The combination of gases that surrounds and protects the earth is known as

Classify each of the following as an exothermic or endothermic reaction: 1) 2H2 (g) + O2 (g) ⟶Δ2H2O (g) + 483.6kJ 2) 6CO2 (g) + 6H2O (l) + 15000kJ⟶C6H12O6 (aq) + 6O2 (g) 3) 2Al (s) + Fe2O3 (s) ⟶Al2O3 (s) + 2Fe (s) + 850kJ

What is the name of the compound having the formula (nh4) 2[cu (cn) 4]?

Boron has an average atomic mass of 10.81. One isotope of boron has a mass of 10.012938 and a relative abundance of 19.80 percent. The other isotope has a relative abundance of 80.

Newton's law of universal gravitation, the law of conservation of mass, the law of superposition, and the laws of thermodynamics are all examples of scientific laws because A. they have been approved and accepted by congress. B.

Liquid 1 reacts with liquid 2, producing a solid and a gas. using this scenario, which supports the law of conservation of mass?

The volume, in liters, of 538 g of CO2

What are two types of cold air masses that influence the weather in North America? Name them and describe their humidity.

Initial Volume (VI) Final Volume (Vf) = Object's volume =

Which statements are true about the linear inequality y > x - 2? Check all that apply

How is the Gobi Desert different from the Sahara Desert