In a water molecule...

Hydrogen atoms are partially positive.

Surface tension helps living organisms, especially humans and other mammals....

Maintain a stable body temperature.

When water molecules stick to other molecules that aren't water.

Maintain a stable internal environment.

When water molecules stick to other water molecules.

Is based on a common genetic code.

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Chemistry and Biology basics

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Questions 30

Answers

1
A positively charged subatomic particle.
Electron
Valence
Proton
Neutron
2
In a water molecule...
Hydrogen atoms are partially negative.
Oxygen atoms are anions.
Oxygen atoms are cations.
Hydrogen atoms are partially positive.
3
Matter is...
Ideas, objects and feelings
Anything that can't be broken down to a simpler form.
Anything that takes up space
Anything
4
A neutrally charged subatomic particle.
Valence
Neutron
Proton
Electron
5
Surface tension helps living organisms, especially humans and other mammals....
Maintain a stable body temperature.
Maintain polarity.
Cool off quickly.
Have capillary action.
6
This is an example of...
Adhesion
Cohesion
Electronegativity
Capillary action
7
In a water molecule the shared electrons are pulled closer to the hydrogen.
False
True
8
The outermost level of electrons
Electronegative
Valence
Polar covalent
Non polar covalent
9
The smallest unit of matter.
Particle
Compound
Molecule
Atom
10
Where are the least electronegative atoms located?
Top left.
Bottom right.
Bottom left.
Top right.
11
Elements are...
Types of polar molecules
Types of atoms
Types of cations
Types of anions
12
Which of the following is not a true chemical bond?
Ionic
Metallic
Hydrogen
Covalent
13
Adhesion is
When water molecules stick to other molecules that aren't water.
When water molecules become polar.
When water molecules make capillary action happen.
When water molecules stick to other water molecules.
14
Density =
Mass/Matter
Mass/Volume
Mass/Area
Mass/Weight
15
Computers...
Are made of cells.
Reproduce.
Maintain a stable internal environment.
Are based on a common genetic code.
16
Which of the following is not one of the 4 main types of matter?
Gas
Plasma
Ice
Liquid
17
What types of bonds form between water molecules?
Metallic
Covalent
Ionic
Hydrogen
18
A positively charged subatomic particle.
Electron
Valence
Neutron
Proton
19
Water is a polar molecule because it contains non-polar covalent bonds.
False
True
20
Cohesion is...
When water molecules stick to other water molecules.
When water molecules stick to other molecules that aren't water.
When water molecules make capillary action happen.
When water molecules become polar.
21
Where are the most electronegative atoms located?
Bottom Left
Top Right
Top Left
Bottom Right
22
Heat causes molecules to spread out.
False
True
23
A negatively charged subatomic particle
Neutron
Electron
Valence
Proton
24
Cohesion leads to...
Polarity.
Surface tension.
Capillary action.
Electronegativity.
25
Which type of chemical bond involves one atom losing an electron and the other atom gaining an electron?
Ionic
Non-polar Covalent
Polar Covalent
Hydrogen
26
Which of the following isn't one of the qualifiers for something to be considered living?
Reproduces.
Based on a common genetic code.
Made of molecules.
Obtains and uses energy.
27
A virus...
Maintains a stable internal environment.
Is based on a common genetic code.
Is made of cells.
Reproduces.
28
Cars...
Reproduce.
Obtain and use energy.
Are made of cells.
Are based on a common genetic code.
29
Opposite charges attract.
True
False
30
What is pictured below?
Adhesion.
Specific heat capacity.
Cohesion.
Surface tension.

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