Which of the following would be used to measure the amount of matter in an object?

Weight

Density

Mass

Gravity

The specific heat of ethanol is 2.44 J/g ֯C. How many kJ of energy are required to heat 50.0 grams of ethanol from - 20 ֯C to 68 ֯C? (heat equation)

How are simple cations and anions named?

A monatomic ideal gas expands slowly to twice its original volume, doing 340 JJ of work in the process. Part APart complete Find the heat added to the gas if the process is isothermal.

A gas at 127०C and 10.0 L expands to 20.0 L. What is the new temperature in Celcius? (HINT: You need to convert to Kelvins solve then convert answer back to ०C)

Would copper exist in a monatomic form, a lattice or as molecules?

Can you zooley answers.

Select all that apply. Based on the properties that change in a chemical reaction, which are examples of chemical changes? baking a cake burning firewood leaf color from summer to fall shredding paper

Chemistry is the study of matter true or false

Which of the following reactions are redox reactions? a. Al (s) + 3Ag + (aq) →Al3 + (aq) + 3Ag (s) b. SO3 (g) + H2O (l) →H2SO4 (aq) c. Ba (s) + Cl2 (g) →BaCl2 (s) d. Mg (s) + Br2 (l) →MgBr2 (s)

How many liters of water are required to dissolve 1.00 g of barium chromate? express your answer in liters to three significant figures?