Can someone please answer this question for me? i will mark brainliest and it would also be really appreciated! :)
which of the following is a sign a chemical reaction has occurred?
A- A blue liquid is mixed into a yellow liquid, and the mixture turns green.
B- A piece of metal is placed in Water and produces sparks and gas.
C- A liquid is heated on a hot plate, And bubbles form.
D- A solid powder is mixed into a liquid and disappears.
Answers: 2
Chemistry, 22.06.2019 06:30
The following reaction shows sodium carbonate reacting with calcium hydroxide. na2co3 + ca(oh)2 → naoh + caco3 how many grams of naoh are produced from 20.0 grams of na2co3? (molar mass of na = 22.989 g/mol, c = 12.01 g/mol, o = 15.999 g/mol, ca = 40.078 g/mol, h = 1.008 g/mol) 12.2 grams 15.1 grams 24.4 grams 30.2 grams
Answers: 2
Chemistry, 22.06.2019 14:50
Which of the following is most likely true about water in chemical solutions?
Answers: 1
Chemistry, 22.06.2019 17:00
The biosphere of the earth is made up of what compound? organic or inorganic?
Answers: 3
Chemistry, 22.06.2019 18:00
Which three statements represent the benefits of performing experiments using computer simulations?
Answers: 3
Can someone please answer this question for me? i will mark brainliest and it would also be really a...
English, 24.07.2019 09:30
Chemistry, 24.07.2019 09:30
Health, 24.07.2019 09:30
Geography, 24.07.2019 09:30
History, 24.07.2019 09:30
Biology, 24.07.2019 09:30
Computers and Technology, 24.07.2019 09:30
Chemistry, 24.07.2019 09:30
English, 24.07.2019 09:30
Biology, 24.07.2019 09:30
English, 24.07.2019 09:30
Mathematics, 24.07.2019 09:30
English, 24.07.2019 09:30
English, 24.07.2019 09:30