When an object that is moving slows down, which action must be occurring?

A.

balanced forces

B.

frictional force

C.

unbalanced forces

D.

gravity

What phase transitions occur as you uniformly increase the pressure on a gaseous sample of iodine from 0.010 atm at 185 ∘c to 100 atm at 185 ∘c?

Which substance has a coefficient of 2 when you balance the equation for this redox reaction? cu (s) + hno3 (aq) → cu (no3) 2 (aq) + no (g) + h2o (l) hno3 (aq) no (g) h2o (l) cu (s) ?

Scientists plan to place detection devices outside Earth's atmosphere to detect radiations from a star. Which of the following best explains the type of detection device that the scientists would use. a.

Why are alcohols classified as organic compounds?

Is MgO + CO2 - > MgO3 endothermic or exothermic?

Pieces of metal are welded together in an atmosphere of argon. Explain why an atmosphere of argon is used.

En que estado esta el nitrógeno en el cuerpo

Which sequence represents a correct order of historical developments leading to the modern model of the atom?

If you were designing a pot to cook spaghetti in, which parts would you make from good conductors of heat? which parts would you make from insulators? explain your answer.

1. Starting with 9.3 moles of O2, how many moles of H2S will be needed and how many moles of SO2 will be produced in the following reaction? SHOW YOUR WORK! 2 H2S + 3 O2 - > 2 SO2 + 2 H2O