White light has no color.

False

True

Or false

How many joules are in 148 calories? (hint: 1 cal = 4.18 j)

How many moles are present in 1.75 g of zinc sulfate, Znso,?

A metal cylinder holds helium gas at the gift shop. When someone orders a balloon, a small amount of helium is transferred from the tank to the balloon.

Where are four places a body fossils naught be created.

Which of these is a body fossil? A. Dinosaur nest B. Shrimp burrow C. Leaf imprint D. Claw print

One method for preparing pure iron from Fe2O3 is by reaction with carbon monoxide. Fe2O3 (s) + CO (g) →Fe (s) + CO2 (g) How many moles of carbon monoxide are needed to react completely with 122 kg of Fe2O3.

A microspectrophotometer measures which of the following? Electrons Electricity Light absorption Pigments

Which symbol represent an isotope of carbon

7g of gold is heated from 17 degrees C to 42 degrees C. How much energy (heat) was used? The specific heat capacity of gold is. 031cal/gC.

Which of the following would a chemist be most likely to study? a leaf floating on water a leaf changing color in autumn a leaf being blown by the wind a leaf being eaten by insects