Chemistry, 18.04.2021 05:30, LizzieS8167
Suppose that a flask has some vinegar in it and a balloon has some baking soda in it. Next, the balloon is fit over the flask and the baking soda is dumped in. There is fizzing and the balloon fills as gas is produced. The balloon keeps any gas from escaping. If the initial mass of all parts combined is found to be 100g, what should the mass be of all parts after the reaction is complete?
a
101
b
98
c
100
d
99
Answers: 2
Chemistry, 21.06.2019 19:00, lizbeth232001
Which of the following best explains why the end of a spoon sticking out of a cup of hot water also gets hot? question 7 options: the heat from the hot water is conducted through the spoon handle the hot water heats the air surrounding the upper part of the spoon. the hot water causes a physical change in the spoon handle. the hot water causes a chemical reaction to take place in the spoon.
Answers: 2
Chemistry, 22.06.2019 10:00, 2019reynolds
Which sentence about particles in matter is true? a. atoms are present in solids and liquids but not in gases. b. the particles of matter are in constant motion. c. the same kinds of atoms are found in different elements. d. when a solid changes to a liquid, the sizes of the particles change.
Answers: 1
Chemistry, 22.06.2019 12:00, daytonalive83481
Ican determine the molar mass of an element by looking on the under the atomic mass for the element. for example the molar mass of phosphorus is 30.974 grams/mole. avogadro’s number tells me the amount of representative particles in 1 mole of any substance. this means 12.011 gram sample of carbon and a 32.0 gram sample of sulfur have the same number of atoms.
Answers: 1
Suppose that a flask has some vinegar in it and a balloon has some baking soda in it. Next, the ball...
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