Chemistry, 05.02.2021 01:30 elliehemms6324
WHOEVER ANSWERS GETS BRAINLIEST!! (im not lying its facts)
A student placed four drops of water on a fresh slice of bread. Next the wet bread was placed inside a plastic bag and sealed up tight. After that, the student placed the sealed bag of wet bread on a balance. The mass is recorded as 20 grams. After 10 days, the student observed many types of mold growing on the bread and inside the sealed bag. The pictures show the student’s experiment.
Set up: A bread plus four drops of water plus a plastic bag equals to 20 grams.
Result: Bread in side the plastic bag equals to: grams.
Predict the mass of the sealed bag of moldy bread.
A. 15 grams
B. 20 grams
C. 22 grams
D. 25 grams
Answers: 1
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, 23.06.2019 00:00
If many scientists conduct the same or similar experiments, and all obtain similar results, a can be written, which is a generally agreed-upon statement that explains and predicts how a natural phenomenon works.
Answers: 1
Chemistry, 23.06.2019 00:30
The molecular weight of carbon dioxide, co2, is 44.00 amu, and the molecular weight of nitrous dioxide, no2, is 46.01 amu, so no2 diffuses co2
Answers: 2
WHOEVER ANSWERS GETS BRAINLIEST!! (im not lying its facts)
A student placed four drops of water on...
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