How does a homemade balloon barometer work and how does a real one work

1) which of the following is the general equation for a synthesis reaction? A) AB->A+B B) A+B->AB C) A+BC->B+AC D) AB+CD-> AD+BC 2) which of the following takes place during a redox reaction? A) Electrons are gained only. B) Electrons are lost only.

Which of the following are physical properties of a penny? Choose all that are correct. Select one or more:a. Slightly red in color. b. Conducts electricity very well. c. Reacts to oxygen when heated. d. Resists corrosion from most acids.

What term is used by chemists to quantitatively describe a solution in which a relatively small amount of solute is dissolved?

SiO2 + 3C - SiC + 2CO I need to add 8 moles of Carbon to the reaction. How many grams of Carbon should I weigh?

When 10 liters of a gas at 1 atm is compressed to 3 liters at constant temperature, what property of the gas changes?

What is the percent composition of sulfur compound that contains 20.8 g carbon and 54.4 g sulfur?

Which of the following is an example of heat transfer by conduction? A. The upstairs of a house being warmer than the downstairs B. Burning your finger on a hot match C. The sun warming your skin D. Being warmed by a fire on a cold night

How much did John save in his 401 (k) in the 2014 tax year?

Explain why the chemical released from the injured fish may not cause in a wa why the chemical released from the injured fish may not cause in alarm response in other fish species

hat historical figure was responsible for developing the system for categorizing living things that is still used today? A) Sir Isaac Newton B) Carolus Linnaeus C) Benjamin Franklin D) Galileo