One molecule of a compound weighs 2.93 10–22 g. The molar mass of this compound is:
A)
2.06...
Answers: 2
Chemistry, 22.06.2019 08:20
What is the formula for the compound dinitrogen pentoxide? a. n4o5 b. n5o4 c. n4o6 d. n5o2 e. n2o5
Answers: 3
Chemistry, 22.06.2019 10:30
Which of these is not an example of chemical weathering? a. iron-rich mineral rusting b. feldspar turning into clay c. limestone reacting with acid d. granite breaking up into sand
Answers: 1
Chemistry, 22.06.2019 18:00
What amount of heat is exchanged when 106.2 grams of substance y goes from a liquid at 35 degrees celsius to a solid at the same temperature? melting point of substance y = 35 degrees c; δhvaporization = 3.67 j/mol; δhfusion = 3.30 j/mol. mwsubstance y = 28.22 g/mol. −12.4 j −3.51 x 102 j 1.24 x 101 j 351 j
Answers: 1
Chemistry, 22.06.2019 20:20
The characteristics of two different types of reactions are shown below: reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of an element. which statement is true about the atoms of the elements that participate in the two reactions? their identity changes in both reaction a and reaction b. their identity changes in reaction a but not in reaction b. their identity changes in reaction b but not in reaction a. their identity remains the same in both reaction a and reaction b.
Answers: 1
Social Studies, 06.01.2021 01:00
Mathematics, 06.01.2021 01:00
Social Studies, 06.01.2021 01:00
Mathematics, 06.01.2021 01:00
Mathematics, 06.01.2021 01:00
Arts, 06.01.2021 01:00
Mathematics, 06.01.2021 01:00
Mathematics, 06.01.2021 01:00
Mathematics, 06.01.2021 01:00
English, 06.01.2021 01:00
English, 06.01.2021 01:00
English, 06.01.2021 01:00
Arts, 06.01.2021 01:00
Mathematics, 06.01.2021 01:00
Computers and Technology, 06.01.2021 01:00