Which of the following isa harmful waste material that leaves the blood and travels through the lungs before leaving the body?

Which property of table salt is also a property of other ionic compounds

Which coefficients balance this equation? _H2 + _N2 - > _NH3 A. 1, 2, 3 B. 2, 3, 2 C. 3, 1, 2 D. 4, 1, 3

Question 1: A substance that is soluble in two liquids and makes an emulsion last longer is called what? Question 2: What is the process called that reduces the size of particles so emulsions will last longer?

Which one of the following represents a decrease in entropy? a) The evaporation of perfume. b) The sublimation of carbon dioxide. c) The melting of ice. d) The condensation of steam on a kitchen window.

Calculate the energy change for the reaction K (g) + Br (g) → K + (g) + Br - (g) given the following ionization energy (IE) and electron affinity (EA) values IE EA K: 419 kJ/mol 48 kJ/mol Br: 1140 kJ/mol 324 kJ/mol

Why does acids that has been accidentally spilled on a book cause the colour of the book cover and the ink to change?

How many moles of H2O will be required to make 19.2 moles of O2

Calculate the energy required to heat 406.0mg of cyclohexane from 33.5°C to 38.9°C. Assume the specific heat capacity of cyclohexane under these conditions is 1.85·J·g^-1K^-1. Be sure your answer has the correct number of significant digits.

Is nitrogen flammable? If so i want to build a patao gun using it as my fuel

What's the chemical formula for iron (ii) nitride