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Fed [463]
3 years ago
12

Calculate the number of grams in magnesium present in 25 g of magnesium phosphate

Chemistry
2 answers:
Ilya [14]3 years ago
6 0
25 g of Mg3(PO4)2 is about 0.096 mol so each mol of that is equal to 3 mols of Mg
which leads to about 6.9 g of Mg
Mg : 24 g/mol
P : 30 g/mol
O : 16 g/mol
olga55 [171]3 years ago
4 0

you can google it and it pops up right away

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All cells in living organisms undergo cellular respiration. The chemical reaction for cellular respiration is stated below. (Glu
Ne4ueva [31]

Answer : The total mass of carbon dioxide and water produced will be, 65.7 grams.

Explanation :

Law of conservation of mass : It states that mass can neither be created nor be destroyed but it can only be transformed from one form to another form.

This also means that total mass on the reactant side must be equal to the total mass on the product side.

The balanced chemical reaction will be,

C_6H_{12}O_6+6O_2\rightarrow 6CO_2+6H_2O

According to the law of conservation of mass,

Total mass of reactant side = Total mass of product side

Total mass of C_6H_{12}O_6+6O_2 = Total mass of 6CO_2+6H_2O

As we are given :

Total mass of C_6H_{12}O_6+6O_2 = 65.7 grams

So,

65.7 grams = Total mass of 6CO_2+6H_2O

Therefore, the total mass of carbon dioxide and water produced will be, 65.7 grams.

4 0
3 years ago
Explain why atoms would gain or lose electrons in order to resemble the elements in the particular group you named above. Consid
Leokris [45]

Answer:

The number of electrons in the outermost shell of an element is represented in the periodic table as the group number that element is situated in the number of electrons in all shells of an element is represented in the periodic table as the element's atomic number.

Explanation:

I hope that helps

4 0
3 years ago
What causes “gaps in the rock record” and how is that described?
Mamont248 [21]

Answer:

An unconformity is a widespread surface separating rocks above and below, which represents a gap in the rock record. Unconformities occur when either erosion wears away rocks, or rock deposits never form. Therefore, a time gap exists between when the rocks below the unconformity formed and when those above it formed.

Explanation:

5 0
2 years ago
What happens to colors in sunlight when droplets of water in the atmosphere act like prisms?
andrew-mc [135]
Dispersion so the correct is A!!!
4 0
3 years ago
Read 2 more answers
Explain the difference between fixed and variable oxidation
dem82 [27]

Fixed vs Variable Oxidation is given below.

Explanation:

1.In its compounds, hydrogen has an oxidation number of +1, except. hydrides where the. oxidation number of hydrogen is -1. In their compounds, the metals with fixed oxidation states have the oxidation number that. corresponds with the fixed oxidation number.

A variable oxidation state is a value that determines the charge of the atom depending on certain conditions.

2. Ox­i­da­tion state of el­e­ments is con­sid­ered to be of the most im­por­tant in the study of chem­istry. For some el­e­ments, this fig­ure is con­stant known as fixed oxidation , while for oth­ers it is vari­able is called variable oxidation state.

3. MgCl2 :  magnesium is in Group IIA and all elements in Group IIA have fixed oxidation numbers of +2

FeCl2 :  iron has a variable oxidation number of either +2 or +3 and is not fixed

7 0
3 years ago
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