How many moles of oxygen atoms are present in 5 moles of Mg3(PO4)2

Answers

Answer 1

Answer:

All you have to do is to create a ratio between the molecule and the oxygen atom.

5 moles of Mg3(PO4)2 (4x2 moles O/1 mole Mg3(PO4)2) = 40 moles of oxygen

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How many liters of oxygen are required to burn 3.86 of CO2??

Answers

1.93 litres. hope i helped!!

Ammonia is an important ingredient in many fertilizers. The main process by which ammonia is made is the Haber process. In this process, nitrogen gas and hydrogen gas are reacted to form ammonia at high temperatures. Which of the following most likely explains why this reaction is carried out at high temperature?Ammonia is unstable at room temperature.
High temperatures increase the activation energy of the reaction.
High temperatures make the gas molecules move more quickly.
The reaction becomes exothermic at high temperatures.

Answers

The best answer is "High temperatures increase the activation energy of the reaction."

The Haber process is an exothermic reaction at room temperature. This means that the reaction actually favors the reverse reaction, especially when the temperature is increased. So why increase the reaction temperature?

The reason for this is that nitrogen is a very stable element. Therefore, more energy is needed to overcome the slow rate of reaction. So the reaction temperature must be low enough to favor a forward reaction, but high enough to speed up the reaction.

this is wrong do not put this if your with FLVS

the correct answer is C i got 100% on it

How many atoms are in 0.075 mol of titanium?Proper keying of scientific notation:

N x 10^exp or N x 10e(exp)

examples: 5.6 x 10^-3 or 5.6 x 10e-3

Answers

n = 0.075 mol

N = n × Na = 0.075 mol × 6.02 × 10^23 mol^-1 = 0.4515 × 10^23 = 45.15 × 10^21 or 45.15 × 10e23

When determining whether a chemical reaction has taken place you observe and look for several indicators. Which would be considered an indication that a chemical reaction or chemical change has taken place? es -) A) Solid melts. B) Heat is given off. Substance dissolves D) Substance changes shape. Physical Science

Answers

Answer:

B) Heat is given off.

Explanation:

When heat is given off, a chemical change must have occurred and such a reaction is termed an exothermic reaction.

A chemical change is one in which;

the process is not easily reversible
leads to the production of new kinds of matter
involves change in mass
requires a considerable amount of energy.

Most chemical reactions are accompanied by heat changes.

What is the basic difference between primary and secondary succession?a. the presence of water
b. the presence of air
c. the presence of soil
d. the presence of trees

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I think the correct answer is D. These ecological succession differs in the presence of trees. Primary succession occurs in essentially lifeless locations while secondary succession happens in areas where a community that existed has been removed.

Besides oxygen and hydrogen, which element is most abundant within the human body? iodine (I) boron b. nitrogen (N) carbon
c.

Answers

its carbon dioxide we exhale carbon along with oxygen

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