2 years ago

I need the answers of these

Chemistry

1 answer:

Anni [7]2 years ago

4 0

Answer:

Hope this helps :D

Explanation:

Metal: Aluminum and Copper

Non-Metal: Hydrogen and Flourine

Acid: Sulfuric Acid and Phosphoric Acid

Alkali Metals: Hydrogen and Lithium

Compounds: Water and Carbon Dioxide

Elements: Carbon and Oxygen

You might be interested in

Deep sea divers use a mixture of helium and oxygen to breathe. Assume that a diver is going to a depth of 150 feet where the tot

Svetlanka [38]

Answer:

4.525% is the percentage by volume of oxygen in the gas mixture.

Explanation:

Total pressure of the mixture = p = 4.42 atm

Partial pressure of the oxygen = $p_1=0.20 atm$

Partial pressure of the helium = $p_2$

$p_1=p\times \chi_1$ (Dalton law of partial pressure)

$0.20 atm=4.42 atm\times \chi_1$

$\chi_1=\frac{0.20 atm}{4.42 atm}=0.04525$

$\chi_2=1-\chi_1=1-0.04525=0.95475$

$chi_1+chi_2=1$

$n_1=0.04525 mol,n_2=0.95475 mol$

According Avogadro law:

$Moles\propto Volume$ (At temperature and pressure)

Volume occupied by oxygen gas = $V_1$

Total moles of gases = n = 1 mol

Total Volume of the gases = V

$\frac{n_1}{V_1}=\frac{n}{V}$

$\frac{V_1}{V}=\frac{n_1}{n}=\frac{0.04525 mol}{1 mol}$

Percent by volume of oxygen in the gas mixture:

$\frac{V_1}{V}\times 100=\frac{0.04525 mol}{1 mol}\times 100=4.525\%$

6 0

4 years ago

How does the freezing and boiling point of ocean water compare to those of distilled water?

vichka [17]

Distilled water is touched by man so it would probably be close to 300 degrees farenheit.......maybe.

8 0

3 years ago

Is it general principal that more abundant isotopes exist in

Nataly_w [17]

sjnsjshdjahshabbxbabsbasjsjjsjs

5 0

3 years ago

Rontloc pestu (Scrambled word)

lianna [129]

Is it "control setup"?

5 0

3 years ago

Read 2 more answers

At what speed does all electromagnetic radiation travel?

Mkey [24]

3.0
10 to the power of 8

5 0

4 years ago