Which of these is a pure substance?

A. cake mix

B. ocean water

C. 10 carat gold

D. solid gold

Suppose an isolated box of volume 2V is divided into two equal compartments. An ideal gas occupies half of the container and the other half is empty.

What is the chemical name of SiF4? sulfur fluoride silicon fluoride sulfur tetrafluoride silicon tetrafluoride

Explain the concept behind multiverse

The newest CREE led has a life expectancy of mu = 50000 hours and its life probability density function is given by: f (t) = [e^ (-t/mu) ]/[mu] if t greater or = 0 and f (t) = 0 if t < 0.

What happens to a star after it becomes a supernova?

Nikolas, the fire extinguisher, and the skateboard have a combined mass of 50 kg. What force would the fire extinguisher have to produce to propel Nikolas if he wanted to accelerate at a rate of 1.

A set of data is collected from a simple circuit with a 20 resistor and is represented in the table

A skydiver of mass m jumps from a hot air balloon and falls a distance d before reaching a terminal velocity of magnitude v. Assume that the magnitude of the acceleration due to gravity is g. a.

8. What happens to force when mass is increased?

Give an example of ionic and covalent bond, and explain and make an example for each.