What do waves transfer?

Both matter and energy

Neither matter nor energy

Energy

Matter

Chromosomes are ?

During an experiment, an unknown substance gave the following results: Red litmus paper stayed red Blue litmus paper turned red pH paper turned red This substance is most likely: ou o Neutral Strong acid Strong base Weak base

What is paper chromatography?

Diana reaction that had a chemical change. Which two changes could be evidence of this change?

Which of the following statements is not true? O Negatively charged objects attract other negatively charged objects. o Positively charged objects attract negatively charged objects. Positively charged objects attract neutral objects.

Fatty acids consist mainly of carbon and hydrogen, and so fatty acids are a. nonpolar and do not dissolve in water. b. nonpolar and dissolve in water. c. polar and do not dissolve in water. d. polar and dissolve in water.

Consider the model of a sodium atom. An orange circle labeled upper N a is surrounded by three concentric circles. The innermost ring has dots at the north and south positions.

In the following reaction: Mg + 2HCl → MgCl2 + H2 How many liters of H2 would be produced if you started with 24.3 g of Mg?

How much heat, in calories, is given off when 1.25 grams of silver is cooled from 100.0°C to 80.0°C? (The specific heat of silver is 0.057 cal/g°C)

A. What is temperature really a measure of?