Atomic Attack
A positively charged particle that is found in an atom's nucleus.
What is a proton?
Pure copper is which of the following: element, compound, mixture
What is an element?
Tearing paper is an example of this...
What is a physical change?
This law says matter is not created or destroyed in ordinary chemical reactions.
What is the Law of Conservation of Mass?
True or False: Your body is made of atoms, just like everything else around you.
What is true? Your body, your desk, your clothes, even the air you breath are all made of atoms.
This subatomic particle has a negative charge.
What is an electron?
Salt water is an example of this?
What is a mixture?
Iron rusting is an example of this...
What is a chemical change?
A sealed container starts with 50 grams of matter. This is the total mass after the reaction.
What is 50 grams?
True or false: Diamond and pencil graphite are both made of carbon?
What is true?
These two subatomic particles are found in the neucleus.
What are protons and neutrons?
A substance made of two or more elements chemically bonded together.
What is a compound?
This is one sign that may indicate a chemical reaction has occured.
What is, gas production, temperature change, color change, precipitate forms, or light emission...
This is why an open container might lose measured mass during a bubbling reaction.
What is gas escapes into the atmosphere?
True or False? You can change an atom into a different element just by adding an electron?
What is false? The number of protons determines the element.
If an atom has 7 protons and 7 neutrons, its nucleus contains this number of particles.
Air is an example of this.
What is a mixture of gases?
Cooking an egg is an example of this...
12 grams of substance A reacts with 8 grams of substance B in a closed system. This is the total mass of the products.
What is 20 grams?
True or False: Bubbles always prove a chemical reaction happened?
What is false? Bubbles can form during physical processes such as boiling.
A atom has 6 protons, 6 neutrons, and 6 electrons. In a Bohr model, the electrons would be arranged like this.
What is 2 in the first shell and 4 in the second shell?
This is why H₂O is a compound rather than a mixture.
What is, hydrogen and oxygen are chemically bonded in a fixed ratio.
A candle burns and wax melts. This action is a chemical change, and this action is a physical change.
What is the candle burning is a chemical change and the wax melting is a physical change.
A balloon inflates during a reaction in a sealed bottle. Did this reaction create matter? Explain.
True or false: A gas can have mass even though you cannot see it?
What is true?