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-Dominant- [34]
3 years ago
10

What is the balanced equation for heptane (C7H16) burning in oxygen to make carbon dioxide and water?

Chemistry
1 answer:
steposvetlana [31]3 years ago
6 0
C7H16 + 11O2 > 7CO2 + 8H2O
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Which formed first: hydrogen nuclei or hydrogen atoms?
Mama L [17]
This sounds very much like a chicken-egg problem.

The first thing that formed must be hydrogen nuclei. The only other alternative is that the atom was created instantly, and the nuclei sprang forth at the same time as the atom, meaning that neither was technically first. The logic is that an atom can’t form without a nucleus, but it theoretically could be created instantly.
6 0
3 years ago
What element has more electrons than sodium, but less electrons than aluminum?
kogti [31]

Answer: Magnesium

Explanation:

Sodium, number of electrons= 11

Aluminum, number of electrons= 13

Magnesium, number of electrons= 12. which is greater than sodium but less than aluminum.

5 0
2 years ago
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If mixture didn't exist how would life be different​
ollegr [7]

Answer:

boring

Explanation:

life would be meaningless like everyone being like on person

8 0
3 years ago
Help asap on a time crunch
marusya05 [52]

Answer:

<u>only sodium chloride compounds</u> MOST LIKELY products of the reaction between sodium metal and chlorine gas.

Correct answer - C

Explanation:

A solid sodium metal reacts with gaseous form of chlorine gas to form  a solid sodium chloride.

This formation of sodium chloride arises due to transfer of one valence electron from sodium to chlorine atom and the both atoms get stable octet electronic configuration.

As a result, an ionic compound solid sodium chloride is formed.

The chemical reaction of formation sodium chloride is as follows.

2Na(s)+Cl_{2}(g) \rightarrow 2NaCl(s)

Therefore, <u>only sodium chloride compounds</u> MOST LIKELY products of the reaction between sodium metal and chlorine gas.

7 0
3 years ago
Mario uses a hot plate to heat a beaker of 50mL of water. He used a thermometer to measure the temperature of the water. The wat
Alex777 [14]

Answer:

The boiling point decreases as the volume decreases.

Explanation:

The Temperature - Volume law otherwise called as Charles law is applied, which says that the volume of the given gas at constant pressure is directly proportional to the temperature measured in Kelvin. As the volume increases, the temperature also increases, if the volume decreases, then the temperature also decreases.

As per the Charles law, here the volume is decreased from 50 ml to 25 ml so the boiling point also decreases.

8 0
3 years ago
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