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Natalija [7]
3 years ago
5

What is the mass of 22.4 L of H2 at STP? (5 points)

Chemistry
2 answers:
enot [183]3 years ago
8 0

Answer:

11.2 i got it right

Explanation:

cestrela7 [59]3 years ago
3 0
11.2
Step-by-step-explanation
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State whether the following statements are true or false (with justification). (a) 1 mol of N2 has more molecules than 1 mol of
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Answer:

A. False.

Every substance contains the same number of molecules i.e 6.02x10^23 molecules

B. False.

Mass conc. = number mole x molar Mass

Mass conc. of 1mole of N2 = 1 x 28 = 28g

Mass conc. of 1mol of Ar = 1 x 40 = 40g

The mass of 1mole of Ar is greater than the mass of 1mole of N2

C. False.

Molar Mass of N2 = 2x14 = 28g/mol

Molar Mass of Ar = 40g/mol

The molar mass of Ar is greater than that of N2.

Explanation:

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3 years ago
What will happen if you add more solute to a saturated solution?
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No more solute will dissolve at that temperature, the temperature would have to be increased in order for more solute to dissolve.
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LekaFEV [45]

Answer:

AlCl3 + 3Na > Al + 3NaCl

Explanation:

AlCl3+Na → Al + NaCl

Al =1 Al=1

Cl =3 Cl = 1

Na=1. Na = 1

so balance

and it would be

Alcl3 + 3Na → Al + 3NaCl

8 0
3 years ago
When sugar is dissolved in hot tea, physical changes occur. Write two physical properties of sugar
kompoz [17]

Answer:

When you mix the sugar into the tea and stir, it dissolves so you can't see it. Also when you stir the sugar into the tea the taste changes and it turns sweeter.

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Electrons involved in bonding between atoms are____.
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valence electrons

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