H2 + O2 - --> H2O

Classifying reaction

What is the change in the enthalpy of 120 g/s acid heated in a double pipe heat exchanger from 25°C to 100°C, if the average heat capacity at constant pressure is 0.50 cal/g°C?

A certain material has a mass of 12.48 g while occupying 12.48 cm3 of space. What is this material?

What do u need to know to describe the velocity of an object?

How the relative density of a substance is related to the density calculate the density of iron if its relative density is 2 and a density of water is 2gcm - 3

Lithium iodide has a lattice energy of - 7.3*102kJ/mol and a heat of hydration of - 793kJ/mol. Find the heat of solution for lithium iodide. Determine how much heat is evolved or absorbed when 10.0g of lithium iodide completely dissolves in water.

How much greater is the energy produced by a fusion reaction compared to a chemical reaction?

True or false. A bond between a metal atom and a nonmetal atom is likely an iconic bond

What is a precipitate? It is a liquid that forms from solution during a chemical reaction. It is a reactant that forms from solution during a chemical reaction. It is a solid that forms from solution during a chemical reaction.

The electron configuration for an atom is 1s22s22p2. How many electrons does the atom have? 4 2 6 5

When a piece of sodium carbonate reacts with dilute HCl, a gas X is produced. When gas X is passed through lime water then the solution turns milky and a white precipitate Y is formed a. Write the chemical formula of X, Y and (3) b.