1
Which of these words does not refer to a category of states of matter:
Water
Mole is the unit of which physical quantity:
Amount of substance
Forms of atoms with different number of neutrons are called:
Isotopes
In Avogadro's number, 6.022140857 × 1023, the following categories of numbers are used
a decimal and a power
When writing reactions, adding numbers of moles of reactants and products makes the rection …
Balanced
The statement: "Matter is neither created nor destroyed" is called the Law of mass …
conservation
The arrow symbol in chemical reaction can be read as:
yield
The name of the chemical FeS is …
Iron sulfide
The number by which one another number or symbol or variable is multiplied is called:
Coefficient