What is the definition of a buffer

Which materials are made of more than one element

If an athlete weighs 133 lb and has 15.0 % body fat by weight, how many pounds of fat does the athlete's body contain?

If you have 6 moles of CH4 how many moles of H2O can be produced

Describe the motions of particles in three common states of matter

Which one of the following statements is not true? a. Basalt magmas, in general, have higher temperatures than rhyolite magmas. b. When magma reaches the surface, its dissolved gas content increases. c.

The molecules in a solid object A. flow freely around each other B. vibrate slowly C. are completely still all the time

How many moles of water can be obtained from the reaction of 4 moles of O2?

A solid white substance A is heated strongly in the absence of air. It decomposes to form a new white substance B and a gas C. The gas has exactly the same properties as the product obtained when carbon is burned in an excess of oxygen.

C). If 0.5 mole of oxygen (0,) reacted with hydrogen (H2), how many mole of water (H, 0) was produced from the reaction?

A cube has a depth of 10 cm. What is the volume of the cube? Or What is depth?