Answer:
D) The gravity on the moon is one sixth the gravity of Earth.
Explanation:
Given :
A balanced chemical equation :

To Find :
How many grams of zinc are needed to produce 12 grams of zinc chloride.
Solution :
Moles of
,

Now, by balanced chemical equation we can say that 1 mol of Zn produce
1 mol of
.
So, 0.088 mol of Zn is required to produced 0.088 mol of
.

Therefore, 5.8 grams of zinc is required.
Hence, this is the required solution.
The correct answer as to which observation most likely indicates that only a chemical change has taken place would that the change cannot be reversed.
When it comes to changes in a system, it can either be:
- physical change
- chemical change
When a substance undergoes a physical change, the original version of the substance can be recovered. In other words, physical changes can be reversible.
When a substance undergoes a chemical change, the original version cannot be recovered because an entirely new product would have been formed. In other words, chemical changes are irreversible.
Thus, once a change becomes irreversible, such a change is said to be a chemical change.
More on chemical change can be found here: brainly.com/question/1161517
Answer:
its answer A....that's the answer is

Explanation:
The visible light spectrum is the section of the electromagnetic radiation spectrum that is visible to the human eye. Essentially, that equates to the colors the human eye can see. It ranges in wavelength from approximately 400 nanometers (4 x 10 -7 m, which is violet) to 700 nm (7 x 10-7 m, which is red).
Answer:
Lakes
Explanation:
Because oceans aren't fresh water