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SVETLANKA909090 [29]
4 years ago
5

An empty beaker weighs 34.55 g.

Chemistry
1 answer:
Margaret [11]4 years ago
3 0

Answer:

a. 406.3mL

b. 5519.6g

Explanation:Please see attachment for explanation

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Write the balanced standard combustion reaction for the c5h7on3s2
AlexFokin [52]

Answer:

4C5H7ON3S2 + 25O2 —> 20CO2 + 14H2O + 6N2 + 4S2

Explanation:

When C5H7ON3S2 under go Combustion, the following are obtained as illustrated below:

C5H7ON3S2 + O2 —> CO2 + H2O + N2 + S2

Now, let us balance the equation. This is illustrated below:

C5H7ON3S2 + O2 —> CO2 + H2O + N2 + S2

There are 3 atoms of N on the left side and 2 atoms on the right side. It can be balance by putting 4 in front of C5H7ON3S2 and 6 in front of N2 as shown below:

4C5H7ON3S2 + O2 —> CO2 + H2O + 6N2 + S2

There are 20 atoms of C on the left side and 1 atom on the right side. It can be balance by putting 20 in front of CO2 as shown below:

4C5H7ON3S2 + O2 —> 20CO2 + H2O + 6N2 + S2

There are 28 atoms on H on the left side and 2 atoms on the right side. It can be balance by putting 14 in front of H2O as shown below:

4C5H7ON3S2 + O2 —> 20CO2 + 14H2O + 6N2 + S2

There are 8 atoms of S on the left side and 2 atoms on the right side. It can be balance by putting 4 in front of S2 as shown below:

4C5H7ON3S2 + O2 —> 20CO2 + 14H2O + 6N2 + 4S2

Now, there are a total of 54 atoms of O on the right side and 6 atoms on the left side

It can be balance by putting 25 in front of O2 as shown below:

4C5H7ON3S2 + 25O2 —> 20CO2 + 14H2O + 6N2 + 4S2

Now, we can see that the equation is balanced.

4 0
3 years ago
Texture provides clues about how igneous rocks were formed A. true B. False
hammer [34]
A.) true

Because the rocks are formed near lava so the texture would be smooth
3 0
3 years ago
NEED HELP! SCIENCE HW IS DUE IN 1 HOUR!!!!!!!!
almond37 [142]

Answer:

hair is a physical change.

Cooking is a physical and chemical change.

Ice cream melting in the sun is a physical change.

mark me as the best if this helps you

6 0
3 years ago
Why is zinc more electropositive than iron?​
Softa [21]

Answer:

Zinc has more power although iron has a stong bond with metal

Explanation:

Brainliest answer?

8 0
3 years ago
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_ is the process in which an element spontaneously transforms into another isotope of the same element, or into a different elem
MariettaO [177]

Answer:

Nuclear transmutation

Explanation:

The process in which an element spontaneously transforms into another isotope of the same element, or into a different element is called nuclear transumutation. It occurs when the number of protons or neutrons in the nucleus of an atom is changed.

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