Types of Particles
These are the smallest particles of an element that still keep the properties of that element.
What are atoms?
This is the balanced equation requirement that ensures atoms are conserved.
What is balancing chemical equations?
The molar mass unit commonly used in chemistry.
What is grams per mole (g/mol)?
Avogadro’s number is approximately this value.
What is 6.022×1023 ?
The tool commonly used to measure mass in a chemistry lab.
What is a balance?
These particles are made when two or more atoms are chemically bonded together.
What are molecules?
If 2 moles of H₂ react with 1 mole of O₂, this many moles of H₂O are produced.
What is 2 moles?
The molar mass of water (H₂O).
What is 18 g/mol?
One mole of carbon atoms contains this many atoms.
What is 6.022x1023 atoms?
This piece of glassware is most accurate for measuring liquid volume.
What is a graduated cylinder?
These particles are found in ionic compounds like NaCl.
What are formula units?
The coefficients in a balanced equation represent these relationships.
What are mole ratios?
This element contributes about 35.45 g/mol to NaCl’s molar mass.
What is chlorine?
Avogadro’s number converts between moles and this.
What are particles?
This safety equipment protects your eyes during experiments.
What are safety goggles?
This negatively charged particle is found outside the nucleus.
What are electrons?
If you have 4 moles of NaCl, this many moles of Na are present.
What are 4 moles?
The molar mass of CO₂ rounded to the nearest whole number.
What is 44 g/mol?
These are the three common particle types counted using moles.
What are atoms, molecules, and formula units?
The SI unit for amount of substance.
What is the mole?
The nucleus contains these two types of particles.
What are protons and neutrons?
In a reaction, the reactant that runs out first is called this.
What is the limiting reactant?
To calculate molar mass, you add together these values from the periodic table.
What are atomic masses?
If you have 2 moles of helium, you have this many atoms.
What is 1.204x1024 atoms?
This should always be checked before starting a chemistry lab.
What are safety procedures or instructions?