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poizon [28]
2 years ago
9

What two processes below are MOST SIMILAR?

Chemistry
2 answers:
mars1129 [50]2 years ago
8 0
The first one in my opinion
SpyIntel [72]2 years ago
4 0
The last one is the most similar in my opinion
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What is the approximate wavelength of radio waves
Ulleksa [173]

Answer:

CO32-:  

✔ reactant

H2O:  

✔ product

CO2:  

✔ product

The 2 in front of H+:  

✔ coefficient

Explanation:

3 0
2 years ago
What is the second most abundant element in stars? A. helium B. iron C. hydrogen D. oxygen
devlian [24]
<span>The </span>abundance of a chemical element<span> is a measure of the </span>occurrence<span> of the </span>element<span> relative to all other elements in a given environment. Abundance is measured in one of three ways: by the </span>mass-fraction<span> (the same as weight fraction); by the </span>mole-fraction<span> (fraction of atoms by numerical count, or sometimes fraction of molecules in gases); or by the </span>volume-fraction<span>. Volume-fraction is a common abundance measure in mixed gases such as planetary atmospheres, and is similar in value to molecular mole-fraction for gas mixtures at relatively low densities and pressures, and </span>ideal gas<span> mixtures. Most abundance values in this article are given as mass-fractions.

</span>
8 0
3 years ago
What is the h+ concentration for an aqueous solution with poh = 3.35 at 25 ∘c? express your answer to two significant figures an
RSB [31]
POH value was calculated by the negative logarithm of hydroxide ion concentration.
To know the hydrogen ion concentration, we need to know the pH value, that can be found out if pOH is known 
pH + pOH = 14
pH = 14 - pOH 
pH = 10.65
once the pH is known we have to find the antilog. 
[H⁺] = antilog (-pH)
antilog can be found by 
[H⁺] = 10^(-10.65)
[H⁺] = 2.2 x 10⁻¹¹ M
3 0
3 years ago
the movement of molecules from an area of low concentration to an area of high concentration occurs in what transport?
solmaris [256]
Movement of molecules from an area of higher concentration to one of lower concentration is called Diffusion
4 0
3 years ago
The cis and trans geometric isomers of a compound have different chemical and physical properties. Draw the structure of the geo
frutty [35]

<u>Answer:</u> The structure of the geometrical isomers are attached below.

<u>Explanation:</u>

Cis- and Trans- isomers are the geometrical isomers which have same chemical formula but different structural formula

According to CIP rule, the groups on the doubly bonded carbon atoms are given priorities based on the the atomic masses of first connected atom.

If the highest priority groups are on the same side, it is known as cis-form and if the highest priority groups are on opposite side, it is known as trans-form.

We are given a chemical compound, which is 2-pentene.

In this the highest priority groups are methyl and ethyl groups.

When the groups are on the same side, it forms cis-form and when the groups are on the opposite side, it forms trans-form

The structure of the geometrical isomers are attached below.

7 0
3 years ago
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