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3 years ago

The octet rule states that an atom other than hydrogen tends to form bonds until it is surrounded by

Chemistry

1 answer:

Jobisdone [24]3 years ago

4 0

Until it is surrounded by love. No, just kidding. the answer is "8 valence electrons"

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A salt solution with a volume of 250 mL that contains 0.70 mol NaCl.

uysha [10]

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3 years ago

10. The Proton is special! What does it tell us?<br> The proton tells me..

Dovator [93]

Answer:

These two numbers are fixed for an element. The mass number tells us the number the sum of nucleons of protons and neutrons in the nucleus of an atom. The atomic number also known as the proton number is the number of protons found in the nucleus of an atom. ... The atomic number uniquely identifies a chemical element.

Explanation:

8 0

3 years ago

2. Calculate the mass of K in 90g of KOH

ValentinkaMS [17]

KOH = 90g

KOH = 57 g/mol

K = 40g/mol

57g/mol contains 90 g

40g/mol will contain?

= 63.15 g

The mass of K is 63.15g

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2 years ago

Which of the following is a heterogeneous mixture?

Softa [21]

A heterogeneous mixture is a mixture that it's components can be easily seen and separated.

c. a jar of mixed nuts

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2 years ago

Read 2 more answers

A ridged steel tank filled with 62.7L of nitrogen gas of 85.0L atm

mylen [45]

The final gas pressure : 175.53 atm

<h3>Further explanation</h3>

Maybe the complete question is like this :

A ridged steel tank filled with 62.7 l of nitrogen gas at 85.0 atm and 19 °C is heated to 330 °C while the volume remains constant. what is the final gas pressure?

The volume remains constant⇒Gay Lussac's Law

<em>When the volume is not changed, the gas pressure in the tube is proportional to its absolute temperature </em>

$\tt \dfrac{P_1}{T_1}=\dfrac{P_2}{T_2}$

P₁=85 atm

T₁=19+273=292 K

T₂=330+273=603 K

$\tt P_2=\dfrac{P_1\times T_2}{T_1}\\\\P_2=\dfrac{85\times 603}{292}\\\\P_2=175.53~atm$

8 0

2 years ago