Which type of substance is graphene? ( need explanation please )
A. atom
B....
Chemistry, 26.02.2020 22:58 morganamandro9437
Which type of substance is graphene? ( need explanation please )
A. atom
B. Mixture
C. Molecule
D. Compound
Answers: 1
Chemistry, 22.06.2019 04:30
How much energy is made when a pice of wood burns. how do you know
Answers: 2
Chemistry, 22.06.2019 11:40
Modern pennies are composed of zinc coated with copper. a student determines the mass of a penny to be 2.482 g and then makes several scratches in the copper coaling (to expose the underlying zinc). the student puts the scratched penny in hydrochloric acid, where the following reaction occurs between the zinc and the hcl (the copper remains undissolved): zn(s) + 2 hcl(aq) → h2(g) + zncl(aq)the student collects the hydrogen produced over water at 25 °c. the collected gas occupies a volume of 0.899 l at a total pressure of 79 j mmhg. calculate the percent zinc (by mass) in the penny. (assume that all the zn in the penny dissolves.)
Answers: 1
Chemistry, 22.06.2019 22:00
Ill give u brainliest pls how is mass of carbon conserved during cellular respiration
Answers: 1
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