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Chemistry

Alisha Saunders

When water freezes it forms a lattice pattern and?

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Chemistry

Amare

A solution of iron chloride has a density of 1.118g/mL. what volume of solution would have a mass of 1.75kg?

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Chemistry

Guest

Write the expression for the equilibrium constant for the reaction represented by the equation

CaCO3 (s) ⇌ Ca2 + (aq) + CO3 - (aq). Is Kc > 1, < 1, or ≈ 1? Explain your answer.

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Chemistry

Jaydin Drake

Assuming that pressure and temperature are constant, how many liters of oxygen gas will be required to produce 0.160 L of nitrogen gas. 4 NH3 (g) + 3 O2 (g) → 6 H2O (g) + 2 N2 (g)

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Chemistry

Javion Bond

Aluminum flouride + sulfuric acid=

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Chemistry

Petersen

As glucose is oxidized, how many times do the Krebs (citric acid) cycle turn, and how much NADH, FADH2 and ATP is produced during this process?

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Chemistry

Guest

The following table shows the period of revolution of some unknown planets of equal mass.

Period of RevolutionPlanet Period of Revolution

W 1.9 years

X 11.8 years

Which of the following best explains which planet is farther from the sun?

Planet W, because gravity is inversely proportional to the square of distance

Planet X, because gravity is inversely proportional to the square of distance

Planet X, because the sun exerts a greater gravitational force on it than on planet W

Planet W, because the sun exerts a greater gravitational force on it than on planet X

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Chemistry

Guest

The nucleus of an atom holds 4 neutrons and 4 protons, how many electrons does it have

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Chemistry

Guest

What types of atoms are in nh3 or ammonia how many hydrogen and how many nitrogen

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Chemistry

Korbin

A piece of wood near a fire is at 23°C. It gains 1,160 joules of heat from the fire and reaches a temperature of 42°C. The specific heat capacity of

wood is 1.716 joules/gram degree Celsius. What is the mass of the piece of wood?

ОА. 16 g

OB. 29 g

ОC. 36 g

OD. 61 g

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Chemistry

Marco Young

Which of the following is a viable possibility for a liquid particle that loses energy? (select all that apply)

the liquid particle may become a gas particle

the liquid particle may become a solid particle

the liquid particle may become a slower moving liquid particle

the liquid particle may become a faster moving liquid particle

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Chemistry

Yareli

What is true of the bottom layer of the ocean?

Select the two correct answers.

A. It has the largest plants.

B. It has the lowest salinity.

C. It has the greatest density.

D. It has the coldest water.

E. It has the most sunlight.

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Chemistry

Malachi Dunlap

Which sae standard (s) must be referred to on the label of approved hfc-134a refrigerant recycling machines?

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Chemistry

Gustavo Mcbride

What is the final concentration if a 50.0 mL sample of a 15% H2SO4 solution is added to water to give a final volume of 250 mL?

1.5% H2SO4 solution

25% H2SO4 solution

10% H2SO4 solution

3% H2SO4 solution

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Chemistry

Nathaniel Owen

The equation below shows how hydrochloric acid (hcl) ionizes in aqueous solution. based on this equation, what can you infer about the acid ionization process?

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