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ss7ja [257]
3 years ago
15

Give three examples of monoatomic molecules.

Chemistry
1 answer:
umka2103 [35]3 years ago
5 0

Answer:

Helium

Radon

and Neon

Explanation:

You might be interested in
When you are converting grams to moles , are you multiplying or dividing ?
Effectus [21]
When you are converting grams to moles, the operation that you will be doing is dividing by the molar mass to obtain the amount of moles of the given sample.
4 0
3 years ago
In the force equation, which two variables have a direct relationship? Which two have an indirect/inverse relationship?
zhuklara [117]

Answer:

if the dependent and independent variable go up its direct but if one of them goes up and another goes down its indirect

Explanation:

for example the more mass an object has the less speed it has that's indirect but the less salt you add to water the less time you have to wait for it to boil

i hope this was useful

4 0
2 years ago
What does pH measure?
Hatshy [7]

Answer:

Option D

Explanation:

Hydronium ion concentration is a measure of pH of a solution.

The mathematical equation for the same is [H3O+] = 10-pH

OR

[H3O+] = antilog (- pH)

Hence, option D is correct

4 0
2 years ago
How many moles of ideal iodine gas has a volume of 1250 mL at 10 degrees C and 768 mm pressure?
SSSSS [86.1K]

Answer:

n=0.0564mol

Explanation:

Hello,

In this case, since iodine is ideal we can use the ideal gas equation to compute the moles at the given conditions, considering the following units:

V=1250mL*\frac{1L}{1000mL} =1.25L\\P=768mmHg*\frac{1atm}{760mmHg}=1.01atm\\ T=10+273.15=283.15K

PV=nRT

n=\frac{PV}{RT} =\frac{1.01atm*1.25L}{0.082\frac{atm*L}{mol*K}*273.15K}  \\\\n=0.0564mol

Best regards.

5 0
3 years ago
What is the molarity of a solution that contains 1.78 moles of KNO3 dissolved in 2.50L of water?
Alexxandr [17]

Answer:

molarity= 0.712M

Explanation:

From n=CV

n=1.78, C=?, V= 2.5L

1.78=C×2.5

C= 0.712M

4 0
2 years ago
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