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svet-max [94.6K]
2 years ago
14

Which of the following shows a valid combustion reaction?

Chemistry
2 answers:
marta [7]2 years ago
3 0

Answer:   C2H4 + 3O2 → 2CO2 + 2H2O

Explanation:

2Al + 2O2 → 2AlO + O2            Not Balanced Properly:  2Al + O2 = 2AlO  

C2H4 + 3O2 → 2CO2 + 2H2O  Looks Good

2CH4 + O2 → 2CO + 4H2          Not Correct:  CO should be CO2

Ca + O2 → CaOH                        Not Balanced and No source for the H

Yakvenalex [24]2 years ago
3 0

Answer:

2H4+3O2 →2CO2+2H2

Explanation:

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What is the partial pressure of C?<br> atm C
s344n2d4d5 [400]

The partial pressure of carbon is 45 mm Hg.

Explanation:

  • The partial pressure of carbon dioxide is referred as the amount of carbon dioxide present in venous or arterial blood. It acts as a ventilation in the lungs.
  • There is a formula for measuring partial pressure . As we know total pressure means summation of the pressure of all the gases included .
  • To find partial pressure we need- total pressure* fraction of mole of that gas. The partial pressure of CO2 is more because it carries deoxygenated blood from the whole body towards the lungs.

8 0
3 years ago
A teacher puts two tablets in a glass of water. The teacher
ehidna [41]

This question is incomplete because the options are missing; here are the options:

Which of the following is LESS dense than water?

The spoon

The glass

The tablets

The bubbles

The correct answer to this question is The bubbles

Explanation:

In general, the density of materials and substances affects their buoyancy. This implies in water less dense materials will float and those with higher density will sink. In the situation presented, the only element that is less dense than water are bubbles; this is shown by the movement of the bubbles as these originate in the bottom of the glass of water but they rise to the surface, which shows they are less dense than water.

6 0
3 years ago
Read 2 more answers
Which of the following characterizes a reaction at equilibrium?​
Alekssandra [29.7K]
I’m pretty sure the correct answer is D.
4 0
3 years ago
Which type of covalent bond is the least stable?
sergejj [24]

Hello ^^

Answer:

D.Triple Bonds

Explanation:

A Triple bond is when three pairs of electrons are shared between two atoms in a molecule. It is the least stable out of the three general types of covalent bonds.

Hope this helps!

Have an awesome day!

If you have any questions please ask.

8 0
2 years ago
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PEOPLE WHO BUY GOODS AND SERVICES ARE OF GROUP OF DECSION MAKERS CALLED?
Bumek [7]
75% i think it is consumers
25% i think it is producer
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