Some common substances used in the laboratory are listed in the table. the chemical formulas of the substances are also listed beside their names. q:

a. how many of the listed items are elements?

a. 3

b. 4

c. 5

d. 6

How are pennies and isotopes different

According to the kinetic-molecular theory, how do gas particles behave? Group of answer choices They are in constant motion. They have different shapes. They have different colors. They have constant contact with each other.

The water cycle includes the circulation of all of the water on Earth. Which of these would be included in the water cycle?

Glacial striations have been found in South America, South Africa, India, and Australia. What do these marks tell scientist?

Which layer of the Earth is believed to have the most nickel?

What is 0.00055030 in Scientific form?

What happened to the rate of the forward reaction and the rate of the reverse reaction as time progresses. Describe the rates when the reacion reaches equilibrum.

During which phase of the moon do neap tides occur? O full O gibbous O new quarter

What is called what a scientist personal opinion affects the way experimental results are reported? A. Bias B. Classifying C. Inductive reasoning D. Procedure

Coffee is decaffeinated industrially using supercritical (sc) CO2. One advantage to using scCO2 is that the polarity of the supercritical fluid can be tuned by varying temperature, pressure and cosolvent additives.