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Anuta_ua [19.1K]
3 years ago
8

Why do oxygen and hydrogen can be kept underwater​

Chemistry
1 answer:
Scrat [10]3 years ago
8 0
The reason we cannot breath liquid water is because the oxygen used to make the water is bound to two hydrogen atoms and we cannot breath the resulting liquid
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For eyes, the male monster's genotype was EE, and the female monster's genotype was ee. What kind of eyes can the baby monsters
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2 years ago
What is the volume of 0.640 grams of Oz gas at Standard Temperature and Pressure (STP)?
Ilia_Sergeevich [38]

Answer: The volume of 0.640 grams of O_{2} gas at Standard Temperature and Pressure (STP) is 0.449 L.

Explanation:

Given: Mass of O_{2} gas = 0.640 g

Pressure = 1.0 atm

Temperature = 273 K

As number of moles is the mass of substance divided by its molar mass.

So, moles of O_{2} (molar mass = 32.0 g/mol) is as follows.

No. of moles = \frac{mass}{molar mass}\\= \frac{0.640 g}{32.0 g/mol}\\= 0.02 mol

Now, ideal gas equation is used to calculate the volume as follows.

PV = nRT

where,

P = pressure

V = volume

n = no. of moles

R = gas constant = 0.0821 L atm/mol K

T = temperature

Substitute the values into above formula as follows.

PV = nRT\\1.0 atm \times V = 0.02 mol \times 0.0821 L atm/mol K \times 273 K\\V = 0.449 L

Thus, we can conclude that the volume of 0.640 grams of O_{2} gas at Standard Temperature and Pressure (STP) is 0.449 L.

6 0
3 years ago
What is difference between groups and periods? 8th grade science idk what to put it under
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One is rows the other is columns
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Sodium chloride (NaCI) is made from _____ of sodium (Na) and ___ of chlorine ( Ci)
astra-53 [7]
Sodium chloride is made from one sodium atom and one chlorine atom:

Sodium has a charge of +1, or just +.

Chlorine has a charge of -1, or just -.

These balance out.
6 0
3 years ago
Read 2 more answers
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