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Chemistry Lab Quiz
Chemistry Lab Quiz
1. The enzyme lactase breaks the disaccharide lactose into monosaccharides. Which of the following is not a monosaccharide?
glucose
galactose
starch
fructose
All of the above are monosaccharides.
2. The Cl- ion has a single negative charge and the atomic number of 17. How many electrons are on its innermost shell?
18
17
9
8
2
3. When electrons are shared equally between two atoms you have formed what type of bond?
covalent bond
polar covalent bond
ionic bond
hydrogen bond
metallic bond
4. Neutrons carry a positive charge that is why the core of an atom is positively charged.
True
False
5 Acids are found on the pH scale above the number 7.
True
False