Which of these is a conversion from chemical energy to mechanical energy?

A. A dark light bulb starting to glow

B. A ball rolling down a hill

C. A person lifting a weight

D. A potato being heated in an oven

What is gene therapy used for?

Most crude oil is delivered from terminals to refineries by A. Tanker jets B. Cargo trains C. Underground pipelines D. Off shore drills

What is the difference between the nuclear reactions taking place in the sun and the nuclear reactions taking place in a nuclear reactor?

Benzene, C6H6, reacts with oxygen, O2, to form CO2 and H2O. How much O2 is required for the complete combustion of 1.0 mol C6H6?

Modern atomic theory states that atoms are neutral. How is this neutrality achieved? A. Equal number of neutrons and protons B. Equal number of protons and electrons C. More electrons than protons C. More neutrons than electrons

What form of energy provides power for a gas stove? A. nuclear energy B. electrical energy C. chemical energy D. sound energy Can you explain the answer for me?

Calculate the amount of HCN that gives the lethal dose in a small laboratory room measuring 12.0 ft*15.0 ft*8.60ft.

A certain ore is 34.4% nickel by mass. How many kilograms of this ore would need to dig up to have 30.0g of nickel?

Are the chemical reactions that take place when a battery connected endothermic or exothermic

What are 3 properties of carbon?