All categories

3 years ago

Plz help! The best answer will be marked as brainliest!

Chemistry

1 answer:

navik [9.2K]3 years ago

6 0

Answer:

Oxygen and Magnesium together, OMg?!?!

You might be interested in

Which formula id correctly paired with its name? A. MgSO↓ = magnesium chlorine

Nostrana [21]

D. CuCl2 copper(2)chloride

4 0

3 years ago

If you rub a balloon on a piece of fabric or carpeting and then hold it against your head, your hair can stand on end. Why?

Korolek [52]

Answer:

because the ecstatic

Explanation:

balloons have energy on them and so does your hair so when you rub them together it causes static

4 0

3 years ago

How many moles of n are in 0.225 g of n2o?

katrin2010 [14]

<span>First, divide the mass of N2O by it's molar mass of 46 g/mol to determine the number of moles of N2O, then multiply that number by two since there are two moles of N in each mole of the compound N2O. This results in a final answer of 9.78X10^-3 moles of N in 0.225g of N2O.</span>

5 0

3 years ago

A sample of seawater contains 78.0 grams of NaCl in 2,025 mL of solution. If the molar mass of NaCl is 58.443 g/mol, what is the

DENIUS [597]

Answer:

that would be 0.659 M NaCl

4 0

3 years ago

Read 2 more answers

List all possible oxidation numbers for the elements. 21. Al

Alex73 [517]

Answer:

21. Al (Aluminium)

+3 (most common), -1, -2, +1, +2

22. Bi (Bismuth)

+3 (most common), -3, -2, -1, +1, +2, +4, +5

23. Ni (Nickel)

+2 (most common), -2, -1, 0,+1, +3, +4

24. Xe (Xenon)

0 (most common), +1, +2, +4, +6, +8

25. Pb (Lead)

+2 (most common), +4 (most common), -4, -2, -1, +1, +3

Explanation:

Now we proceed to present the answers for each element:

21. Al (Aluminium)

+3 (most common), -1, -2, +1, +2

22. Bi (Bismuth)

+3 (most common), -3, -2, -1, +1, +2, +4, +5

23. Ni (Nickel)

+2 (most common), -2, -1, 0,+1, +3, +4

24. Xe (Xenon)

0 (most common), +1, +2, +4, +6, +8

25. Pb (Lead)

+2 (most common), +4 (most common), -4, -2, -1, +1, +3

7 0

3 years ago