Chemistry, 21.11.2020 05:30 johnthecool282
Students in a laboratory are asked whether a given sample of liquid matter is a pure substance or a mixture.
They brainstorm the following suggestions for a test to answer the question.
Test Description
1.Add NaOH(aq) to see if a precipitate forms
2.Evaporate it to see if a residue will form
3.Examine it under a microscope to see if it is uniform throughout
4.Run the liquid through a filter paper
Which of the above tests could yield useful information to the answer? (4D)
a. 2 only
b. 2, 3, and 4
c. 1, 2, and 4
d. All the tests will be useful
Answers: 1
Chemistry, 22.06.2019 00:30
Asolution of sodium hydroxide was titrated against a solution of sulfuric acid. how many moles of sodium hydroxide would react with 1 mole of sulfuric acid?
Answers: 2
Chemistry, 22.06.2019 11:00
3) in peaches, [oh]=3.16x10-11 m a) find [h+ ] b) what is the ph? c) is the solution acidic, basic, or neutral?
Answers: 1
Chemistry, 22.06.2019 11:00
Surface currents are caused by blank space . question 14 options: surface currents are caused by? differences in water temperature high salinity differences in density wind forces
Answers: 1
Chemistry, 22.06.2019 19:10
How does the atmosphere to make earth livable? check all that apply. causes the seasons contains oxygen provides warmth creates important nutrients blocks harmful energy from the sun plz like !
Answers: 2
Students in a laboratory are asked whether a given sample of liquid matter is a pure substance or a...
Mathematics, 22.04.2021 21:50
Physics, 22.04.2021 21:50
Mathematics, 22.04.2021 21:50
Mathematics, 22.04.2021 21:50
Mathematics, 22.04.2021 21:50
Mathematics, 22.04.2021 21:50
English, 22.04.2021 21:50
History, 22.04.2021 21:50
Mathematics, 22.04.2021 21:50
Chemistry, 22.04.2021 21:50