4. If the heat capacity of an object is known, what other information will need to be known to calculate its specific heat capacity? O its volume
OIts energy
O its mass
O its temperature

Acylinder is filled with 2.00 moles of nitrogen, 3.00 moles of argon and 5.00 moles of helium. if the gas mixture is at stp, what is the partial pressure of the argon

Is 9 correct? and can someone me with 10? it’s due tomorrow, you

Which statement is true about a catalyst? a: a catalyst decreases the rate of the reaction. b. a catalyst is consumed during a chemical reaction. c. a catalyst lowers the activation energy of a reaction. d. a catalyst increases the reactant concentration during a reaction.