Answer:
Repeat the experiment several times to make sure the results are reliable.
Explanation:
The best way for Chris to validate his results is to repeat the experiment several times to make sure the results are reliable.
For a hypothesis to be accepted it must be testable.
- The more standard data points obtained from an experiment, the more the reliability index increases.
- Chris should not just conclude with one data point.
- In fact, most scientist prefers to use up to 30 data points before reliability can be assumed.
- So, Chris should repeat the experiment as much as possible to make sure the results are reliable.
Answer:
2K +F₂→ 2KF
Explanation:
When we balance an equation, we are trying to ensure that the number of atoms of each element is the same on both sides of the arrow.
On the left side of the arrow, there is 1 K atom and 2 F atoms. On the right, there is 1 K and 1 F atom.
Since the number of K atoms is currently balanced, balance the number of F atoms.
K +F₂→ 2KF
Now, that the number of F atoms is balanced on both sides, check if the number of K atoms are balanced.
<u>Left</u>
K atoms: 1
F atoms: 2
<u>Right</u>
K atoms: 2
F atoms: 2
The number of K atoms is not balanced.
2K +F₂→ 2KF
<u>Left</u>
K atoms: 2
F atoms: 2
<u>Right</u>
K atoms: 2
F atoms: 2
The equation is now balanced.
Answer:
Pitch, in the chemical-process industries, the black or dark brown residue obtained by distilling coal tar, wood tar, fats, fatty acids, or fatty oils.
Explanation:
hopes it helps you☺
Answer: A. Wladimir Koppen.
I hope that this helps you and good luck!!
~Sara
