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Triss [41]
3 years ago
5

Which hydrocarbons are present in styrene? a) alkene b) alkyne c) none of the above?

Chemistry
1 answer:
sleet_krkn [62]3 years ago
6 0
Option a: alkene

Styren is C6H5CH=CH2, i.e. ethenylbenzene 
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Starting with calcium chloride describe how one can prepare calcium carbonate​
Dima020 [189]
I have no idea I’m sorry I’m doing a test and need to put a question
8 0
3 years ago
V2O5 + Ca = V + CaO balance the eqaution
andreyandreev [35.5K]

Answer: The balanced equation is V_{2}O_{5} + 5Ca \rightarrow 2V + 5CaO.

Explanation:

A chemical equation which contains same number of atoms on both reactant and product side is called a balanced chemical equation.

For example, V_{2}O_{5} + Ca \rightarrow V + CaO

Here, number of atoms on reactant side are as follows.

  • V = 2
  • O = 5
  • Ca = 1

The number of atoms on product side are as follows.

  • V = 1
  • O = 1
  • Ca = 1

In order to balance this equation, multiply Ca by 5 on reactant side. Multiply V by 2 and CaO by 5 on product side. Therefore, the equation can be rewritten as follows.

V_{2}O_{5} + 5Ca \rightarrow 2V + 5CaO

Now here, number of atoms on reactant side are as follows.

  • V = 2
  • O = 5
  • Ca = 5

The number of atoms on product side are as follows.

  • V = 2
  • O = 5
  • Ca = 5

Since, there are same number of atoms on both reactant and product side. So, the equation is now balanced.

Thus, we can conclude that the balanced equation is V_{2}O_{5} + 5Ca \rightarrow 2V + 5CaO.

5 0
3 years ago
When 20 milliliters of 1.0m hcl is diluted to a total volume of 60 milliliters, the concentration of the resulting solution is?
Ksenya-84 [330]
In preparing diluted solutions from concentrated solutions we can use the following formula
c1v1 = c2v2
c1 and v1 are the concentration and volume of the concentrated solution respectively
c2 and v2 are the concentrations and volume of the diluted solution respectively
Substituting these values ,
20 mL x 1.0 M = C x 60 mL
C = 0.33 M
The concentration of the resulting diluted solutions is 0.33 M
5 0
3 years ago
HELP ASAP!! PLZ
Schach [20]

D. The empirical formula and the molar mass

8 0
3 years ago
Read 2 more answers
1.
oksian1 [2.3K]

Answer:

1. total

2. potential

3. zero

4. inversely

Explanation:

7 0
3 years ago
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