Question 1 unsaved
each of the following are descriptions of physical properties except
...
Biology, 26.12.2019 05:31 genesis0523
Question 1 unsaved
each of the following are descriptions of physical properties except
question 1 options:
c. flammability
d. density
a. color
b. mass
question 2 (10 points) question 2 unsaved
in the phase of matter, atoms or molecules are held in a rigid structure. they are free to vibrate but cannot move around.
question 2 options:
a. gas
b. solid
c. plasma
d. liquid
question 3 (10 points) question 3 unsaved
all of the following are evidence that a chemical reaction has occurred except
question 3 options:
a. color change
b. formation of a precipitate
c. bubbles of gas
d. all of the above are evidence of a chemical reaction
question 4 (10 points) question 4 unsaved
an example of a homogeneous mixtures are vegetable soup and chocolate chip cookies.
question 4 options:
true
false
question 5 (10 points) question 5 unsaved
which of the following is an example of a pure substance?
question 5 options:
a. air
b. salt water
c. granite
d. aluminum
question 6 (10 points) question 6 unsaved
the proper iupac naming convention for the compound symbol 'ki' is
question 6 options:
a. potassium iodide
b. barium sulfide
c. potassium iodate
d. barium iodine
question 7 (10 points) question 7 unsaved
the 'law of conservation of matter' states that the mass of the products will always be more than the mass of the reactants within a chemical reaction.
question 7 options:
true
false
question 8 (10 points) question 8 unsaved
the following reaction is an example of
na + kcl → k + nacl
question 8 options:
a. single replacement
b. double replacement
c. decomposition
d. combination
question 9 (10 points) question 9 unsaved
michelle wants to quickly dissolve powdered drink mix into a pitcher of water. which is not a way she could increase the rate of dissolution?
question 9 options:
a. heating the mixture
b. stirring the mixture
c. breaking up the solute into smaller pieces
d. adding more powdered drink mix
question 10 (10 points) question 10 unsaved
a student determines that a piece of an unknown material has a mass of 5.854 g and a volume of 7.57 cm3. what is the density of the material?
question 10 options:
a. 1.30 g/cm3
b. 0.39 g/cm3
c. 1.55 g/cm3
d. 0.77 g/cm3
Answers: 2
Biology, 22.06.2019 12:30
This is the interaction of two organisms where one is and the other is neither nor harmed.
Answers: 1
Biology, 22.06.2019 14:50
The ultimate purpose of respiration: a. inhale 02 and exhale co2 b. place oxygen in the lungs c. place oxygen in the blood d. deliver oxygen to every blood cell
Answers: 3
Biology, 22.06.2019 16:40
Which of these definitions have been paired with the correct type of cell?
Answers: 1
English, 17.11.2020 20:30
Mathematics, 17.11.2020 20:30
Mathematics, 17.11.2020 20:30
Mathematics, 17.11.2020 20:30
Mathematics, 17.11.2020 20:30
English, 17.11.2020 20:30
Mathematics, 17.11.2020 20:30
Mathematics, 17.11.2020 20:30
Mathematics, 17.11.2020 20:30
English, 17.11.2020 20:30