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Chemistry

How many times does the citric acid cycle occur for each molecule of glucose?

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Chemistry

Which planet is made of mostly gas

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Chemistry

What is the molar mass of al (clo2) 3

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Chemistry

Neon belongs to what family

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Chemistry

Based on the passage, where in the United States would a physician encounter the most cases of SAD?

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Chemistry

Draw the alkyne formed when 3,4-dichloroheptane is treated with an excess of strong base such as sodium amide

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Viviana Gregory

Chemistry

A penny has a mass of 2.50g and the moon has a mass of 7.35 X 10^22

Use this information to answer the questions below. Be sure your answers have the correct number of significant digits.

What is the mass of 1 mole of pennies?

How many moles of pennies have a mass equal to the mass of the moon? Write your answer as a decimal, and round to one place?

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Chemistry

If a car tire has a diameter of 3232 inches, what is the approximate circumference of the tire?

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Chemistry

9)

Bettina spoke into a microphone during the school play to increase the sound of her voice so the audience could hear her speak. The loudness of Bettina's voice was changed by what type of energy?

A) sound energy

B) stored energy

C) electrical energy

D) potential energy

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Chemistry

Explain what happens to the average kinetic energy thermal energy and temperature of a substance when the particles in the substance slows down

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Chemistry

Which of the following could be used to describe the rate of a reaction?

change in time/change in concentration

change in mass/change in concentration

change in concentration/change in time

change in concentration/change in mass

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Jefferson Santana

Chemistry

Planet X is a planet in our solar system. Planet Y is a dwarf planet. Identify their characteristics.

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Chemistry

3/4 / 100 as a decimal and a percentage?

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Chemistry

What is the net ionic equation for AgNO3 (aq) + Na2SO4 (aq)

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Chemistry

What does it take to prove a hypothesis false?

O

A. It is impossible to prove a hypothesis false

O

B. At least ten examples

O

C. One counterexample

O

D. A poorly stated question

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