Answer:
to protect peoples teeth against cavities
Explanation:
i just know
Answer: Hydrogen belongs to group 1 metal elements in the periodic table.
Explanation:
The hydrogen is a highly active metal. It has a single electron in its valence shell and it can donate its electron to other metal atoms. Thus forming metal hydrides. The hydrogen when ignited it reacts with oxygen and burns explosively this is indicative of high reactivity and spontaneous reactivity of hydrogen atom.
2Li + Br2 → 2LiBr
Lithium react with bromine to produce lithium bromide. The reaction proceeds at room temperature.
:)
Answer:
Mass is the measure of how much matter is in an object
Explanation:
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Answer:
A. an observation
Explanation:
Because by saying that the leaf is green that is an observation on the leaf to tell what color it is.
Have a nice day/night :)
