What scientist defined the universal law of gravitation? A. Joanne's Kepler B. Edwin Hubble C. Nicolas Copernicus D. Isaac newton

If 95.2 grams of C4H9N were reacted with 446 grams of O2 how many grams of CO2 would be produced 4C4H9N + 29O2 = 16CO2 + 18 H2O + 4NO2

When scientists look at these examples, what do they know about the atoms? Carbon-12 Carbon-14 A. The number of neutrons in each atom is not the same. B. The atoms have different properties. C. One atom has more protons than the other. D.

What is a conductor/insulator? and how do they work?

80g of sodium hydroxide reacts with excess sulfuric acid to produce 142g of sodium sulfate. What mass of sodium hydroxide would be needed in order to make 50g of sodium sulfate?

What is the state of matter for Fe?

What determines the horizontal arrangement of the periodic table?

A 55.3 g sample of lead heated and then quenched in a 175g sample of water. During the quenching reaction the temperature of the water increases from room temperature, 25.0 °C, to 42.6 °C.

What conclusion can you draw from this experiment about the components of the black ink

How does the size of ions affect the conductivity of a solution?

How to write complete ionic and net ionic equations?