Chemistry

Milk of magnesia has a pH of 10.5. Therefore, it is a(n) _____________.   

A row of elements on the periodic table is called a ______________.  

Law of conservation of mass: the mass of the products must be ____ the mass of the reactants.

Milk of magnesia has a pH of 10.5. Therefore, it is a(n) _____________.   

What type of bond holds together the atoms in a molecule of caffeine, C₈H₁₀N₄O₂?

Twice each year, the Sun is located directly over the equator. These days are called _______.

Which formula below represents a molecule? 

If an atom loses an electron, it has a ______________ charge.   

Choose the compound below that is most likely a base.   

How many valence electrons in the atom below?

Between which positions would the United States be experiencing winter?

Which of these does not reduce global warming?  

Which of these is NOT a greenhouse gas?

Which particle is NOT found in the nucleus of an atom? 

Look at the element key for tin.  How many neutrons in a tin atom? 

Which of the following is an example of the third law of motion? 

What is special about elements that are in the same group of the periodic table? 

If an atom gains an electron, it has a ______________ charge.   

What type of bond would form between lithium and bromine?  

What element is shown in the atomic model below?    

Which of the following is true about bases? 

Which object is moving at the fastest speed?

Which of the following is an example of the first law of motion? 

Vinegar has  pH of 2.4.  Vinegar is a(n) ______________.

Between which positions would the United States be experiencing summer?

Which of the following is true about acids?

Using the periodic table, what is the atomic number of barium?

Theobromine,a chemical in chocolate, has the formula C₇H₈N₄O_2.What elements and how many atoms?

What type of bond holds together a carbon dioxide molecule?  

Which chemical equation below is correctly balanced?