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MrRissso [65]
3 years ago
15

Someone pls help, I can't figure these problems out, I'm giving all of my brainly

Chemistry
1 answer:
STatiana [176]3 years ago
4 0

Answer:

No, they dont have enough and they'd need 1 more quart of milk

Explanation:

lets see, 2 pints in a quart, if they have 6 quarts so 12 pints, they'd need 1 more quart to make 14 milkshakes

for 20, 6 12 oz bottles is 72 oz, 1/2 a gallon is only 64 so the 6 bottles is 8 more oz of water, Hoshi boght more

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What does it mean if the plus sign is positive for the sodium atom?
solniwko [45]

The charge of the ion is +1

5 0
3 years ago
What happens to the energy absorbed during an endothermic reaction
LuckyWell [14K]

Answer:

more energy is absorbed when the bonds in the reactants are broken

4 0
2 years ago
The rate of a certain reaction is given by the following rate law: rate Use this information to answer the question below. At a
AleksAgata [21]

Answer:

Initial rate of the reaction when concentration of hydrogen gas is doubled will be 3.2\times 10^6 M/s.

Explanation:

N_2+3H_2\rightarrow 2NH_3

Rate law says that rate of a reaction is directly proportional to the concentration of the reactants each raised to a stoichiometric coefficient determined experimentally called as order.

Initial rate of the reaction = R = 4.0\times 10^5 M/s

R = k\times [N_2][H_2]^3

4.0\times 10^5 M/s=k\times [N_2][H_2]^3

The initial rate of the reaction when concentration of hydrogen gas is doubled : R'

[H_2]'=2[H_2]

R'=k\times [N_2][H_2]'^3=k\times [N_2][2H_2]^3

R'=8\times k\times [N_2][H_2]^3

R'=8\times R=8\times 4\times 10^5 M/s=3.2\times 10^6 M/s

Initial rate of the reaction when concentration of hydrogen gas is doubled will be 3.2\times 10^6 M/s.

7 0
3 years ago
The magnitude of an earthquake, measured on the Richter Scale, is M log1o T where / is the amplitude registered on a seismograph
just olya [345]

<u>Answer:</u> The magnitude rating for an earthquake causing an amplitude 10,000,000 times I_o is 7.

<u>Explanation:</u>

Richter scale is defined as the scale which expresses the magnitude of earthquake on the basis of the seismograph oscillations.

The equation used to measure the magnitude of an earthquake on Richter scale is:

M=log_{10}\frac{I}{I_o}

where

I = amplitude registered on seismograph 100 km away from seismic center = 10,000,000I_o

I_o = small amplitude

Putting values in above equation, we get:

M=\log_{10}(\frac{10000000I_o}{I_o})\\\\M=7

Hence, the magnitude rating for an earthquake causing an amplitude 10,000,000 times I_o is 7.

8 0
3 years ago
Which of these elements exist as a liquid at normal Earth temperatures? Select all that apply. bromine sodium oxygen mercury
Anni [7]
Mercury exist as liquid at normal earth tempertures
4 0
3 years ago
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