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3 years ago

What does 3.4225e-8 mean

Chemistry

1 answer:

olasank [31]3 years ago

7 0

Answer:

3.4225 * 10^-8

Explanation:

This is just another way to write a number in scientific notation.

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An aqueous potassium chloride, KCl, solution is made by dissolving 0.295 0.295 mol KCl in 740.0 740.0 g of water. Calculate the

Pepsi [2]

Answer:

Molality is 0.40 m

Explanation:

Molality is a sort of concentration that indicates the moles of solute dissolved in 1kg of solvent.

To determine molality we need the moles of solute, and the mass of solvent in kg so:

We convert the mass of solvent from g to kg:

740 g . 1kg/1000g = 0.740 kg

We know the moles, so we can determine molality

Molality (mol/kg) = 0.295 mol/ 0.740kg = 0.40 m

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3 years ago

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Why is Gas Considered Carbon dioxied? (first to answer gets 100 points and brainliest

Alexus [3.1K]

Answer:

Explanation:

Carbon dioxide is a chemical compound that consists of two oxygen atoms and one carbon atom. … Carbon Dioxide (CO2) is a gas with a molecular structure composed of two oxygen atoms and one carbon atom. It is an important greenhouse gas because of its ability to absorb infrared wavelengths.

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2 years ago

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A flexible container at an initial volume of 5.120 L contains 8.500 mol of gas.

SOVA2 [1]

Answer:

30.05 mol

Explanation:

solving the proportion

V1 / n1 = V2 / n2

5.120 L 18.10 L

–––––––– = ––––––

8.500 mol x

x = 30.05 mol

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3 years ago

Which igneous rock is dark colored, cooled rapidly on Earth's surface, and is composed mainly of plagioclase feldspar, olivine,

notsponge [240]

I believe that would be scoria.
Hope it helps!

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3 years ago

BRAINLIESTTT ASAP!! PLEASE ANSWER :)

Tanya [424]

Answer:

Metals are on the far left side of the staircase, except for Aluminum, Germanium, Stibium [Antimony], Polonium, and Tennessine [Ununseptium], and non-metals are on the far right side of the staircase, except for Boron, Carbon, Silicon, Arsenic, Selenium, Tellurium, Astatine, and Oganesson [Ununoctium], The Periodic Table of Elements was created by the famous Russian inventor and chemist Dmitri Mendeleev.

* The boldfaced elements are what are known as metalloids.

I am joyous to assist you anytime.

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3 years ago