3 years ago

Name two elements in which the last electrons to be added are placed into s subshells

1 answer:

6 0

Lithium and Sodium both have their last elections added to s subshells. All alkali and alkali earth metals have their last electrons placed in s subshells.

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What volume of 0.200 M H2SO* will be needed to neutralize 50.00 mL of 0.178 MNaOH?

mixas84 [53]

Answer:

10.00 mL

Explanation:

Please, do not forget to write the dot and 2 of Zeros after the number 10 in the answer!

Please see the step-by-step solution in the picture attached below.

Hope this answer can help you. Have a nice day!

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3 years ago

What is safer to drink 113 ml of HCl or 244 ml of NaOH

skad [1K]

Answer:

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Explanation:

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2 years ago

A gas occupies 3.5L at 2.5 kPa pressure. What is the volume at 100 mmHg at the same temperature? Be sure to

nasty-shy [4]

The volume at 100 mmHg : 0.656 L

<h3>Further explanation</h3>

Boyle's Law

At a constant temperature, the gas volume is inversely proportional to the pressure applied

$\rm p_1V_1=p_2.V_2\\\\\dfrac{p_1}{p_2}=\dfrac{V_2}{V_1}$

V₁=3.5 L

P₁=2.5 kPa=18,7515 mmHg

P₂=100 mmHg

$\tt \dfrac{18.7515}{100}=\dfrac{V_2}{3.5}\\\\V_2=\dfrac{18.7515\times 3.5}{100}=0.656~L$

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3 years ago

Which of the following correctly defines transcription?

icang [17]

I would say is b. The answer

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How much thermal energy is required to heat 15.2g of a metal (specific heat= 0.397 J/g C) from 21C to40.3C?

Pepsi [2]

Q=mcΔT
Q=15.2g(0.397J/g C)(40.3-21)
Q=116.5J

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3 years ago