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Kazeer [188]
3 years ago
9

PLEASE ANSWER

Chemistry
1 answer:
kirza4 [7]3 years ago
7 0

Answer:

1) solid

2)liquid

3)gas

4)plasma

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A ballon is filled with helium gas. Another balloon, of the same size, is filled with nitrogen gas. Explain why the ratio of the
LenaWriter [7]
Let's say say there are n1 mols of helium in the first balloon and n2 mols of nitrogen in the second one, which are equivalent to m1 grams of helium and m2 grams of nitrogen.

The molar mass of hydrogen is thus M1=m1/n1, same for nitrogen M2=m2/n2 hence the ratio of their masses is m1/m2=(M1n1)/(M2n2). Since both gases are rather similar, we can assume that n1~n2 hence m1/m2=M1/M2
4 0
3 years ago
How many moles of H2O will be formed from the reaction of 80 g of
Roman55 [17]

Answer: 2 moles of H_2O will be formed.

Explanation:

To calculate the moles :

\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}    

\text{Moles of} NaOH=\frac{80g}{40g/mol}=2moles

The balanced chemical equation is:

H_2SO_4+2NaOH\rightarrow Na_2SO_4+2H_2O

According to stoichiometry :

2 moles of NaOH give = 2 moles of H_2O

Thus 2 moles of NaOH give =\frac{2}{2}\times 2=2moles of H_2O

Thus 2 moles of H_2O will be formed.

4 0
2 years ago
This graph illustrates that, under conditions of constant pressure, as the temperature of liquid water increases, its volume ___
Lunna [17]
it varies.........................
8 0
3 years ago
If a liquid has a pH of 7 it is what?
sweet-ann [11.9K]

Answer:

Neutral

Explanation:

A pH of 7 is neutral. A pH less than 7 is acidic. A pH greater than 7 is basic. The pH scale is logarithmic and as a result, each whole pH value below 7 is ten times more acidic than the next higher value.

6 0
3 years ago
Read 2 more answers
(NEED ANSWER NOW)
Anna11 [10]

Answer:it’s C

Explanation:

A distant luminous object travels rapidly away from an observer.

4 0
2 years ago
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