Which of the following is NOT an indicator of a chemical reaction? A. Producing a solid B. Changing color C. Breaking into small pieces D. Producing light

The list of traits describes a typical pine tree. Which trait is caused by the environment, not genetics? A) bark cracked and gray B) treelike growth pattern C) sheds needles in dry conditions D) height varies between 20 and 30 feet

Calculate the molar mass of a gas that diffuses three times faster than oxygen under similar conditions.

All of the following show a periodic pattern except A. the dog ate everyone of his play toys B. The lawn is mowed every thursday C. Their are 12 months in ayear D. Their are 60 seconds in a minuite

what is the molarity of the solution formed when 7.88 grams of NaCl is mixed with enough water to make 350. mL of solution?

A single-element cation and a single-element anion create what type of ionic compound

Which topic is not included in the study of physical geology A) How earth's mantle was formed B) how volcanoes are formed C) How soil erosion destroys farmland D) how earthquakes effect buildings

A block as a mass of 585 g and a volume of 13 cubic centimeters. What is its density, show your work

whwn placed in solution an inorganic substance dissociates completlt forming hydtogen ions and anions

Molarity of 11.0 L of a 2.8 M Ca (OH) 2 solution?

Identify the independent and dependent variables. Peter is conducting an experiment to see how much salt will dissolve in water as the temperature of the water is increased.