Oxygen is an element.

A chemist has a block of lead metal (density is 11.3 g/mL). The block weighs [x].70 g. What is the volume of the lead block in mL? Show your work.

Ice cream is a pure substance.

How many significant figures are in the number 14.72?

Calcium is an example of a(n)

Which of the following terms describes what a doctor forms when treating patients prior to ordering medical tests?

How many significant figures are in the number 4.500?

Which one of the following is an example of a homogenous mixture?

Lead melts at 601.0 oC. What temperature is this in oF? Show your work.

Eggs are transported from a poultry farm using trucks. Each truck carries cartons of eggs, with each carton containing 18 eggs. These cartons are then placed in crates, and each crate can hold up to 25 cartons. A total of 4,255 crates are loaded onto trucks to transport the eggs. Now, let’s determine how many truckloads would be needed to transport 4.25 million eggs. Show your work using dimensional analysis.