2 human activities that contribute to runoff into water systems

Why are significant figures important when gathering data in the laboratory?

When an acid and base neutralize each other what is made a. CO2 b. CH4 c. neutral salt water

How many significant figures does 104,000 have

5.00 g of hydrogen gas and 50.0g of oxygen gas are introduced into an otherwise empty 9.00L steel cylinder, and the hydrogen is ignitted by an electric spark.

How are electrons and positrons the same, and how are they different?

Oxygen, hydrogen, and water are substances. which of these substances are elements

Water has what type (s) of properties? a. physical onlyB. chemical onlyC. physical and chemical

1. Determine which object will SINK or FLOAT in water. Block #1 (3.2 g/mL) A. Sink Block #2 (0.02 g/mL) B. Float _Block #3 (0.98 g/mL) Block #4 (1.2 g/mL) Block #5 (2.4 g/mL)

The correct symbol for the ion formed by nitrogen is:

Which term describes the conversion of a solid directly to a gas, without passing through the liquid state?