5. Which of the following is a chemical reaction?

A Iron rusts

B. Water freezes

C. Sugar dissolves in water.

D. Salt and pepper are mixed in a dish.

6. Abby is trying to Identify different liquids based on their physical properties. She has 4

A student finds an object with a mass of 64.5 g and a volume of 14 cm3. Find the density of the object. Could the object be gold? (10 pts.

Water a combination of the elements hydrogen and oxygen, is an example of an

8 oz bottle of Dr. Pepper made with imperial cane sugar (C12H22O11) contains 27 g of sugar in 236.6 mL of water. What is the molarity of the solution with respect to cane sugar?

1. Earth's diameter is 12.756 kilometers. How many meters is this? 2. The diameter of Earth's moon is 3.476 kilometers. Express this distance in centimeters.

How do particles move?

Suppose you take a piece of hard wax from an unlit candle. After you roll the wax between your fingers for a while, it becomes soft. What State of matter is the softer wax? Is it possible for wax to change without changing state

Prevailing winds peru

Foods labeled "fat free" can actually contain less than 0.5 grams of fat.

Plants make their own food. The chemical reaction for this process is shown in the equation below. CO2 + H2O + energy → C6H1206 + O2 What are the products in this chemical reaction? O A. C6H1206 + energy O B. H20 + energy O C. CoH1206+02 O D.

Using ohm's law, explain how voltage changes in relation to current, assuming that resistance remains constant.