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castortr0y [4]
2 years ago
5

Lava that cools quickly forms: A. basalt B. granite C.quartz D. none the above

Chemistry
2 answers:
xxTIMURxx [149]2 years ago
7 0

Answer:

I think the answer would be B. hope this helps!!

Explanation:

lawyer [7]2 years ago
3 0
The answer is A I’m pretty sure lol
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A student is making some observations of garlic. Which of these is NOT a qualitative observation?
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I believe it is D because it is giving data about the garlic while the other answers are observations of the garlic
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Two liquids, a and b are immiscible. liquid a has a density of 0.89 g/ml. liquid b has a density of 0.72 g/ml. what would you ex
Burka [1]
In the given above, we have two densities which are 0.89 g/mL and 0.72 g/mL. We are also given that the liquids are immiscible. After the settlement of the liquids, they will form two layers.

The heavier substance, the one which has a higher density will be at the bottom and the lighter substance, the one which has a lower density will be at the top layer.
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3 years ago
Consider the reaction below. At 500 K, the reaction is at equilibrium with the following concentrations. [PCI5]= 0.0095 M [PCI3]
Dmitriy789 [7]

Answer: The equilibrium constant for the given reaction is 0.0421.

Explanation:

PCl_5\rightleftharpoons PCl_3+Cl_2

Concentration of [PCl_5] =  0.0095 M

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Concentration of [Cl_2] =  0.020 M

The expression of the equilibrium constant is given as:

K_c=\frac{[PCl_3][Cl_2]}{[PCl_5]}=\frac{0.020 M\times 0.020 M}{0.0095 M}

K_c=0.0421 (An equilibrium constant is an unit less constant)

The equilibrium constant for the given reaction is 0.0421.

6 0
3 years ago
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Which statement describes a reason to consider air a mixture? A) The major constituents of air are gaseous elements. B) The comp
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The correct answer is - A) The major constituents of air are gaseous elements.

With the statement ''the major constituents of air are gaseous elements'' we can easily conclude that the air is a mixture. The reason for that is that we have a plural usage of the word element, elements, which mean that there are multiple elements that make up the air.

The air is indeed predominantly a mixture of gaseous elements. The most abundant gas in the air being the nitrogen with 78.9%, oxygen with 20.95%, argon 0.93%, and carbon dioxide 0.04%, with lesser amounts of other gases also be present in it. The water vapor is also present in the air, though it is variable, being around 1% at sea level, but only 0.4% over the entire atmosphere.

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3 years ago
A baseball has a mass of 135 grams and a softball has a mass of 270 grams. In which of the following situations would they have
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Answer:

The baseball is thrown twice as fast as the softball in the same direction.

Explanation:

8 0
3 years ago
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