I can’t answer the exact thing, but I know how to do it. One of the nitrogen bases always pairs with a different one, so once you know what pairs with what you just write it down. If you need more help just ask :) tip: one base will only join with a different one. One won’t join to multiple (from what I know as of now)

7 0

3 years ago

PLEASE HELP

Vinvika [58]

Answer:

11.6 grams of MgO can be produced with 4.63 grams of oxygen.

Explanation:

$2Mg+O_2\rightarrow 2MgO$

Mass of oxygen gas = 4.63 g

Moles of oxygen gas = $\frac{4.63 g}{32 g/mol}=0.145 mol$

According to reaction, 1 mole of oxygen gas gives 2 moles of magnesium oxide, then 0.1447 moles of oxygen gas will giv e:

$\frac{2}{1}\times 0.145 mol=0.29 mol$ of magnesium oxide

Mass of 0.2894 moles of magnesium oxide:

= 0.29 mol × 40 g/mol = 11.6 g

11.6 grams of MgO can be produced with 4.63 grams of oxygen.

5 0

3 years ago

#9 *

klio [65]

Answer:

As pressure increases , volume decreased

As pressure decreases , volume increases

Explanation:

Boyle's law

8 0

3 years ago