Which of the following chemical equations is NOT correctly balanced?

N2 + H2 - - > 2 NH3

HCl + NaHCO3 - - > CO2 + H2O + NaCl

C2H5OH + 3O2 - - > 2CO2 + 3H2O

4NH3 + 5O2 - - > 4NO + 6H2O

If 1.0 liters of 0.40 M KOH are diluted to 3.0 liters what is the new concentration?

The Sun is a main sequence star. During the last stage of its life cycle, it will become a white dwarf. It will shrink in size, but it will be very hot. Which of the stars in your chart do you think is a white dwarf and why?

What is the density of a mineral with a mass of 41.2g and a volume of 8.2 cm?

What is the nuclear equation for the beta decay of Bi-213?

Do all cells have the same function

What is the best name for the molecule below? a compound with 10 total carbons with a double bond and the rest single bonds.

What Word means the gradual change and build up of organisms in an enviroment

If you see the Sun is high in the sky, what can you say about the SUN as viewed from the opposite side of Earth at the same moment?

What element has 8 valence electrons

Which of the following best describes a metal? Brittle, shiny, and solid Brittle, dull, and low density Malleable, shiny, and able to conduct heat or electricity Malleable, dull, and solid, liquid, or gas at room temperature?