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3 years ago

Non-examples of air pressure

Chemistry

1 answer:

Anuta_ua [19.1K]3 years ago

8 0

No pressure

Ahhhhhh (filling character req)

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Pls fast pls due today pls pls I don’t wanna fail

BabaBlast [244]

Answer:

2:true

3: true

4:false

5: true

Explanation:

6 0

3 years ago

Diethyl malonate reacts with propyl bromide in a three‑step reaction sequence. Identify the product that is formed. The highligh

Crazy boy [7]

The product that is formed is shown in the figure , Option A is the correct answer , and the highlighted carbons shown corresponds to the carbons from diethyl malonate.

<h3>What is a Chemical Reaction ?</h3>

Chemical reaction, a process in which one or more substances, the reactants, are converted to one or more different substances, the products.

Substances are either chemical elements or compounds.

A chemical reaction rearranges the constituent atoms of the reactants to create different substances as products.

Chemical reactions are an integral part of technology, of culture, and indeed of life itself.

The product that is formed is shown in the figure , Option A is the correct answer , and the highlighted carbons shown corresponds to the carbons from diethyl malonate.

To know more about Chemical Reaction

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2 years ago

Infrared light from the Sun is detected on Earth as _____.

umka21 [38]

Answer: heat

Explanation:

Infrared radiation is popularly known as "heat radiation",[21] but light and electromagnetic waves of any frequency will heat surfaces that absorb them. Infrared light from the Sun accounts for 49%[22] of the heating of Earth, with the rest being caused by visible light that is absorbed then re-radiated at longer wavelengths

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4 years ago

How many molecules of hydrogen gas are present in a 750 ml<br> container at STP?

BabaBlast [244]

Answer: 1.99 x 10²² molecules H2

Explanation:First we will solve for the moles of H2 using Ideal gas law PV= nRT then derive for moles ( n ).

At STP, pressure is equal to 1 atm and Temperature is 273 K.

Convert volume in mL to L:

750 mL x 1 L / 1000 mL

= 0.75 mL

n = PV/ RT

= 1 atm ( 0.75 L ) / 0.0821 L.atm/ mole.K ( 273 K)

= 3.3x10-² moles H2

Convert moles of H2 to atoms using Avogadro's Number.

3.3x10-² moles H2/ 6.022x10²³ atoms H2 / 1 mole H2

= 1.99x10²² atoms H2

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3 years ago

On the periodic table, which group contains the noble gases? the last group A.the second group B.the fourth group C.the fir

Leni [432]

There you go your welcome

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4 years ago