What is the mass of 0.250 moles of tungsten

What type of inter-molecular forces are present in C12H22o11 (AKA sugar)

What happens to friction if the force pushing surfaces together increases?

How much heat is evolved in converting 1.00 mol of steam at 140.0? C to ice at - 45.0? C? The heat capacity of steam is 2.01 J / (g? C) and of ice is 2.09 J / (g? C).

Is 3Fe + 4H20 → Fe3O4 + 4H2 a balanced chemical reaction?

A buffer solution is prepared by mixing 1.00 L of 0.050 M pentafluorobenzoic acid (C6F5COOH) and 1.00 L of 0.060 M sodium pentafluorobenzoate (NaC6F5COO). The Ka of this weak acid is 0.033. Determine the pH of the buffer solution.

What form of energy provides power for a gas stove? A. nuclear energy B. electrical energy C. chemical energy D. sound energy Can you explain the answer for me?

Calculate the amount of HCN that gives the lethal dose in a small laboratory room measuring 12.0 ft*15.0 ft*8.60ft.

A certain ore is 34.4% nickel by mass. How many kilograms of this ore would need to dig up to have 30.0g of nickel?

Are the chemical reactions that take place when a battery connected endothermic or exothermic

What are 3 properties of carbon?