Which indicator shows whether a solution is acidic or basic, but not how strong it is?
a)
pH...
Chemistry, 17.07.2020 01:01 emilypzamora11
Which indicator shows whether a solution is acidic or basic, but not how strong it is?
a)
pH paper
which turns blue in acids and red in bases.
Ob) pH paper which turns red in acids and blue in bases.
c) Litmus paper which turns red in acids and blue in bases.
d) Litmus paper which turns blue in acids and red in bases.
Answers: 3
Chemistry, 22.06.2019 03:40
Astudent is given a sample of a blue copper sulfate hydrate. he weighs the sample in a dry covered porcelain crucible and got a mass of 23.875 g for the crucible, lid, and sample. the mass of the empty crucible and lid was found earlier to be 22.652 g. he then heats the crucible to expel the water of hydration, keeping the crucible at red heat for 10 minutes with the lid slightly ajar. on colling, he finds the mass of crucible, lid, and contents to be 23.403 g. the sample was changed in the process to very light clue anhydrous cuso4. if there are again 100.0 g of hydrate, how many grams of cuso4 are in it? how many moles of cuso4? (hint: molar mass of cuso4 = 159.6 g / mole. what per cent of the hydrate is cuso4? you may convert the mass of cuso4 to moles.)
Answers: 3
Chemistry, 22.06.2019 10:20
In a reaction equation, where are the products located? a.) above the arrow b.) to the right of the arrow c.) to the left of the arrow d.) below the arrow
Answers: 2
Chemistry, 22.06.2019 14:20
Which of the following are sources of revenue for media companies? a. direct sales to producers b.advertising and subscriptions c. online purchase d. capital investments
Answers: 1
Mathematics, 17.02.2021 07:50
Mathematics, 17.02.2021 07:50
Mathematics, 17.02.2021 07:50
Biology, 17.02.2021 07:50
History, 17.02.2021 07:50
Mathematics, 17.02.2021 07:50
English, 17.02.2021 07:50
English, 17.02.2021 07:50
History, 17.02.2021 07:50
History, 17.02.2021 07:50
Mathematics, 17.02.2021 07:50