A. how the Moon's appearance changes
Explanation:
Descriptive investigation use very careful observations and measurements to develop findings.
Most geologists, meteorologists and astronomers use descriptive investigation to develop their findings.
- Since most of their subject matter is inaccessible.
- Descriptive investigation is used for indirectly making inquiries
- It involves the development of an inquiry without formulating any hypothesis.
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Answer:
4.
A. Proton= Positive charge
B. Neutron= Neutral or no charge
C. Electron= Negative charge
5.
Protons and Neutrons are found in the nucleus.
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Answer:
b) F
Explanation:
Only non-metals can gain electrons during ionic bonding.
b) F
Li, Mg and K are metals.
137 g NO) / (30.0061 g NO/mol)x (43kcal / 2 mil NO) = 98kcal
