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PilotLPTM [1.2K]
4 years ago
7

Which geoiogic feature is most likey to from a mid

Chemistry
1 answer:
scZoUnD [109]4 years ago
8 0
What are the answer choices?
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How does the study of cosmology relate to astronomy
slega [8]
Cosmology is the study of the grand scale of the universe. You need astronomical observation because then there would be no proof to cosmological theory.
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3 years ago
What families do you have in your chart
Vladimir79 [104]

Answer:

Families in chart is offsprings made from molecules

Explanation:

Because babies are made from the offspring on which your eye colors,hair colors and etc.

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3 years ago
Melting point of a substance is what kind of property?
Mrrafil [7]
It’s chemical I think
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3 years ago
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The volume of a gas is 27.5 mL at 22.0°C and 0.974 atm. What will the volume be at 15.0°C and 0.993 atm? Use Ideal Gas Law (PV =
Scorpion4ik [409]

Answer:

26.3 mL

Explanation:

Step 1:

Obtaining an appropriate gas law from the ideal gas equation.

This is illustrated below:

From the ideal gas equation:

PV = nRT

Divide both side by T

PV/T = nR

At this stage, we'll assume the number of mole (n) to be constant.

Note: R is the gas constant.

PV/T = constant.

We can thus, write the above equation as:

P1V1/T1 = P2V2/T2

The above equation is called the general gas equation.

Step 2:

Data obtained from the question. This includes the following:

Initial volume (V1) = 27.5 mL

Initial temperature (T1) = 22.0°C = 22.0°C + 273 = 295K

Initial pressure (P1) = 0.974 atm.

Final temperature (T2) = 15.0°C = 15.0°C + 273 = 288K

Final pressure (P2) = 0.993 atm

Final volume (V2) =..?

Step 3:

Determination of the final volume of the gas using the general gas equation obtained. This is illustrated below:

P1V1 /T1 = P2V2/T2

0.974 x 27.5/295 = 0.993 x V2/288

Cross multiply to express in linear.

295x0.993xV2 = 0.974x27.5x288

Divide both side by 295 x 0.993

V2 = (0.974x27.5x288)/(295x0.993)

V2 = 26.3 mL

Therefore, the new volume of the gas is 26.3 mL

4 0
3 years ago
On which of the following factors does the amount of energy absorbed by an endothermic reaction depend?
Vlad1618 [11]

Answer:

The factors on which the amount of energy absorbed by an endothermic reaction depends are the " physical state of the reactant and the difference in the potential energy of the reactant and the product".

Explanation:

In an endothermic reaction the factors that affects the reaction are  the physical state of the reactant, which thus becomes the enthalpy. And the difference in potential energy of the reactant because if the sum of the potential energy is less than the sum of the potential energy of the product than the endothermic reaction will be positive and the reaction hence will be endothermic.

       \delta H= \delta H_{Product}- \delta H_{Reactant}

7 0
3 years ago
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