A variable is something that can never be changed in an experiment.

False

True

The by-product of the chlorination of an alkane is

If the percentage ionization of an 0.10 M acid is 3.0%, what is its pH 3.52 1.52 2.52 0.52

Weird type of bond. (show work) Agl CdSn HS Pb2S2 Cl2 KSn TIO2

The Safe Drinking Water Act (SDWA) sets a limit for mercury-a toxin to the central nervous system-at 0.002 mg/L. Water suppliers must periodically test their water to ensure that mercury levels do not exceed 0.002 mg/L.

Which agent of erosion is mainly responsible for the formation of the depressions occupied by the finger lakes and kettle lakes found in NYS? alior

Is an american alligator a autotroph?

A/1 * B/C = D, You find yourself with 17 guilders (a gold coin) but you are planning on taking a trip to a country where the local currency is the florin. The current exchange rate is 2 guilders for every 3 florins.

The burning of wood in a fireplace generates heat and light in the form of flames. Which of the following terms best describes this type of reaction? a. condensation reaction b. exergonic reaction c. endergonic reaction d.

How are the number of protons and the number of neutrons related?

If a sample of copper with a density of 8.90 g/cm3 displaces 13.0 mL of water when placed in a beaker, what is its mass? a 1.46 g b. 0.685 g c. 116 g