3 years ago

Help<3

Chemistry

1 answer:

olga2289 [7]3 years ago

5 0

Answer:

D. weight

$\:$

You might be interested in

Iv'e got a long one

EleoNora [17]

1.) A

2.) C

3.) A

4.) A

5.) C

7 0

4 years ago

A. yanlız 1 b. yanlız 3 c. 1 ve 3 d. 1 .2 ve 3 acil lütfen. tessekurler:)

sashaice [31]

Answer:

iki kesinlikle doğrudur kolay gelsin

7 0

3 years ago

If there are 40 mol of NBr3 and 48 mol of NaOH, what is the excess reactant?

Nata [24]

Answer:

The correct answer is option B.

Explanation:

$3NaOH+2NBr_3\rightarrow 3HOBr+3NaBr+N_2$

Moles of $NBr_3$ = 40 mol

Moles of NaOH = 48 mol

According to reaction, 3 moles of NaOH reacts with 2 moles $NBr_3$

Then ,48 moles of NaOH will reacts with:

$\frac{2}{3}\times 48 mol=32 mol$ of $NBr_3$

Then ,40 moles of $NaBr_3$ will reacts with:

$\frac{3}{2}\times 40 mol=60 mol$ of NaOH

As we can see that 48 moles of sodium will completey react with 32 moles of nitrogen tribromide.

Moles left after reaction = 40 mol - 32 mol = 8 mol

Hence, the $NBr_3$ is an excessive reagent.

6 0

3 years ago

Read 2 more answers

A gravel can be broken down into different kinds of substances by physical processes. No chemical reactions are needed to separa

butalik [34]

answer:

heterogenous mixture

Explanation:

6 0

3 years ago

Read 2 more answers

According to Dalton's atomic theory

avanturin [10]

Answer: C. Atoms cannot be subdivided, created, or destroyed. This is the correct answer

6 0

3 years ago