PLEASE HELP!!!! ALMOST DUE
Oxygen (O₂) is a mixture. *
True
False
Air is a molecule. *
True
False
An element is made out of only one kind of atom. *
True
False
The atoms in a pure element are not bonded together. *
True
False
The atoms in a molecule are not bonded together. *
True
False
When looking at drawings of a molecule, the “spheres” often represent molecules, & lines or sticks represent the bonds connecting them. *
True
False
A molecule could be made of the same atoms or different atoms that are bonded together. *
True
False
Ozone (O₃) is made of three oxygen atoms and is a compound. *
True
False
Water, salt and carbon dioxide are all molecules. *
True
False
Water, salt, and carbon dioxide are all compounds. *
True
False
NaCl is made out of four different kinds of atoms. *
True
False
H₂O₂ is made up of 2 hydrogen atoms and 2 oxygen atoms. *
True
False
Ammonia (NH₃) is a compound. *
True
False
Bonds are formed when the electrons in the outer shell are shared or transferred. *
True
False
Atoms are the building blocks of elements, molecules, compounds, and mixtures. *
True
False
Sodium Chloride, or table salt, is a compound. *
True
False
Air is a mixture of many different gas molecules. *
True
False
Pizza is a heterogeneous mixture. *
True
False
Salt water is a heterogeneous mixture. *
True
False
Another word for air is oxygen. *
True
False
Often when you look at the drawing of a compound, you will notice that there are different colored “spheres” bonded together. *
True
False
Tap water has many things dissolved in water. This means that tap water is a homogeneous mixture. *
True
False
Pure water (H₂O) is a compound and a molecule. *
True
False