Chemistry
How do the products of a chemical reaction compare to the reactants?
They have the same number of atoms
What is the element symbol for Nitrogen?
Protons have this charge
What is a postive charge?
During a chemical reaction you notice a temperature decrease. This is an example of what?
What is an endothermic reaction.
The formula to calculate the number of neutrons in an atom
What is Atomic mass - Atomic number
The number you use to find the number of electrons in a neutral atom.
atomic number
WHAT ARE THE THREE STATENS IF MATTER
SOLID LIQUID GAS
What is the element symbol for Calcium?
Ca
Baking ingredients for a cake results in what kind of change?
chemical change
Located on the left of the arrow in a chemical equation
What are reactants
The atomic number tells us this.
What is the number of protons?
A mixture is an example of what type of change?
Physical or chemical change
Water is made of these two elements.
What is hydrogen and oxygen?
6CO2 + 6H2O + sunlight energy -> C6H12O6 + 6O2
What is this an example of?
What is a chemical equation?
the atomic number of selenium
34
Glucose has a chemical formula of C6H12O6, Glucose is a
Compound
A sign of a chemical reaction that releases energy to the surroundings
What is exothermic
Two different elements that have bonded. they form a
compound
6CO2 + 6H2O + sunlight energy -> C6H12O6 + 6O2
is a balanced or unbalanced equation?
balanced
Name all 3 subatomic particles.
What are Protons, Neutrons, and Electrons
WHAT IS THE NAME FOR a recipe to build a molecule or compound?
What is chemical formula?
Making ice cubes from water is what kind of change?
physical change?
The majority of the mass of an atom is located in what location in the atom?
Nucleus
Has 1 proton and no neutrons
What are Hydrogen?
The sum of protons and neutrons in the nucleus of an atom is known as the _________
What is the mass number?
A compound is formed by
What is chemical bonds
When a color change occurs this is evidence that what kind of change has occurred
What is a chemical reaction
Neutrons have this kind of charge
What is a neutral charge?
Finish the sentence:
Energy is neither ..... nor ...... it is simply converted from one form -- ------
created
destroyed
to another.
Which subatomic particle impacts charge and mass
What is a proton?