3 years ago

Did I get these correctly?

Chemistry

1 answer:

Luda [366]3 years ago

4 0

Those are both correct! great job, keep up the good work (-:

You might be interested in

How many grams of aluminum chloride can be produced from 7.32g of ammonium perchlorate?

Alla [95]

Answer:

2.77g of $AlCl_{3}$ can be produced.

Explanation:

Use stoichiometry.

Balanced equation: $3Al + 3NH_{4} ClO_{4}$ ⇒ $Al_{2} O_{3} + AlCl_{3} +3NO + 6H_{2} O$

$NH_{4} ClO_{4} : AlCl_{3}$

3 : 1 ** $n=\frac{m}{M}$

0.0623** : $x$ $n=\frac{7.32}{117.49}$ = 0.0623

$3x=0.0623\\x=0.020767$

$n=\frac{m}{M}$

$m=nM$

m= (0.020767)(133.34)

m= 2.77g

5 0

2 years ago

What object has a mass of 10 grams and a volume of 2 mL

Elena-2011 [213]

Answer:

Destiny = 5 g/ml

Explanation:

The formula for density is d=

Knowing this, divide your mass by volume:

10 g / 2 ml = 5 g/ml

Final answer:

Destiny = 5 g/ml

3 0

3 years ago

11. Which of the following best explains why CO2 gas is easily compressible but solid

Oduvanchick [21]

Answer:

The right answer is C. The molecules of solid CO2 are much closer together than the molecules of CO2 gas.

8 0

4 years ago

A blood test shows clumps only in wells containing anti-A and anti-B antibodies. The Rhesus test was negative. Which is the corr

Svetllana [295]

I believe AB- unless I’m reading the question wrong.

8 0

3 years ago

Read 2 more answers

2 K + Cl2 → 2 KCI<br> How many grams of KCI (74.55 g/mol) is produced from 2.50 mol of K?

Rudik [331]

Answer: 186.3 g of $KCl$ will be produced from 2.50 mol of K

Explanation:

The balanced chemical reaction is:

$2K+Cl_2\rightarrow 2KCl$

According to stoichiometry :

2 moles of K produce = 2 moles of $KCl$

Thus 2.50 moles of $K$ will produce= $\frac{2}{2}\times 2.50=2.50moles$ of $KCl$

Mass of $KCl=moles\times {\text {Molar mass}}=2.50moles\times 74.55g/mol=186.3g$

Thus 186.3 g of $KCl$ will be produced from 2.50 mol of K

8 0

3 years ago