Question 1. count sergei lvovich levitsky invented which of the following? a) collodion processb) digital imaging c) dry plates. d) bellows camera. question 2. what substance was the first photograph made from? a) bitumen b) silver. c) lemon juice. d) acidic acid. question 3. the first commercially available digital camera was which of the following? a) kodak dcs 100 b) kodak brownie c) leica 1000 d) none of the above.

Match the following vocabulary terms to their definitions. 1. amount of energy required to change 1 gram of material from the solid to the liquid state at its melting point 2. a measure of the kinetic energy of the particles of a substance 3. the amount of heat energy required to raise the temperature of 1 gram of liquid water from 14.5°c to 15.5°c 4. amount of energy required to change 1 gram of material from the liquid to the gaseous state at its boiling point 5. the amount of energy required to change 1 gram of a substance 1°c a. temperature b. latent heat of vaporization c. latent heat of fusion d. calorie e. specific heat

How many moles are in 7.2 x 10^23 carbon molecules? (*round to the nearest hundredth and include the unit "mol c" after your number) question 6 options:

Which of the following is in the lanthanide family? a) uranium b) promethium c) silver d) gold