I RLY NEED HELP RN Balance the following chemical equations:

1) AgNO3 + KCl AgCl + KNO3

2) H2O + SO3 H2SO4

3) KI + Cl2 KCl + I2

4) NaHCO3 Na2CO3 + H2O + CO2

5) Zn + HCl ZnCl2 + H2

6) BaCl2 + Na2SO4 BaSO4 + NaCl

What are the 4 phases of matter in order of increasing engery content?

Diffraction is when light is bent around obstructions. which of the these observation about clouds would indicate diffraction? a) after rain storms, you can sometimes see rainbows. b) clouds are white or gray and cannot be seen through. c) on a cloudy day, the temperature tends to be cooler than a sunny day. d) the edges of dark clouds appear lighter. this

How many grams of mgbr2 are needed to produce 75g or metal?