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mixer [17]
2 years ago
6

How many grams are in 7.32 x 1023 molecules of potassium carbonate (K2CO3)?

Chemistry
1 answer:
tiny-mole [99]2 years ago
7 0

(I leave off the x10^23 because they both will divide out)    Use your per

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Which location represents a period on a Periodic Table?   A. a vertical row   B. a horizontal row   C. a diagonal row on the per
prohojiy [21]
The periods inside the Periodic Table is B. a horizontal row, and is numbered 1 through 7


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3 years ago
The movement of the liquid in a thermometer shows changes in temperature. An increase in temperature
zhuklara [117]

Answer:

When heated, the molecules of the liquid in the thermometer move faster, causing them to get a little further apart. This results in movement up the thermometer. When cooled, the molecules of the liquid in the thermometer move slower, causing them to get a little closer together.

Explanation:

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3 0
3 years ago
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Rank these real gases according to how closely they resemble an ideal gas. CO, N2, Ne, He, NH3
Gemiola [76]

He is the closest. Then:

Ne, N2, CO, NH3.

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8 0
3 years ago
what is ( H+) and (OH-) in a healthy person's blood that has a PH of 7.50 assume that the temperature of the blood is 298 K.
AlekseyPX

pH = - log [H⁺]

pH = 7.5

\tt [H^+]=10^{-7.5}=3.16\times 10^{-8}

pH + pOH = 14

7.5 + pOH = 14

pOH = 6.5

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5 0
2 years ago
What is the standard heat of reaction for the following reaction?
8090 [49]

Answer:

The correct answer to the question is

The standard heat of reaction for the reaction is

a. 216.8 kJ released per mole

Explanation:

The heat of reaction is given by [Heat of formation of products] - [Heat of formation of reactants]

In the question we have, heat of formation of the products Zn+2 (aq) = -152.4 kJ/mole and the heat of formation of the reactants = 64.4 kJ/mole

Therefore, the heat of formation of the reaction = (-152-64.4) kJ/mole or

-216.8 kJ/mole released

5 0
3 years ago
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