sentences
stringlengths
9
187
label
int64
0
1
solid is a kind of state of matter
1
neutralization is when an acid reacts with a base
1
neutralization produces water and salt
1
an atom is a kind of particle
1
matter is made of atoms
1
electrons are a part of an atom
1
a electron has a negative -1 electric charge
1
the mass of the atom is determined by protons and neutrons
1
the nucleus of an atom is made of protons and neutrons
1
mercury is made of mercury atoms
1
particles in a liquid have more kinetic energy than particles in a solid
1
particles in a solid are closer together than particles in a liquid
1
atom is a kind of particle
1
mercury changes from liquid state to solid state
1
atomic mass is determined by the sum of protons and neutrons numbers in an atom
1
protons are a kind of subatomic particle
1
neutrons are a kind of subatomic particle
1
an atom is a kind of object
1
losing / gaining electrons causes the electrical charge of an object to be unbalanced
1
protons are found in the nucleus of an atom
1
a proton has a positive 1 electric charge
1
atoms with one or two valence electrons tend to lose those electrons
1
metal atoms usually have one or two valence electrons
1
an ion with positive charge is formed by atom losing electrons
1
one neutron has one atomic mass unit
1
the nucleus of an atom is usually made of both protons and neutrons
1
nucleus is a part of an atom
1
electrons surround / orbit the nucleus of an atom
1
if something is part of another thing, then another thing consist of that something
1
a proton has a positive 1 electric charge
1
a neutron has a neutral electric charge
1
an normal atom has a neutral electric charge
1
an electron has a negative -1 electric charge
1
an atom is made of protons / neutrons / electrons
1
the nucleus is the center of an atom
1
electrons are a part of an atom
1
electrons orbit the nucleus of an atom
1
neutrons are a kind of subatomic particle
1
a neutron has a neutral electric charge
1
one neutron has one atomic mass unit
1
an atom is positive 1 in electric charge
1
if a neutral atom loses an electron then an atom with a positive charge will be formed
1
a proton has a positive 1 electric charge
1
a neutron has a neutral 0 electric charge
1
the nucleus of an atom is made of protons and neutrons
1
the nucleus is the center of an atom
1
atomic mass is determined by the number of protons and neutrons
1
atomic number is only determined by the number of proton of an element
1
a electron has a negative -1 electric charge
1
an electron is a kind of charged particle
1
electrons are a part of an atom
1
electrons are involved in chemical reactions
1
angstrom unit is used to measure the distance between two points
1
a point is small in size
1
an atom is exceptionally small in size
1
atoms in a gas move independently of one another
1
atoms in a gas collide frequently
1
the atoms in a substance move independently of ont another and collide frequently
1
adding heat to an object causes chemical reactions
1
baking is when a human makes food by adding heat
1
a cake is a kind of food
1
placing a blanket on fire cuts off the oxygen
1
a fire requires oxygen to burn
1
if something is required for a process then keeping that something from reaching that process can stop that process
1
the drain cleaner is added into water
1
hydrogen is produced
1
the solution becomes really hot
1
a drain cleaner consists of sodium hydroxide and aluminum
1
metals in contact with water and oxygen will rust
1
iron is a kind of metal
1
nails are often made of iron
1
rust forming is a kind of chemical change
1
chemical change is a kind of chemical reaction
1
carbon dioxide is a kind of gas
1
vinegar is a kind of substance
1
vinegar is added into baking soda
1
baking soda is a kind of substance
1
baking soda can react chemically with vinegar producing carbon dioxide
1
chlorine is a kind of element
1
sodium and chlorine reacting forms sodium chloride
1
a compound is made of two or more elements chemically combined
1
sodium chloride is always made of chemically combined chlorine and sodium
1
sodium is a kind of element
1
chemical reactions do not cause the total number of atoms to change
1
6 atoms of carbon involves in photosynthesis
1
photosynthesis is a kind of chemical reaction
1
carbon is a kind of atom
1
chemical reactions cause new substances to form
1
iron in contact with water and oxygen will rust
1
chemical change is a kind of chemical reaction
1
rust forming is a kind of chemical change
1
zinc chloride and hydrogen gas are new substances
1
chemical reactions cause new substances to form
1
hydrochloric acid combing with zinc forms zinc chloride
1
hydrochloric acid combing with zinc forms hydrogen gas
1
chemical reactions cause chemical change
1
iron in contact with water and oxygen will rust
1
rust forming is a kind of chemical change
1
100 grams vinegar and 5 grams baking soda are combined in a container
1
the mass of the reactants of a chemical reaction equals to the products of the chemical reaction
1