Chemistry » Page 6

Chemistry

Chana

Which of the following solutions is the most acidic?

all of the solutions are basic

a solution with pH = 3

a solution with pH =

ggh

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Chemistry

Lilly Berg

What is the average atomic weight of silver

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Chemistry

Guest

Due to the octet rule carbon can form how many bonds?

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Chemistry

Eddie Mays

What is the percent CdSO4 by mass in a 1.00 m aqueous CdSO4 solution?

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Chemistry

Davon Nixon

A student prepares 150.0 mL of 1.40 M HCl using 35.0 mL of a stock solution. What is the concentration of the stock solution?

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Chemistry

Zane Foley

True or false? All atoms of the same element have the same atomic mass

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Chemistry

Bud

Write a balanced equation for the reaction of copper with silver nitrate. According to the balanced equation, what is the mole ratio of silver produced to copper reacted?

_ mol Ag produced : _mol Cu created

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Chemistry

Chris

Describe what happens to the potential energy if you increase the mass of the object.

IL

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Chemistry

Wendy Casey

The mass of the ocean is about 1.8 X 10^21 kg. If the ocean contains 1.076% sodium ion, Na+, what is the mass in kilograms of sodium in the ocean?

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Chemistry

Kiera

How many formula units are contained in 23.5 g of Sb2S3

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Chemistry

Nylah Meadows

How many nuclear power plants are there in pennsylvania?

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Chemistry

Izaiah Choi

Polar molecules are often able to dissolve in water because

a. The partially charged regions of polar molecules are able to form hydrogen bonds with water molecules.

b. The polar molecules repel each other, allowing them to interact with the water molecules.

c. The polar molecules attract each other, allowing water molecules to adsorb to them.

d. Polar molecules are able to fill their valence shells by transferring electrons from water molecules.

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Chemistry

Rodney Oneill

An evacuated reaction vessel is filled with 0.800 atm of N₂ and 1.681 atm of Br₂. When equilibrium is established according to the reaction below, there are 1.425 atm of Br₂ remaining in the vessel. What is the equilibrium partial pressure of NBr₃? 2 NBr₃ (g) ⇌ N₂ (g) + 3 Br₂ (g)

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Chemistry

Claudia Pittman

The accepted value is 1.43. Which correctly describes this student's experimental data?

TrialMeasurement11.2921.9330.88

Question 17 options:

accurate but not precise

precise but not accurate

both accurate and precise

neither accurate nor precise

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Chemistry

Flynn

6.

Which element has an atom with a total of three valence electrons?

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