Chemistry, 22.04.2020 03:27 aliviafrancois2000
59.14
is the displacement of an object during a specific unit of time.
Answers: 1
Chemistry, 22.06.2019 02:30
If a 12-v battery is connected to a circuit that has a current of 3.0 a, what is the total resistance in the circuit? 36 ohms 4 ohms 0.25 ohms
Answers: 1
Chemistry, 22.06.2019 06:00
If you burn 10 kilograms of wood in a fire (combustion) what is the weight of the products after the fire has finished burning the wood?
Answers: 3
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
59.14
is the displacement of an object during a specific unit of time....
is the displacement of an object during a specific unit of time....
Computers and Technology, 30.03.2020 22:45
Computers and Technology, 30.03.2020 22:45
Mathematics, 30.03.2020 22:45