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madam [21]
3 years ago
8

How many elements make up this compound C7H5(NO2)3

Chemistry
1 answer:
UkoKoshka [18]3 years ago
4 0

Answer:

4 elements for C7H5(NO2)3

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What is the best definition of a eukaryotic cell?
Novosadov [1.4K]

Answer:

A. has an internal structure consisting of a membrane–bound nucleus and membrane–bound organelles

Explanation:

3 0
3 years ago
A cylinder, with a piston pressing down with a constant pressure, is filled with 1.90 moles of a gas (n1), and its volume is 42.
EleoNora [17]
Avagadro's law gives the relationship between volume of gas and amount of moles of gas. It states that at constant temperature and pressure, volume of gas (V) is directly proportional to number of moles of gas (n).
V/n = k
where k - constant 
\frac{V1}{n1} =  \frac{V2}{n2}
V1 = 42.0 L
n1 = 1.90 mol
n2 = 1.90 mol - 0.600 = 1.30 mol
substituting the values in the equation
\frac{42.0 L}{1.90 mol} =  \frac{V}{1.30 mol}
V = 28.7 L
Volume of the gas is 28.7 L 
3 0
3 years ago
if i initially have 4.0 L of a gas at a pressure of 1.1 atm, what will the volume be if i increase the pressure to 3.4 atm
Lelechka [254]

Answer:

<h3>The answer is 1.29 L</h3>

Explanation:

The new volume can be found by using the formula for Boyle's law which is

P_1V_1 = P_2V_2

Since we are finding the new volume

V_2 =  \frac{P_1V_1}{P_2}  \\

From the question we have

V_2 =  \frac{4 \times 1.1}{3.4}  =  \frac{4.4}{3.4} \\   =1.294117647...

We have the final answer as

<h3>1.29 L</h3>

Hope this helps and

6 0
3 years ago
Which of the following types of matter can occupy the same space at the same time?
trasher [3.6K]

Answer:

Gas, solid, and liquid.

Explanation:

3 0
3 years ago
Read 2 more answers
A solution is made of 12 g NaCl and 70.0 g water. What is the % NaCl?
sleet_krkn [62]
12+70= 82 g

(12/82)x100 = 14.6%

The answer is given to one decimal place.
6 0
3 years ago
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