Acids/Bases/Salts
Lemon Juice is sour and has a pH of 2 to 3 so it is classified as:
Acid
NaCl is an ionic bond between a metal and nonmetal so it is a(n)?
Salt
Is the following equation balanced?
2H2 + O2 --> 2H2O
Yes
Substance with definite shape and definite volume.
Solid
Boiling point
Physical
With a pH of 7, pure water is considered to be?
Neutral
NaOH gives up an OH- in chemical reactions therefore it is a?
Base
The number 2 in the chemical formula H2O is called the:
Subscript
Gas
Reactivity
Chemical
An unknown solution has a pH of 8 so it would be considered:
A Base
An endothermic reaction absorbs this from its surroundings?
Heat(energy)
In the chemical formula CaMg(CO3)2, how many atoms of Carbon are represented?
2
Substance where the particles can vibrate but are tightly packed together.
Solid
Solubility
Physcial
A compound that gives up H+ ions in reaction is considered:
An Acid
Types of combustible materials react and produce heat so they are considered this type of reaction?
Exothermic
When balancing chemical equations you can only change these numbers?
Coefficients
Water at 45 degrees Celsius is a:
liquid
When baking soda is placed in a container of vinegar and bubbles are produced
Chemical reaction
An acid/base reaction such as
HCl + NaOH --> NaCl + H2O
is known as this type of reaction:
Neutralization
Soap which is slippery is considered a base so it has a pH greater than
7
Where do you need to add a coefficient and which coefficient is needed to balance the following equation:
Fe2O3 + CO --> 2Fe3O4 + CO2
3 in front of Fe2O3 on left side
Only metal that is a liquid at room temperature.
Mercury
Density
Physical property