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Sav [38]
3 years ago
6

Please help 15 points

Chemistry
1 answer:
horsena [70]3 years ago
8 0

Answer:

if we were standing on the sidewalk Thane our perspective of the world would look like ( car moving right) (plane moving right as well) hope this helps comment for any further help

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What is the Ka of a 0.0796 M solution of nitrous acid (HNO2) with a pH of 2.95?
Vadim26 [7]

Answer:

Coefficient = 1.58

Exponent = - 5

Explanation:

pH = 2.95

Molar concentration = 0.0796M

Ka = [H+]^2 / [HA]

Ka = [H+]^2 / 0.0796

Therefore ;

[H+] = 10^-2.95

[H+] = 0.0011220 = 1.122 × 10^-3

Ka = [H+] / molar concentration

Ka = [1.122 × 10^-3]^2 / 0.0796

Ka = (1.258884 × 10^-6) / 0.0796

Ka = 15.815 × 10^-6

Ka = 1.58 × 10^-5

Coefficient = 1.58

Exponent = - 5

4 0
3 years ago
predict the product that forms in the synthesis reaction between potassium metal and iodine gas. provide the balanced chemical e
Doss [256]
K + I - > KI 
Potassium (needs to lose 1 electron) responds with Iodine (needs to pick up 1 electron) to fulfill both component's octet, shaping a salt, potassium iodide 
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3 years ago
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What is the concentration of each type of monosaccharide in lactose
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Answer:

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Your answer is going to be 200g
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Which one of the following is not a fossil fuel?
Finger [1]

The answer is C, Uranium.

Natural gas, coal, and oil are all naturally made from fossils. Uranium is an element which can be found on the Periodic Table of Elements.

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2 years ago
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