Which of the following are observations Pick all correct choices

The candle floats.

The tires are flat.

The dog is barking.

The tire is flat because of a decrease in temperature.

If a person walks by, then the dog will bark.

How many moles of pcl3 contain 3.68 * 1025 chlorine atoms?

Hydrocarbons having the same formula but variations in structure are called isomers. a. True b. False

What is the molarity of a 2.0 L sodium hydroxide solution containing 10.0 grams os solute?

Use this reaction: 3NaOH + H3PO4--> Na3PO4 + 3H20 How many mL of. 225 M NaOH will react with 4.568g H3PO4? The answer for this is 621 mL b) What is the maximum amount of Na3PO4 that is formed from the reaction of 25.00 mL of. 1050 M NaOH and 15.

5. Why are the poppy seeds placed in different places (not together) ?

Which describes the polarity in a water molecule? a). partial negative charge on the oxygen atom because its electrons are pulled toward the hydrogen atoms b).

To what temperature in kelvin will a 2.3 L balloon have to be heated to expand to a volume of 400 L Assume the initial temperature of the balloon is 25 degrees celsius.

In which changes of state do atoms lose energy?

Can you live without body tissue? This is a yes or no question, no explaining required, but you can add it if you want. : D

According to the graph, which activity has used the largest amount of water over the past twenty years?