CHEMISTRY HIGH SCHOOL

Which of the following reactions produce oxygen gas? Anaerobic respiration

Photosynthesis

Aerobic respiration

Fermentation

Answers

Answer 1
Answer: The correct answer is photosynthesis. Photosynthesis is the process in plants to make their food. This involves the use carbon dioxide to react with water and make sugar or glucose as the main product and oxygen as a by-product.

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Given the system at equilibrium:2POCl3(g) + energy <==> 2PCl3(g) + O2(g)
Which changes occur when O2(g) is added tothis system?
(1) The equilibrium shifts to the right and the concentration of PCl3(g) increases.
(2) The equilibrium shifts to the right and the concentration of PCl3(g) decreases.
(3) The equilibrium shifts to the left and the concentration of PCl3(g) increases.
(4) The equilibrium shifts to the left and the concentration of PCl3(g) decreases.

Answers

Given the data from the question, the correct answer to the question is:

The equilibrium shifts to the left and the concentration of PCl₃(g) decreases. (Option 4)

What is chemical equilibrium?

This is simply defined as a state in a chemical system where there is no observable change in the properties of the system with time.

A French scientist postulated a principle which helps us to understand a chemical system in equilibrium.

The principle states as follow:

  • If a an external constraint such as change in temperature, pressure or concentration is imposed on a system in equilibrium, the equilibrium will shift so as to neutralize the effect.

How to determine the position of equilibrium constant

Considering the question given above, we are concerned with O₂ (i.e concentration) being added to the reaction

2POCl₃(g) + energy <=> 2PCl₃(g) + O₂(g)

According to the principle given above, if more O₂ is added, then, PCl₃ and O₂ will react to produce more POCl₃. Thus, the equilibrium will shift to the left and also PCl₃ will reduce.

Learn more about chemical equilibrium:

brainly.com/question/4289021
(4) The equilibrium shifts to the left and the concentration of PCl3(g) decreases.

What do the formulas for table salt, NaCl, and water, H2O indicate about the compounds?

Answers

The formulas indicate the number of elements in each compound. Notice the difference in ratios: 
NaCl is 1:1, while H2O is 2:1.

Question 32(multiple choice worth 1 points) [01.04]what do scientists use to measure the mass of a substance? balance graduated cylinder measuring cup scale

Answers

has to be balance since the others are for volume

Starting a fitness plan slowly will lead to better results than starting out quickly TRUE OR FALSE

Answers

True. Hope that helps!
Starting a fitness plan slowly will lead to better results than starting out quickly TRUE OR FALSE.True

Determined which equation is balanced or unbalanced.

Answers

Answer:

1. balanced

2.unbalanced

3.unbalabced

4.balanced

What is the molar mass of ph

Answers

30.973762 u ± 0.000002 u Hope this Helps >>
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