Rick runs 100 feet in 20 seconds what's his speed?

If 6.24 L of a gas at 45.0°C is cooled until its volume decreases to 5.17 L, what is the temperature of the gas in degrees Celsius

Some volcanoes have explosive eruptions, like the one at Mount St. Helens in 1980. Eruptions like these can cause abrupt changes to Earth's surface. Which of these could result from an explosive volcanic eruption? A.

Which of the following describes the formation of an ionic bond? atoms with like charges combine to form ions. two ions combine and share electrons equally. neutral atoms combine to form a stable molecule.

A 0.500-mole sample of a gas has a volume of 11.2 liters at 273 k. what is the pressure of the gas? (hint: use ideal gas law equation)

What is the molecular formula of the compound CH2 with molar mass = 42.0 g/mol? C4H8 C3H6 C2H4 C2H18

Consider the balanced equation K, Croa (aq) + Pb (NO3) 2 (aq) → PbCrO4 (s) + 2KNO3 (aq) If 25.0 ml of a 1.00M K, Cro, solution is mixed with 10.0 ml of a 0.500M Pb (NO3) 2 solution. a. How many moles of potassium chromate are present? b.

Name 3 organisms that would be classified as eukaryotic, multicellular, and heterotrophic.

A bond formed by electrical attraction between two oppositely charged ions is called

Which indicator is blue in a solution that has a pH of 5.6? (1) bromcresol green (3) methyl orange (2) bromthymol blue (4) thymol blue

A hot meal plate at 150 has been placed in air at room temperature. Which event would most likely take place over the next few minutes