If the heat involved in a chemical reaction has a negative sign,

A. heat is lost to the surroundings.

B. heat is gained from the surroundings.

C. no heat is exchanged in the process.

What does the atomic mass on the periodic table tell you?

If dynamite explodes what type of chemical reaction is it?

A balloon is floating around outside your window. The temperature outside is - 5 ∘C, and the air pressure is 0.700 atm. Your neighbor, who released the balloon, tells you that he filled it with 4.80 moles of gas.

2. A block of aluminum with a mass of 140g is cooled from 98.4oC to 62.2oC with a release of 1137J of heat. From these data, calculate the specific heat of aluminum.

How are acids and bases defined by arrhenius?

Becky leaves home and write a distance of 30 KM it took her 2.5 hours what is her speed

Describe the weather associated with a high presurre system

Which of the following is equal to distance/time?

Which of the following should you always wear to avoid being thrown from a vehicle and then crushed if it tips over?

If the titrant has a molarity of 0.1000 m and there are 45.00 ml of analyte present, what is the molarity of the analyte?