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15 questions
You can figure out how many protons an element has by...
Looking at the atomic number
Looking at the mass
Subtracting the mass and atomic number
You can figure out how many electrons an element has by...
Looking at the atomic number
Looking at the mass
Subtracting the mass and atomic number
You can figure out how many neutrons an element has by...
Looking at the atomic number
Looking at the mass
Subtracting the mass and atomic number
What are the dots that circle the outside of an atom?
Protons
Neutrons
Electrons
What is a molecule?
Two or more of the SAME atom combined
Two or more of DIFFERENT atoms combined
What is a compound?
Two or more of the SAME atoms combined
Two or more of DIFFERENT atoms combined
Ms. Warner is making hot chocolate. She adds 10g of hot chocolate to a cup of boiling water. Based on the law of conservation of mass, what should her ending mass be of her hot chocolate?
More than what she started with
Less than what she started with
The same as what she started with
True or False: the equation in the picture IS balanced.
True
False
True or False: the equation in the picture is NOT balanced.
True
False
Ms. Warner is making a cake. She adds 3 eggs, oil, and water to her cake mix. What is her product?
The ingredients (eggs, oil, water, cake mix)
The cake
Ms. Warner is making peppermint bark. She adds milk chocolate, white chocolate, and candy canes. What is her reactants?
The ingredients (milk chocolate, white chocolate, candy canes)
The peppermint bark
Is water a compound or a molecule?
Compound
Molecule
In chemistry, the name for salt is NaCl. This is called the:
element
atom
chemical formula
What is the atomic number of iron?
26
55.845
29.845
What is the mass of iron?
26
55.845
29.845