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g100num [7]
3 years ago
10

The air in a balloon is heated up. Give two effects this has on the air particles.

Chemistry
1 answer:
Lisa [10]3 years ago
4 0
Density and mass increases
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3. Give two examples of an ionic compound.
FinnZ [79.3K]

Answer: NaCl and LiNO3

Explanation:

Because in aqueous solution they ionize

NaCl produces Na+ and Cl-

And LiNO3 produces Li+ and NO3- ion

5 0
3 years ago
A sample of gas occupies 17 mL at -122°C. What volume does the sample occupy at 70°C?
aev [14]

Answer: 38.6 ml

Explanation:

Charles' Law: This law states that volume is directly proportional to the temperature of the gas at constant pressure and number of moles.


V\propto T    (At constant pressure and number of moles)

\frac{V_1}{T_1}=\frac{V_2}{T_2}

V_1= initial volume = 17 ml

V_2= final volume = ?

T_1= initial temperature =-122^0C=273+(-122)=151K

T_2=final temperature=70^0C= 70+273=343K

\frac{17}{151}=\frac{V_2}{343}

V_2=38.6ml

Thus final volume is 38.6 ml at 70^0C




7 0
3 years ago
Chemistry, 50 points!!! Will also mark brainliest if you answer everything
olasank [31]

Answer:

1. 2Al + Cl2 = Al2Cl2

2 TiCl4 + 2Na = Ti + 2NaCl2

3. H2O2 = H2O + O2

4. Na2S + 2HCl = H2S + 2NaCl

5. Mg(OH)2 + 2HCl = MgCl2 + 2H2O

1. 3O2 = 2O3

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2 years ago
When was helium discoved?
andrey2020 [161]
It was discovered in 1868.i hope this helps you .
4 0
3 years ago
Which of the following would be more likely to conduct electrons? Strontium or Iodine? Defend your choice.
Alchen [17]
Strontium because it is a metal
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