Breaking Bad...ly arranged
This element, represented by "O," is essential for respiration in most life forms.
Oxygen
This type of bond is formed when electrons are transferred from a metal to a non-metal.
Ionic bond
In a covalent bond, atoms do this with their electrons
share
This is the starting substance in a chemical reaction.
reactant
This element is represented by the symbol "H" and is the lightest on the periodic table.
Hydrogen
With the symbol "Au," this element is highly valued for jewelry and investments.
gold
The formula NaCl represents this common ionic compound.
Table salt
This type of _________ results when atoms are held together by covalent bonds, like H₂O or CO₂.
molecule
Combining baking soda and vinegar which results in bubbles is an example of _______________
Chemical reaction
In an ionic compound, a metal loses electrons to become this type of ion.
cation
This gaseous element, found in balloons, is the second lightest and second most abundant element in the universe.
helium
This shiny, malleable group of elements on the left side of the periodic table are good conductors of electricity.
metals
This element, with 4 valence electrons, is the backbone of organic molecules and often forms 4 covalent bonds.(a method for determining the age of an object)
Carbon
This type of reaction occurs when two or more substances combine to form a single new substance.
synthesis
In a covalent bond, atoms achieve stability by doing this with electrons.
share them
*** TRIPLE ***
The only metal that is liquid at room temperature, this toxic element has the symbol "Hg."
Mercury
This group of metals, including calcium and magnesium, is found in Group 2 and is highly reactive, though not as much as the alkali metals.
what are alkaline and earth metals
When two atoms share two pairs of electrons, they form this kind of covalent bond.
double-bond
In this type of reaction, one element replaces another in a compound.
single repacement
This type of chemical reaction breaks down one compound into two or more simpler substances.
decomposition
This element, atomic number 92, is used as fuel in nuclear reactors.
Uranium
This term refers to the positively charged ion in an ionic compound, typically formed by metals.
cation
*** DOUBLE ***
In a polar covalent bond, electrons are shared unequally because of a difference in this property.
electronegativity
A chemical reaction that releases heat is described using this term
exothermic
*** DOUBLE ***
This law states that in a chemical reaction, matter is neither created nor destroyed, which is why chemical equations must be balanced.
Law of conservation of mass