If 89.6 joules of heat 20.0 grams of iron from 30.0 C to 40.0 C, what is the specific heat of the iron in J/g. C?

A spray can is used until it is empty except for the propellant gas, which has a pressure of 1344 torr at 23°C. If the can is thrown into a fire (T = 475°C), what will be the pressure in the hot can?

16. Which planet has a greater mass than the combined mass of all the remaining planets and their moons?

In an atom, protons plus neutrons make up the atom's

Which statement best describes electrons? (1) They are positive subatomic particles and are found in the nucleus. (2) They are positive subatomic particles and are found surroundingthe nucleus.

Chemicals become positively charged by

Give the formula %error = theoretical value - experimental value / theoretical value * 100 calculate the percent error for the experiment.

A baker touches a pie right after taking it out that of me which statement best explains why the pie feels hot

A scientist discovers a new type of polymer. What must be true about this polymer? A. It contains carbon atoms arranged in a ring structure. B. It has double bonds between all the carbon atoms. C. It contains molecules of many different types. D.

A line in the lyman series of hydrogen has a wavelength of 122 nm. from what state did the electron originate?

What are the products of photosynthesis? A. Glucose and oxygen B. Oxygen, solar energy, and glucose C. Carbon dioxide, water, and solar energy D. Hydrogen, oxygen, and carbon