Answer:
It is A) Calcium
Explanation:
Calcium has an electronic configuration of 2,8,8,2
Flubber would be considered an amorphous solid.<span />
Answer:
True
Explanation:
A metal , has 1 electron on the last level, so it can become (A^+1)
C, non-metal, has 7 electrons on the last level, so it can become (C^-1)
Compound AC is possible
Answer:
d. carboxyl
Explanation:
The presence of carbonyl group (>C=O)) and a hydroxyl group ( (−OH) on the same carbon atom is called a "carboxyl" group. A carboxyl group is represented as COOH and acts as the functional group part of carboxylic acids.
For example:
- Formic acid or Methanoic acid (H-COOH)
- Butanoic acid (C3H7-COOH)
Hence, the correct option is "d. carboxyl ".
Answer:
True True False
Explanation:
Valves are in most veins (to prevent backflow). Also valves in the chart and an in an combustion engine.
So the first statement is True.
Valves control the flow rate and direction of fluid within a closed system. So the second statement is True.
1 Pa = 1 N/m² So since 1 Pa equals to one newton per square metre the third statement is False.
