2. Petroleum is mainly composed of a compound called:
helium krypton sodium energy hydrocarbons
3. The law of conservation of energy states that:
energy cannot be destroyed energy cannot be created energy can be converted form one form to another none of the above
4. Which of the following is NOT a conventional definition of standard states?
the standard state of a gaseous substance is a pressure of 1 atm for a substance in a solution, the standard state is a concentration of 1 M for a pure substance in a condensed state, the standard state is the pure liquid or solid for a liquid, the standard state is STP for an element, the standard state is the form in which the element exists under 1atm and 25°C
5. 300. J of energy was released by solution A in a calorimeter. If the mass of solution A was 50.g and the T was 30.°C, what is its specific heat capacity.
.20 J/°C*g 20 J/°C*g 1.2 J/°C*g .7 J/°C*g none of the above
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