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3 years ago

How to do thw part where it says list the elements to period 2and the metals

Chemistry

1 answer:

marissa [1.9K]3 years ago

7 0

A)2nd period - Li, Be, B,C,N,O,F,Ne
b)Metalls of the 2nd period are Li,Be

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In a body of water, the surface tension caused by the attraction between water molecules is strong. Which of the following is a

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3 years ago

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distinguish between the climates of a coastal location and a location in the center of a large continent.

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Answer:

Climatic condition in coastal regions is milder than the climatic conditions in the continental regions.

Explanation:

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While in continental regions both summer and winters undergo extreme conditions. Summers are extremely hot and winters are extremely cold. They have wide range of climatic exposures such as rainy season, autumn season and spring season in between summer and winter season.

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3 years ago

If chlorine gas is bubbles through an aqueous solution of sodium iodide,the result is elemental iodine and aqueous sodium chlori

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3 years ago

A syringe initially holds a sample of gas with a volume of 285 mL at 355 K and 1.88 atm. To what temperature must the gas in the

Ivahew [28]

Answer: The temperature to which the gas in the syringe must be heated is 720.5 K

Explanation:

To calculate the volume when temperature and pressure has changed, we use the equation given by combined gas law.

The equation follows:

$\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}$

where,

$P_1,V_1\text{ and }T_1$ are the initial pressure, volume and temperature of the gas

$P_2,V_2\text{ and }T_2$ are the final pressure, volume and temperature of the gas

We are given:

$P_1=1.88atm\\V_1=285mL\\T_1=355K\\P_2=2.50atm\\V_2=435mL\\T_2=?K$

Putting values in above equation, we get:

$\frac{1.88atm\times 285mL}{355K}=\frac{2.50atm\times 435mL}{T_2}\\\\T_2=\frac{2.50\times 435\times 355}{1.88\times 285}=720.5K$

Hence, the temperature to which the gas in the syringe must be heated is 720.5 K

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3 years ago

Of the elements: b, c, f, li, and na. the element with the smallest ionization energy is

love history [14]

B- 8.2980
C- 11.2603
F- 17.4228
Li- 5.3917
Na- 5.1391

I would say your answer is Na.

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3 years ago