True or False. When deciding what material to use to make a drink container, it is useful to think about what raw material is needed to make the container.
True.
100
True or False. When deciding what material to use to make a drink container it is useful to think about how the drink container will be made.
True
100
True or False. Silica, soda ash, and limestone are the raw materials for plastic.
False. They are the raw materials for glass.
100
True or False. When deciding what material to use to make a drink container it is useful to think about what will happen to it when it is no longer being used.
True
100
True or False. Bauxite is a mineral used to manufacture plastic.
False. Bauxite is a mineral used to manufacture aluminum.
200
The __________________ of a product are the stages from when the product is made until it is disposed of.
life cycle
200
A __________________is a type of property that can be identified without seeing if the material reacts with another substance.
physical property
200
Color, texture, and hardness are all examples of _________________________ properties.
physical
200
pH is an example of a _____________________ property.
chemical
200
A ____________________ describes how a material reacts with another substance.
chemical property
300
A(n) ________________________ is a substance that cannot be broken down into simpler substances.
element
300
The group of elements called _____________________ are extremely reactive with water.
alkali metals
300
Pure forms of elements contain _______________ of the same type.
atoms
300
Many elements are ___________________. In other words, they readily combine with other elements to create compounds.
reactive
300
Atomic number corresponds to the quantity of ____________________ in the nucleus of an atom.
protons
400
The name of the scientist who made significant contributions to the periodic table is ______________________.
Mendeleev
400
______________is directly related to the amount of neutrons and protons in the nucleus of a particular element.
Atomic mass
400
Groups of different (or the same) atoms held together by chemical bonds are called _________________.
molecules
400
What is the number of different elements in the molecule, NaHCO3, (aka, “baking soda”)?
4
400
From your molecule-making knowledge, how many hydrogen atoms can bond with a single nitrogen atom?
3
500
The noble gases are known for being ______________________ .
unreactive
500
In a molecule of hexane, C6H14, each carbon atom has how many sites to bond with other atoms?
4
500
If the formula for hydrofluoric acid is HF, how many atoms of hydrogen would be able to bond with one atom of chlorine?
1
500
At room temperature, most elements are in what phase (or state)? ___________________
solid
500
Besides their symbol and name, what are 3 differences in the elements sodium and potassium?