Chemistry, 24.02.2021 18:20, Yungnaudie
Video Follow-Up Questions
Matching: Match the terms in column A with the definitions in column B.
Column A
1. molecule
2. nucleus
3. atomic number
4. mass number
5. isotopes
6. electron
7. neutron
8. proton F
9. atom
10. element
Column B
A. Substance made of only one kind of atom.
B. The total of protons and neutrons in an atom,
C. The center of an atom.
D. A group of atoms bound to each other,
E. The total of protons in a nucleus, y
F. Particle with a positive charge.
G. Particle with no charge,
H. Particle with a negative charge.
1. Atoms with the same number of protons but different numbers of neutrons.
J. Smallest particle of an element.
Answers: 1
Chemistry, 21.06.2019 22:00, braydentillery1221
If the particles in a sample of matter have an orderly arrangement and move only in place, the sample is a
Answers: 1
Chemistry, 22.06.2019 08:30, microwave13016
Agroup of students is studying convection current. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other is in an area with warm air. after 10 minutes, the balloon are released from a height of 1 meter. which of the following to the students most likely observe? a) the warm balloon expands and rises. the cold balloon shrinks and sinks b) the balloon both rise. the cold balloon is larger than the warm balloon c) the cold balloon expands and rises. the warm balloon shrinks and sinks d) the balloon rise at the same rate. both balloons are the same size
Answers: 1
Chemistry, 22.06.2019 12:10, purplefish53
Consider the reaction: n2(g) + o2(g) β 2no(g) kc = 0.10 at 2000oc starting with initial concentrations of 0.040 mol/l of n2 and 0.040 mol/l of o2, calculate the equilibrium concentration of no in mol/l how would this be done?
Answers: 3
Video Follow-Up Questions
Matching: Match the terms in column A with the definitions in column B.
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