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Assignment - 8. Showing Precision in Measurements
Attempt 2 of 2
SESTDI
What is the mass measurement shown on the scales of this balance?
0
10
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90
0
1
2.
4.
5
6
7
8
9
.1
.2
.3
4
.5
.6
.7
.8
.9
g.
73.923
70.392
73.92
O 70.923

Identify which properties could correspond to solids, plasmas, or both. maintain a unique shape. collide infrequently with other particles. have very high velocities. conduct electricity. protons. have a low temperature. has long-range order.

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? a. the balloons both rise. the cold balloon is larger than the warm balloon. b. the balloons rise at the same rate. both balloons are the same size. c. the warm balloon expands and rises. the cold balloon shrinks and sinks. d. the cold balloon expands and rises. the warm balloon shrinks and sinks.

Areaction in which products can react to re-form reactants is