What size container should you use when mixing chemicals

The police department is excited to have some new motorcycle units. one officer said that these motorcycles can go from 0 miles per hour to 80 miles per hour in just 6 seconds. the officer is describing the motorcycle's average speed. distance.

The density of water is determined by measuring the mass of a known volume of water. If you determined the density of a 25-mL sample of water, how many significant figures should you report if you used a s instruments?

Jeff conducted simple experiment on the effect of rising temperature on food. He concluded that while heat is useful for cooking food, it can lead to food spoilage if food is left outside in hot weather. He presented his results to his science class.

The combustion of gasoline produces carbon dioxide and water. assume gasoline to be pure octane (c8h18) and calculate the mass (in kg) of carbon dioxide that is added to the atmosphere per 1.7 kg of octane burned.

The nucleus is: a. the center of an atom c. specified by mass number b. specified by atomic number d. all of the above

A canister of acetylene has a volume of 42 L. The temperature of the acetylene is 305 K and the pressure is 780 torr. Determine the amount of gas in the canister

In terms of the scientific method, the purpose of an experiment is: form a hypothesis test a hypothesis form a conclusion develop data

Which layer of the earth can only be studied by indirect means

Is Euglena heterotroph or autotroph

What is the mass of 5000. atoms of silicon