Write the formula for the polyatomic ion in NaNO3. Express your answer as an ion.

In an exothermic reaction: A. The forward reaction is slower than the reverse reaction B. the reaction rate will speed up with time. C. the collision energy of the reactants will be greater than that of the products D.

Which element would be the most reactive with K? Br, Na, Ar, or O? And how do you know?

The molecular weight of potassium ferricyanide is 329.24 grams/mol. How would you make 1 liter of a 500mM potassium ferricyanide solution?

Gaseous butane reacts with gaseous oxygen gas to produce gaseous carbon dioxide and gaseous water. what is the theoretical yield of water formed from the reaction of of 5.23 g butane and of 27.1 g oxygen gas? round your answer to significant figures.

Facts about heat absorption and simple questions about heat absorption with answer

Categorize the following materials: bronze alloy, mouse growing an ear on its back, porcelain dentures

A decomposition occurs when you open a can or bottle of soda. Carbonic acid. H. CO, is in carbonated beverages. It decomposes into carbon dioxide and water.

Can someone reword this? A magnetic substance has magnetic fields. These fields start at the North Pole wrap around the magnet, and terminate at the south pole of the magnet. All magnetic substances have north and south poles

Which of these is produced when fossil fuels are burned? A) oxygen Eliminate B) nitrogen C) hydrogen D) carbon dioxide

Predict the sign of ΔSsys for each of the following processes. Which are positive? (a) Gasoline vapors mix with air in a car engine. (b) Hot air expands. (c) Humidity condenses in cold air.