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S3W5 Homework - ionic and covalent bonds
By Gwyneth Lenfest
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Last updated 5 months ago
18 questions
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Question 1
1.
Watch this video about molecular bonds. do you have any questions?
Question 2
2.
During an ionic bond _____________ are gained and lost.
Protons
Electrons
Neutrinos
Valence Electrons
Question 3
3.
Made up of 2 or more different elements.
Compound
Molecule
Chemical
Mixture
Question 4
4.
A group of atoms held together by covalent bonding that acts as an independent unit.
Chemical
Compound
Molecule
Mixture
Question 5
5.
A chemical bond formed when two atoms share one or more pairs of valence electrons.
Ionic bond
Common bond
Covalent bond
Isotope bond
Question 6
6.
How many atoms make up this compound?
24
12
6
6
Question 7
7.
A molecule that has a partial positive end and a partial negative end because of unequal sharing of electrons.
Polar
Compound
Nonpolar
Chemical equation
Question 8
8.
A group of chemical symbols and numbers that represent the elements and the number of atoms of each element that make up a compound
Dot diagram
Chemical formula
Chemical equation
Structural formula
Question 9
9.
How many atoms of oxygen are there in H₂O₂
1
3
4
2
Question 10
10.
Watch the following video about the polarity of water
Question 11
11.
When a molecule is polar , which is true?
the molecule is water
the molecule is hydrogen bonded
the molecule is held together by shared electrons, but the electrons aren't dispersed equally around the molecule. Part of the molecule is positive, and another part is negative.
the molecule is a compound.
Question 12
12.
technically only covalent bonds can be considered polar, but ionic bonds act like polar molecules because
their bond isn't very strong
electrons are taken, not shared, so one part of the atom is positive and the other is negative.
ionic bonds are covalent.
they share electrons so their molecules are evenly distributed
Question 13
13.
We learned last week that when you dissolve salt, the water pulls the salt molecules apart. this is because ionic bonds are between
two positive atoms
two neutral atoms that share electrons
positively and negatively charged atoms
two negative atoms
Question 14
14.
what happens when you try to mix oil and water?
Question 15
15.
what happens when you mix oil and water and then put some soap in the mixture?
Question 16
16.
watch this video on polar nonpolar and amphiphilic.
Question 17
17.
Ok, 8th and honors, keep going, every one else can leave. summarize the video in just a couple sentences
Question 18
18.
Answer the question he asks at the end - why are we using detergents (the amphiphilic stuff) to clean things?