PLEASE HELP ME
WILL GIVE BRAINLIEST TO THE
The density of chocolate is 1....
Answers: 3
Chemistry, 21.06.2019 18:00
When the following equation is balanced using the smallest possible integers, what is the coefficent of oxygen gas? c7h16o(g) + o2(g) → co2(g) + h2o(g) -1 -5 -8 -16 -21
Answers: 3
Chemistry, 22.06.2019 09:40
How many grams of aluminum will there be in 98g of al2o3?
Answers: 1
Chemistry, 22.06.2019 10:30
Use this information to determine the number of calends electrons in the atoms. which of the following correctly compares the stability of the two atoms? a) both are unreactive b) both are highly reactive c) a is unreactive and d is reactive d) a is reactive and d is unreactive
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
Mathematics, 18.03.2021 21:50
Mathematics, 18.03.2021 21:50
History, 18.03.2021 21:50
History, 18.03.2021 21:50
History, 18.03.2021 21:50
Mathematics, 18.03.2021 21:50
English, 18.03.2021 21:50
Mathematics, 18.03.2021 21:50
Advanced Placement (AP), 18.03.2021 21:50
Biology, 18.03.2021 21:50
Mathematics, 18.03.2021 21:50