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makkiz [27]
3 years ago
6

I need help with number 4 I mean k think I'm right

Chemistry
1 answer:
adell [148]3 years ago
5 0
Its b because it explains it better than a waterfall does
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What's the charge on Ni in the compound NiCi3? *
ss7ja [257]

Answer:

+3

Explanation:

Chlorine is anion with a -1 charge. But they are three chlorine atoms.

-1 * 3 = -3

So they have a -3 charge.

So to balance the compound, the nickel has to be a cation with a +3 charge.

-3 + 3 = 0

Furthermore, a chemical bond always has a 0 charge. Remember that.

Hope it helped! Rate my answer a 5 star if correct.

8 0
2 years ago
Which statements would be expected to be true for Organesson? Select all that apply.
NISA [10]

Answer:It has the lowest effective nuclear charge of the four new elements.

5 0
2 years ago
The half life of radium-226 is 1600 years. If you have 200 grams of radium today how many grams would be present in 8000 years?
Sveta_85 [38]

Answer:

Half life is the time taken by a radio active isotope to reduce by half of its original amount. Radium-226 has a half life of 1602 years meaning that it would take 1602 years for a mass of radium to reduce by half.

Number of half lives in 9612 years = 9612/1602 = 6 half lives

New mass = Original mass x (1/2)n where n is the number of half lives.

Therefore, New mass= 500 x (1/2)∧6

                                 = 500 x 0.015625

                                 = 7.8125 g

Hence the mass of radium after 9612 years will be 7.8125 grams.

Explanation:

3 0
3 years ago
Read 2 more answers
What type of chemical bond is hydrogen?
oksian1 [2.3K]
Hydrogen is a covalent bond. (A bond where one or more pairs of electrons are shared by two atoms)

7 0
2 years ago
Example of transforming from electric energy to chemical energy<br> please!!!
Alik [6]

Answer:

Charging a chemical battery is a simple example of converting electricital energy to chemical energy.

Explanation:

4 0
2 years ago
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