Answer:
The number of atoms or ions in a compound are shown as subscripts in the chemical formula.
If a compound's ions have a different value, then the chemical formula should have subscripts.
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Explanation:
Answer: Here are the answers
Explanation:
7a) Calcium Chloride +water+carbon dioxide
b)Calcium Oxide +Carbon dioxide
8a) zinc + carbon monoxide
b) Aluminum + Carbon dioxide
c) Lead + carbon dioxide
Answer:
C. Lymphocytes
Explanation:
All of the following choices are kinds of white blood cells that have a significant role in the body's immune system.
A. Monocytes
Monocytes defend the body against infection by acting as macrophages. They are capable of eating up foreign bodies that may cause infection.
B. Neutrophils
Neutrophils are the most in number in the body's immune system, especially when there is inflammation. They are distributed to different areas where they can move through circulation along blood vessels. They specifically attack antigens.
C. Lymphocytes
Lymphocytes are further divided into two. These are the B cells and the T cells. The B cells are also of two kinds. One of them is the memory B cells, which can remember a foreign body and create antibodies against it to provide for a long-term resistance in case the body gets exposed to the same infectious agent again.
D. Basophils
As part of the immune system, basophils function for preventing blood clots as well as in mediating allergic reactions.
How it looks. basically the thing that tells you how it change. for example if an ice cube was melted (heat), it only changed physically not chemically as the h20 molecules are still there. however lets say you burn woos— you cant get that would back. its ash now and it has changed chemically.
We can exemplify with H2O (water)
H= nonmetalic
O= Nonmetalic
A bond with nonmetalic and nonmetalic is covalent bond.
Hope it helps!!
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