What type of reaction produces a metal from its metal oxide

In the reaction shown what is Br2? 2H2O2 + Br2?2H2O + O2 + Br2

Is copper wire a mixture or a pure substance?

Which is not a physical property of water? weak adhesion with glass strong cohesion strong surface tension ability to move up through thin tubes?

List the states of matter in order from greatest kinetic energy to least kinetic energy.

The 3 types of heat transfer are convection, radiation, connected. A. True B. False

Planck's constant is approximately equal to which of the following? The product of the uncertainties in electron position and electron momentum. The sum of the uncertainties in electron position and electron momentum.

Which is the MOST accurate description about how the different types of feedback mechanisms work

Which of the following equations violates the law of conservation of mass? A) 2Al + 6HCl yields 2AlCl3 + 3H2 B) Na2C2O4 + Pb (NO3) 2 yields PbC2O4 + 2NaNO3 C) AgNO3 + LiCl yields AgCl + LiNO3 D) 3Ca + 2Cr (NO3) 3 yields 3Ca (NO3) 3 + 2Cr

Which of the following is a true statement about energy? a. energy can be created and destroyed. b. energy is never created nor destroyed. c. energy is easily created, but cannot be destroyed. d. energy cannot be converted from one form to another.

What does a reaction rate tell you