Which type of rock forms as a result of cooling and crystallization? a) clastic b) metamorphic c) sedimentary d) igneous

The universe contains billions of galaxies, each containing billions of stars. True or false

If a original sample of radioactive uranium-238 had a mass of 400 grams, what is the total amount of the uranium-238 sample that would be left after 9 billion years?

How does the eruption of a volcano lower the atmospheric temperature?

In chemistry, what is the definition of the term salt? a compound consisting of an anion from an acid and a cation from a base a compound that ionizes in water to form a neutral solution a compound that receives hydrogen ions in an acid-base

The elements helium and xenon are all part of the same

Is a gas that is produced by the ultraviolet radiation in the air in the vicinity of welding operations?

How much MnO2 (s) should be added to excess HCl (aq) to obtain 295 mL of Cl2 (g) at 25 °C and 735 Torr?

Why do people describe water as a universal solvent

What is litmus paper used for? To indicate if all the reactants have been used up to determine if a chemical reaction has occurred to determine pH to detect the presence of water

You open your lemonade stand with 100 lemons, 5 bags of sugar containing 6 cups each, and 10 gallons of water (16 cups per gallon). Which statement is NOT true about the production of lemonade in your stand?