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Novay_Z [31]
2 years ago
13

Given the speed of light as 3.00 x 10° m/s, calculate the

Chemistry
1 answer:
Anarel [89]2 years ago
6 0

Answer:

the answer is mabye 30 I didnt understand

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Can someone please list one of the groups of representative elements in 1A-7A
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Group 1A(1), the alkali metals, includes lithium, sodium, and potassium. Group 7A(17) the halogens, includes chlorine, bromine, and iodine. hope this helps:)

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3 years ago
A mixture of uneven distribution and easy separation is called_____. homogeneous heterogeneous a solution a pure substance
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The correct answer is heterogeneous.
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What is the product of photosynthesis that plants make as a source of energy for their life functions? What role does this subst
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Glucose. Also provides heat and energy in man
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In the EXPLORE section of your lesson 4.08 on Potential energy there were several animations to watch that provided a graphic il
Lunna [17]

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This is because no energy is being created or destroyed in this system

Explanation:

I think this is correct? I hope it helps.        

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3 years ago
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Ethanedioic acid, a compound that is present in many vegetables, has a molar mass of 90.04 g/mol and a composition of 26.7% Carb
aleksandrvk [35]

Answer:

Empirical CHO2

Molecular C2H2O4

Explanation:

To determine the formulas, firstly, we need to divide the percentage compositions by the atomic masses.

Kindly note that the atomic mass of carbon, oxygen and hydrogen are 12, 16 and 1 respectively. We proceed with the division as follows:

C = 26.7/12 = 2.225

H = 2.2/1 = 2.2

O = 71.1/16 = 4.44375

We then proceed to divide by the smallest value which is 2.2 in this case

C = 2.25/2.2 = 1

H = 2.2/2.2 = 1

O = 4.44375/2.2 = 2

Thus, the empirical formula is CHO2

We now proceed to get the molecular formula as follows

[12+ 1 + 16(2) ]n = 90.04

45n = 90.04

n = 90.04/45 = 2

The molecular formula is :

C2H2O4

4 0
3 years ago
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