1. What is the term for a process causing the particles contained in a substance to be packed more closely together?
A. coefficient of expansion
B. contraction
C. expansion
D. packing
E. squeezing

2. A one liter sample of gas is heated under constant pressure from
100°C to 200°C. Its volume increases to 1.27 liters. On further
heating to 300°C, what would the volume of the sample be?
A. 1.00 liter
B. 1.27 liters
C. 1.54 liters
D. 1.81 liters

3. A 5-liter sample of gas initially at 50°C is observed to expand to
5.5 liters when the temperature is raised to 100°C. After further
increase in temperature, the volume is 6 liters. What is the
approximate temperature (within 50 degrees) of the final state of
the gas?
A. 50°C
B. 100°C
C. 150°C
D. 200°C
Please help

1) contraction

2) 1.54 liters

3) 150°C

4) The gas expands proportionally to the increase in temperature

5) false

6) true

7)pentane

8) it has a boiling point around 35°

Explanation:

you need to take a look at the periodic system in order to sort these elements into pairs that would most likely exhibit similar chemical properties. first, you need to find elements that are found in the same group (groups are vertical in the periodic system), and then to see whether they have the same valence number. if they meet these criteria, they will have similar properties.

the first pair: ne (neon) and kr (krypton), are noble gases found in group 8

the second pair: li (lithium) and k (potassium), found in group 1

the third pair: s (sulfur) and te (tellurium), found in group 6

give me abc and i will get it for u.