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Chemistry

Alvin Garcia

What is the oxidation number for as in as2o3?

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Chemistry

Kayden Hale

In the reaction of calcium with chlorine which atom is the oxidizing agent

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Chemistry

Villegas

Hydrogen gas is explosive within the given range of 4% - 75% v/v. Assuming that each student in your class produces 6L of H2 and that the lab is not ventilated, is there a danger of an explosion?

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Chemistry

Grayson Yu

Which list of elements contains only metals?

A. carbon, iodine, tin

B. tin, copper, carbon

C. cesium, iron, copper

D. iodine, carbon, argon

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Chemistry

Guest

In a scientific investigation what is the name for a prediction that can be tested

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Chemistry

Raegan Briggs

What is the formula of the hydride formed by magnesium?

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Chemistry

Vernon

Why are gasses elements on the periodic table?

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Chemistry

Lauren Burch

The gravitational force between two objects is 100 N

If the mass of each object is doubled, what is the

gravitational force between the objects at the same

distance?

a:25 N

b:50 N

c:200 N

d:0400 N

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Chemistry

Guest

Acid charge Perchloric acid ion

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Chemistry

Shayna Everett

Write the concentration equilibrium constant expression for this reaction. 2cui (s) + i2 (aq) → 2cu+2 (aq) + 4i - (aq)

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Chemistry

Abel Deleon

Chlorine gas has a pressure of 1.05 atm at 25°C. What pressure will it exert at 75°C?

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Chemistry

Kinsley

What is the justification required to make an arrest?

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Chemistry

Baby Maker

Why does the solution turn from yellow to blue?

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Chemistry

Guest

N two or more complete sentences describe all of van der waals forces that exist between molecules of water

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Chemistry

Elaina Riley

If 100 ml of some pb (no3) 2 solution is mixed with 100 ml of 6.50 x 10-2 m nacl solution, what is the maximum concentration of the pb (no3) 2 solution added if no solid pbcl2 forms? (assume ksp = 2.00 x 10-5 m at this temperature.) enter the concentration in m.

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