How is matter classified?

chemical properties?

physical properties?

both a and b?

none of the above?

For the reaction x2 + y + z → xy + xz, it is found that doubling the concentration of x2 doubles the reaction rate, tripling the concentration of y triples the rate, and doubling the concentration of z has no effect.

C2h4 + O2 - CO2 + H2O If we start with 20 grams of CH4, how many moles of CO2 will form?

When do you start to pair up the electron dots?

An atom has 13 protons and 14 neutrons. What is its mass number?

How many moles are in 5.25 L of oxygen gas as stp

Write a sentence that uses the words "mass extinction" correctly

Which description is not a property of an acid? A turns litmus paper red B bitter taste C corrosive D dissolve metals

Concerning the 10.0 mL of 0.50 M NaCl diluted to 100 mL of solution: When a solution is diluted, does the dilution change the number of grams dissolved? yes no

What causes element name to change

Charles's law states that