Abeka 9th Science Quiz 28 L140

What is the term for a diagram that shows the locations of all the atoms and valence electrons between atoms?

• Lewis structure
• Chemical equation
• Structural formula
• Molecular formula

What substances are composed of two or more elements bonded together?

• Elements
• Mixtures
• Compounds
• Alloys

What type of chemical bond results from the sharing of valence electrons between atoms?

• Hydrogen bond
• Covalent bond
• Metallic bond
• Ionic bond

Tags

NGSS.HS-PS1-1

What term describes how strongly the atoms of an element pull on electrons in chemical bonds?

• Ionization Energy
• Atomic Radius
• Electron Affinity
• Electronegativity

Ionic bonds typically form between a ____ and a nonmetal.

• metal
• noble gas
• transition metal
• alkaline earth metal

The substance in which solutes are dissolved is called a ________.

• solution
• solvent
• solute
• suspension

If one of the atoms of a bond has a greater electronegatively than the other atom, a ______ bond forms.

• polar
• metallic
• covalent
• ionic

Any substance that has the same physical properties throughout is a ________ substance.

• compound
• homogeneous

• mixture
• solution

Atoms that gain electrons become ________.

• anions
• protons
• neutrons
• cations

Calculate the molecular mass of H2SO4, using the following values for atomic masses:

H: 1u, S: 32u, O: 16u

• 82u
• 100u
• 98u
• 96u