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kolezko [41]
4 years ago
9

All molecules are made up of

Chemistry
2 answers:
lukranit [14]4 years ago
7 0

Answer:

Atoms

Explanation:

A molecules forms when two or more atoms form a chemical bond with each other.

FromTheMoon [43]4 years ago
4 0
Molecules are made up of atoms that are held together by chemical bonds.
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Please answer soon!!!!!
fgiga [73]

Answer:

7.27 grams

Explanation:

Format= starting amount (g)·(1 mol/molar mass)·(amount of wanted/amount of starting)·(molar mass of wanted/1 mol)

41.0 x \frac{1 mol}{17.031}x\frac{3 H2}{2NH3} x\frac{2.016}{1 mol} =7.27

5 0
3 years ago
A sample of a hydrocarbon contains 20.75 g C and 4.25 g H. Its molar mass is 58.04 g/mol. What is its empirical formula C2H5 CH2
Xelga [282]
It is c2h5 if you our doing it on edunitey thats all i can say 

6 0
3 years ago
Read 2 more answers
Ammonium hydrogen sulfide NH4HS(s) decomposes on heating according to the reaction NH4HS(s) ↔ NH3(g) + H2S(g) At 25 °C the equil
yan [13]

Answer:

0.66atm

Explanation:

Based on the reaction:

NH₄HS(s) ↔ NH₃(g) + H₂S(g)

The equilibrium constant, Kp, is defined as:

Kp = 0.11 = P_{NH_3} P_{H_2S}

As moles of gas produced for NH₃(g) and H₂S(g) are the same, it is possible to write:

0.11 = P_{NH_3}^2

0.33 = P_{NH_3}

That means pressure of NH₃(g) is 0.33atm and H₂S(g) is, also, 0.33atm. Thus, total pressure is:

0.33atm×2 = <em>0.66atm</em>

3 0
4 years ago
Read 2 more answers
Plz help me asap now so i can move on
Vikki [24]

14) im not typing the whole thing but its C

15) magma that is low in silica

16) I honestly don't know this one my best guess would be B

5 0
3 years ago
How many total atoms are in 0.560 g of P2O5
ioda

Answer:

16.499 × 10∧ 21 atoms

Explanation:

Given data:

mass of P2O5= 0.560 g

number of atoms= ?

first of all we will calculate the molar mass of P2O5:

P = 2×31 g/mol = 62 g/mol

O = 5× 16 = 80 g/mol

molar mass of P2O5 = 142 g/mol

Noe we will find the moles of 0.560 g P2O5:

moles = mass / molar mass

moles = 0.560 g/ 142 g/mol

moles = 0.0039 mol

now we will find the atoms present in 0.0039 moles:

0.0039 × 6.02 × 10∧ 23 molecules

2.357 × 10∧ 21 molecules

P2O5 consist of 7 atoms:

2.357 × 10∧ 21  × 7 = 16.499 × 10∧ 21 atoms

7 0
3 years ago
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