5 grams of sodium bicarbonate, a white powdery solid, is placed in an empty red balloon 100 grams of acetic acid, a clear aqueous solution, is placed in the plastic bottle. The balloon is carefully
attached to the bottle so that no air can get in or out and the powder does not fall into the bottle. Once attached, the apparatus is placed on a balance and the contents are mixed. Bubbles form, the
balloon inflates, and the white powder is no longer visible. Which of the these statements would match your observations?
A) A chemical reaction has occurred and the mass will increase.
B) A chemical reaction has occurred and the mass will decrease.
A physical reaction has occurred and the mass will decrease.
D) A chemical reaction has occurred and the mass will remain the same.
Answers: 3
Biology, 21.06.2019 22:30
~fourth largest plate ~includes parts of the indian and atlantic oceans ~subducts below the eurasian plate on the west side ~ the arabian and somali plates form boundaries with it what is the name of the tectonic plate described above? a) african plate b) eurasian plate c) north american plate d) indo- australian plate
Answers: 1
Biology, 22.06.2019 01:00
Complete the statements to identify the first two steps of meiosis i. (1 ) the first and longest step of meiosis i is called i. (2)the second step of meiosis i is called i.
Answers: 1
Biology, 22.06.2019 01:30
As a result of wildfires, in grasslands. a) tree growth increases b) grass growth increases c) soil quality decreases d) invertebrate variety decreases
Answers: 2
5 grams of sodium bicarbonate, a white powdery solid, is placed in an empty red balloon 100 grams of...
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