Which number represents a basic pH, 4 or 9

What physical properties affect an object's gravitational pull? a) weight b) size c) shape d) all of the above

There are many ___ about ghost ships & sea monsters

A. 24.5 g of ammonia NH3 = how many moles of ammonia? . b How many molecules of ammonia is that from 22. a.?

What causes the trade winds?

In solids, the particles of matter are not in constant motion. True or False? First to answer and get it correct will get the ''Brainliest Answer''

How much heat is needed to raise the temperature of 75 g of a substance by 15 C when the specific heat is 0.92 J/g-C?

A nitric acid solution flows at a constant rate of 5L/min into a large tank that initially held 200L of a 0.5% nitric acid solution. The solution inside the tank is kept well stirred and flows out of the tank at a rate of 10L/min.

How many molecules are in 237g (about a cup of water)

3. A compound was analyzed and found to contain 9.8 g of nitrogen, 0.70 g of hydrogen, and 33.6 g of oxygen. What is the empirical formula of the compound?

A 126-gram sample of titanium metal is heated from 20.0°C to 45.4°C while absorbing 1.68 kJ of heat. What is the specific heat of titanium?