Does molecular oxygen have a positive charge, negative charge, or no charge?

Although water levels drop, the amount of water om Earth remains the same-just in different forms. True or False

As matter changes state from solid to liquid, what statement can we make about the attractive force between its molecules? A) It decreases. B) It increases. C) It remains constant. D) It varies depending on location.

Which of the following is a nonferromagnetic material? (a) aluminum (b) iron (c) cobalt (d) gadolinium

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How fr do you think you would go on a car while sneezing for 2.5 seconds?

When a 3.50-g sample of liquid octane (c8h18) is burned in a bomb calorimeter, the temperature of the calorimeter rises by 27.3 ∘c. the heat capacity of the calorimeter, measured in a separate experiment, is 6.22 kj/∘c?

Air has pressure because a. the stratosphere is thick b. air has mass c. wind moves the air d. temperature warms the air

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Which states the law of conservation of energy? A. Energy cannot be created or destroyed, but it can be converted or changed into different forms. B. Energy can be created or destroyed, and it can be converted or changed into different forms. C.

What is density? How can you find density?