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Black_prince [1.1K]
3 years ago
5

How many bonds are present in Cl20? a. 2 b. 4 c. 1 d. 3

Chemistry
1 answer:
steposvetlana [31]3 years ago
8 0

Answer:

A. 2 bonds

Explanation:

If you see a charch of ci20 it would easily show the answer.

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Hi, Can someone help me with this question, please! It's due tonight!
-BARSIC- [3]

Answer:

24.0 g C₃H₈

Explanation:

To find the mass of C₃H₈, you need to (1) convert grams CO/H₂ to moles CO/H₂ (via molar mass), then (2) convert moles CO/H₂ to moles C₃H₈ (via mole-to-mole ratio from reaction coefficients), and then (3) convert moles C₃H₈ to grams C₃H₈ (via molar mass). It is important to arrange the conversions/ratios in a way that allows for the cancellation of units (the desired unit should be in the numerator). The final answer should have 3 sig figs to reflect the sig figs in the given values.

Molar Mass (CO): 12.011 g/mol + 15.998 g/mol

Molar Mass (CO): 28.009 g/mol

Molar Mass (H₂): 2(1.008 g/mol)

Molar Mass (H₂): 2.016 g/mol

Molar Mass (C₃H₈): 3(12.011 g/mol) + 8(1.008 g/mol)

Molar Mass (C₃H₈): 44.097 g/mol

3 CO + 7 H₂ ----> 1 C₃H₈ + 3 H₂O
^           ^              ^

45.8 g CO           1 mole              1 mole C₃H₈          44.097 g
-----------------  x  ------------------  x  --------------------  x  ------------------  =
                           28.009 g           3 moles CO            1 mole

=  24.0 g C₃H₈

87.3 g H₂           1 mole           1 mole C₃H₈          44.097 g
----------------  x  ---------------  x  ---------------------  x  -----------------  =  
                          2.016 g           7 moles H₂             1 mole

=  273 g C₃H₈

It was necessary to find the mass of the products from both of the reactants because you did not know which one was the limiting reagent. The limiting reagent is the reactant which is completely used up first. Because CO produced the smaller amount of product, it must be the limiting reagent. Therefore, the actual amount of C₃H₈ produced is 24.0 grams.

4 0
2 years ago
Compound 2 contains 2.0g of hydrogen and 32.0g oxygen. What is the percent compound of each element?
Dmitriy789 [7]

Note down the formula below

\boxed{\sf Mass\%\;of\; element=\dfrac{Mass\:of\:the\: element}{Mass\;of\:the\: compound}\times 100}

Mass of the compound

\\ \sf\longmapsto 32+2=34g

Mass % of Hydrogen:-

\\ \sf\longmapsto \dfrac{2}{34}\times 100

\\ \sf\longmapsto \dfrac{1}{17}\times 100

\\ \sf\longmapsto 5.8\%

Mass % of Oxygen:-

\\ \sf\longmapsto \dfrac{32}{34}\times 100

\\ \sf\longmapsto \dfrac{16}{17}\times 100

\\ \sf\longmapsto 94.2\%

7 0
3 years ago
Convert the following to number of moles: 4.03 x 10^21 molecules present in AgNO3
castortr0y [4]
Moles = 4.03 x 10^21
             ------------------------
                6.02 x 10^23
 
           =      6.69 x 10^-3 moles.
Hope this helps!


6 0
3 years ago
Why are naturally occurring substances, such as particulates or carbon dioxide, sometimes considered pollutants?
____ [38]
Because despite being natural they still harm the ozone layer and cause breathing problems, even suffocation.
5 0
2 years ago
Read 2 more answers
Pls help me on this I have 5 minutes left to submit
pantera1 [17]

#1

Heterogenous mixture mean unsimilar substances .

  • Chicken noodle soyp.
  • salt water
  • propane.

#2

An element is a substance made of only one type of atoms

  • Example-Al,S
7 0
2 years ago
Read 2 more answers
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