Geiss IPC Final Chemistry Portion

Front

What part of the Periodic Table can be used to determine the number of protons present in an element?

Back

Atomic Number

Front

What pair of elements is most likely to form a covalent bond? Beryllium and flourine, Carbon and sulfur, Strontium and iodine, Potassium and selenium

Back

Carbon and sulfur

Front

Which statement best describes the structure of water and its nature as a solvent? Options: The water molecule is polar and will dissolve polar molecules, such as sugar. The water molecule is polar and will not dissolve ionic compounds, such as salt. The water molecule is nonpolar and will dissolve polar molecules, such as vinegar. The water molecule is nonpolar and will dissolve nonpolar molecules, such as oil.

Back

The water molecule is polar and will dissolve polar molecules, such as sugar.

Front

Compared to the particles in a gas, the particles in a solid move —

Back

slower than the gas

Front

Which of the following best explains why the noble gases are less likely to chemically bond with other elements?
Options:
They are all non-metals.
They are all rare elements.
They all have a full outer shell of electrons.
They have the highest atomic number in the row.

Back

They all have a full outer shell of electrons.

Front

Groups on the Periodic Table contain elements with similar chemical properties and reactivity because -

Back

they have the same number of valence electrons

Front

What part of the Periodic Table can be used to determine the number of valence electrons most likely present in an element?

Back

Group

Front

Condensation occurs when —

Back

a gas loses energy to become a liquid

Front

Which of the following is an example of an endothermic reaction? Heating pack, Glow stick, Fire, Cold pack

Back

Cold pack

Front

Most substances are more dense in their solid form than in their liquid or gaseous form. What makes the solid phase more dense?

Back

The solid form has less energy, so the molecules are packed more tightly.