How many grams of hydrogen are produced when 25.92 moles of hydrochloric acid (HCl) are reacted with excess copper?

An ecosystem includes the biotic and abiotic factors true false

Chromium-51 is a radioactive isotope used to label red blood cells to identify if they remain intact in the body. It has a half-life of 27.7 days. If 0.25 mg is an approximate dose amount, how much remains after 83.1 days?

Why does a chemical equation have to be balanced

What is an example of an irreversible physical change? melting an ice cube making sawdust crumpling paper boiling water

What changes in color occur when bromine and kmno4 reacts with an alkene?

Is a eagle a producer?

which of these pairs of elements is most likely to be a part of a polyatomic ion? k an cl li and br p and o Ca and O

An enzyme is a protein that acts as a catalyst in a chemical reaction that takes place in a living thing true or false

Three types of single called organisms

48g LiOH dissolved in 1.0 L of solution. calculate the molarity