Biology 2

1.

1 point

A compound that releases hydrogen ions into a solution

Element

Base

Acid

Electron

2.

1 point

A compound that absorbs hydrogen ions into a solution

Electron

Element

Base

Acid

3.

1 point

A negatively charged subatomic particle that orbits the nucleus

Element

Base

Electron

Acid

4.

1 point

A substance that cannot be broken into simpler substance by oridinary chemical means

Electron

Element

Acid

Base

5.

1 point

The smallest unit of an element that is still that element

Ion

Matter

Atom

Isotope

6.

1 point

Changing the number of electrons in an atom gives you a charged atom. Also known as what?

Atom

Isotope

Ion

Matter

7.

1 point

What do you get when you change the number of nuetrons in an atom

Ion

Matter

Atom

Isotope

8.

1 point

Anything that occupies space

Atom

Isotope

Ion

Matter

9.

1 point

The smallest unit of a compound that is still that compound

Valence Electrons

Proton

Molecule

Nuetron

10.

1 point

Nuetral charged particle

Proton

Nuetron

Valence Electrons

Molecule

11.

1 point

Positively charged particle

Nuetron

Proton

Valence Electrons

Molecule

12.

1 point

Outer shell electrons

Valence Electrons

Proton

Nuetron

Molecule

13.

1 point

Sometimes forms between moloecules that have a partial positive and a partial negative charge becuase of unequal sharing of electrons

Hydrogen Bond

Nonpolar Covalent Bond

Polar Covalent Bond

Ionic Bonding

14.

1 point

Forms when an electron or electrons are transferred

Hydrogen Bond

Nonpolar Covalent Bond

Ionic Bonding

Polar Covalent Bond

15.

1 point

Forms when electrons are shared equally

Hydrogen Bond

Nonpolar Covalent Bond

Ionic Bonding

Polar Covalent Bond

16.

1 point

Forms when electrons are shared unequally

Nonpolar Covalent Bond

Hydrogen Bond

Ionic Bonding

Polar Covalent Bond

17.

1 point

A pH of 0 is extremely acidic

True

False

18.

1 point

The study of matter and its properties, characteristics and behaviors

Ecology

Biology

Chemistry

Physics

19.

1 point

Which of the following is false regarding electronegativity?

Flourine has avery high electronegativity

Electronegativity is a measurement for how much an atom wants an electron

Elements in group 18 have a very high electronegativity

Francium has a very low electronegativity

20.

1 point

Which of the following is false

Electronegativity difference between atoms in a molecule determines the type of bond that forms

Little or no difference between atoms results in a nonpolar covalent bond

Large difference in electronegativity between atoms results in a hydrogen bond

Medium difference between atoms result in a polar covalent bond

21.

1 point

Which of the following is false regarding the formation of salt

Sodium and Chlorine are attracted to each other and they form salt which is an ionic compound

Chlorine has a much higher electronegativity than Sodium

Sodium gives an electron to chlorine

Sodium and Chlorine both becomes ions

22.

1 point

Which of the following is false regarding the formation of water

Oxygen has a partial negative and the hydrogens have a partial positive

The hydrogens each share an electron with the oxygen atom

The bonds between the hydrogen and the oxygen are called non-polar covalent bonds

Oxygen needs 2 more electrons to fill its outer shell

The hydrogen each need one more electron to fill their outer shell

23.

1 point

What type of bond links one water molecule to another water molecule?

Nonpolar Covalent

Hydrogen

Ionic

Polar Covalent

24.

1 point

Water molecules stick to other things

High Heat of Vaporization

Cohesion

Adhesion

High Specific Heat

25.

1 point

Water molecules stick to eachother

High Specific Heat

Cohesion

Adhesion

High Heat of Vaporization

26.

1 point

Water evaporates and cools living things

High Heat of Vaporization

Adhesion

High Specific Heat

Cohesion

27.

1 point

Water can absorb a lot of heat without the tempature of the water changing very much

Cohesion

Adhesion

High Specific Heat

High Heat of Vaporization

28.

1 point

The amount of force necessary to break the surface of the liquid

Water is less dense as a solid than a liquid

Surface Tension

Water is the Univeral solvent

29.

1 point

Water freezes on the top of bodies of water and insulates the water underneath

Surface Tension

Water is the Univeral solvent

Water is less dense as a solid than a liquid

30.

1 point

A lot of compounds can be dissolved in water

Surface Tension

Water is the Univeral solvent

Water is less dense as a solid than a liquid

31.

1 point

Which two characteristics of water are important for getting water from the roots of plants to the tops of plants

Adhesion

High Heat of Vaporization

Cohesion

High Specific Heat