What's That Property?
Is color a physical property?
What is yes?
An electron is symbolized by what letter and sign in science?
What is e-?
This states that atoms tend to gain, lose, or share electrons to achieve 8 valence electrons.
What is the term for A + B -> AB?
What is synthesis?
This is the minimum energy required to start a reaction.
What is activation energy?
What is the density formula?
This atom loses electrons and gains a net positive charge.
What is a cation?
What is the term for two or more substances combined but retaining their individual properties, but can be separated physically?
What is a mixture?
This speeds up a reaction by providing an alternate pathway with a lower activation energy.
What is this called: Mass is neither created nor destroyed; the total mass of the reactants must equal the total mass of the products?
What is the Law of the Conservation of Mass?
This property shows an element's ability to burn or react with oxygen and produce light or heat.
What is flammability?
This atom gains electrons and receives a net negative charge.
What is an anion?
What is the term for the sharing of electrons, typically between two nonmetals?
What is a covalent bond?
In an experiment, 12.4 g of a solid reacts completely with 17.6 g of a liquid. What is the final mass of the product?
What is 30 grams?
This uses the element symbol and dots to represent the number of valence electrons.
What is the Lewis Dot Structure?
This can be observed or measured without changing the substance's chemical composition.
What is a physical change?
What is the formula to find the atomic mass of an unknown substance?
What is protons plus neutrons?
Are oil and water homogeneous or heterogeneous when reacted?
What is heterogeneous?
Is this likely Exothermic or Endothermic?:
A + B -> C + D + Heat
What is exothermic?
This means the rate of change of velocity.
What is acceleration?
If an unknown object, x, sinks in an unknown liquid, y, is its density greater or less than the liquid itself?
What is greater than?
Classify an atom with 12 protons, 12 electrons, and 20 neutrons, but not its normal number of neutrons.
This dissolves what is being dissolved.
What is a solute?
AB + CD -> AD + CB is an example of double replacement. What also happens (Hint: Subatomic particles) along with this exchange?
What is an exchange of ions?
This is the ease of combining chemically with other substances, like rusting or tarnishing.
What is reactivity?