The correct answer is option 2. A matter that is composed of two or more elements that are combined chemically in a fixed proportion is a compound. A compound is a molecule made from different elements held together by a chemical bond.<span>
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Answer:
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Explanation:
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That's the question right
The property that the scientist was most likely investigating was the solubility of the crystals.
False because tear gas is used in riots
Answer:
Jose is right
Explanation:
As the book is sitting still on the table, it is being acted upon by two forces of equal magnitude and opposite direction. Theses are;
i) The weight of the book
ii) The normal reaction on the book
The weight of the book acts downwards while the normal reaction acts upwards. These two forces exactly counterbalance each other hence the book sits still on the table.