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matthew set up an experiment to see if a fertilizer affects the growth of bean plants. matthew watered each of the 10 bean plants in group a with 50 milliliters of a

solution of distilled water and fertilizer. he watered each of the 10 bean plants in group b with 50 milliliters of distilled water only. he watered both groups of plants

every other day for 1 month and grown under the same conditions.

the control for matthew's experiment was

group a, only

group b, only

both group a and group b

neither group a nor group b

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Asubstance is a good conductor of electricity which of the following best explains a probable position of the substance in a periodic table

The two naturally occurring isotopes of chlorine are 35cl (34.969 amu, 75.77%) and 37cl (36.966 amu, 24.23%). the two naturally occurring isotopes of bromine are 79br (78.918 rm amu, 50.69%) and 81br (80.916 amu, 49.31%). chlorine and bromine combine to form bromine monochloride, brcl. 1. how many peaks will be present in a mass spectrum for brcl? the four combinations of molecule possible given these four isotopes are: 81br37cl, 81br35cl, 79br37cl, and 79br35cl. 2. what are the masses of the four different brcl molecules? express the masses using six significant figures, in decreasing numeric order (highest to lowest), separated by commas.

Which of the following is the molecular formula for a simple sugar? a. cooh b. h2o c. oh d. c6h12o6