600]
Since chromium has 24 as its atomic number (which mean that it has 24 proton and 24 electron in neutral ground state), the electron configuration for the chromium would be :

1s^2 , 2s^2 , 2p^6 , 3s^2, 3p^6 , 3d^5 , 4s^1
6 0
3 years ago
1 It was found that 4n atoms of metal x
raketka [301]

Answer:

C 108

Explanation:

1 It was found that 4n atoms of metal x

weigh 501.6 g. The relative atomic mass

of X is 209. If n atoms of another metal,

Y, weigh 65.00 g, what is the relative

atomic mass of metal Y?

A 27 B 52 C 108 D 137

if 4n atoms of x weigh 501.6 gm, the n atoms weigh 501.6/4 = 125.4 gms

since the atomic mass is 209, then 6.022 X10^23 atom weigh 209

the ratio of 125.4 to 209 is

125.4/Y =0.6

therefor n is the number of atom in 0.6 moles

if metal Y has the same, number of atoms "n"  and weighs 65 gm

then then the relative atomic mass is

65/0.6 =108

so the answer is

C 108

7 0
3 years ago
Why are lightning formed in clouds?
VladimirAG [237]

Explanation:

Because opposites attract, the negative charge at the bottom of the storm cloud wants to link up with the ground’s positive charge. Once the negative charge at the bottom of the cloud gets large enough, a flow of negative charge called a stepped leader rushes toward the Earth. The positive charges at the ground are attracted to the stepped leader, so positive charge flows upward from the ground. When the stepped leader and the positive charge meet, a strong electric current carries positive charge up into the cloud. This electric current is known as the return stroke. We see it as the bright flash of a lightning bolt.

Thunder and lightning occur at roughly the same time although you see the flash of lightning before you hear the thunder. This is because light travels much faster than sound

3 0
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What is the most basic building block of matter?
Viefleur [7K]
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