Chemistry, 12.05.2021 01:00, machucajazz34182
Magical
A student investigated the law of conservation of mass.
The law of conservation of mass states that the mass of the products is equal to the mass
of the reactants.
mical reactions
This is the method used.
1. Pour lead nitrate solution into a beaker labelled A.
2. Pour potassium chromate solution into a beaker labelled B.
3. Measure the mass of both beakers and contents.
4. Pour the solution from beaker B into beaker A.
5. Measure the mass of both beakers and contents again.
When lead nitrate solution and potassium chromate solution are mixed, a reaction takes
place.
This is the equation for the reaction:
Pb(NO3)2(aq) + KaCros(aq)
PbCrO4(s) + 2KNO3(aq)
(a)
What would the student see when the reaction takes place?
Answers: 3
Chemistry, 21.06.2019 17:50, josegalvan123jg69
Which statement is a reason to support population regulation? a) it is unethical for us to control birth control rates b) humans have the freedom to produce as many children as desired c) the gap between the rich and poor has been narrowing since 1960 d) billions more people on the earth will intensify many environmental and social problems
Answers: 1
Magical
A student investigated the law of conservation of mass.
The law of conservation of ma...
The law of conservation of ma...
Chemistry, 10.10.2021 01:00
Mathematics, 10.10.2021 01:00
Spanish, 10.10.2021 01:00
Advanced Placement (AP), 10.10.2021 01:00
Mathematics, 10.10.2021 01:00
Biology, 10.10.2021 01:00
Social Studies, 10.10.2021 01:00