Answer:
the answer to number 9 is A.
Explanation:
Answer:
carbon dioxide is fixed or incorporated into organic molecules.
Explanation:
Carbon dioxide fixation is the conversion of inorganic carbon into organic carbon.
In photosynthesis CO2 is converted into glucose i.e inorganic carbon (CO2) is converted into organic molecule (glucose).
Answer:
<u><em>METALS</em></u>
Lose their valence electrons easily/ ionic by electron loss.
<u><em>NOMETAL</em></u>
Gain or share valence electrons easily/ ionic by electron grain.
Answer:

Explanation:
Hello,
In this case, for the computation of the energy loss when the cooling process is carried out, we use the shown below equation:

Whereas we need the mass, specific heat and change in temperature of iron within the process. Thus, the only value we need is the specific heat that is 0.444 J/(g°C), therefore, we compute the heat loss:

Negative sign points out the loss due to the cooling.
Regards.
The observation that most likely indicates that only a chemical change has taken place is that the change cannot be reversed.
There are two types of change which matter undergoes;
- Physical change
- Chemical change
A chemical change leads to the formation of a new substance so it is usually irreversible.
On the other hand, a physical change is easily reversible. It often involves a change in shape, form or appearance of matter.
If a change is cannot be reversed, it is most likely a chemical change.
Learn more: brainly.com/question/6284546