This is the number of significant figures in 0.02055 g.
What is four?
100
This is how many mm you have in 1 m
What is 1000?
100
This is the element with the symbol Ne.
What is Neon?
100
These are photons which have the highest energy in the electromagnetic spectrum.
What are gamma rays?
100
This is the term used to describe something that contains two or more substances.
What is mixture?
200
This is the number of significant figures in 0.0200 g.
What is three?
200
This is how many years there are in 1.58 x 10^10 s.
What is 500. (3 sf) years?
200
This number tells you the number of protons in an atom.
What is the atomic number?
200
This is the maximum number of electrons that an orbital can hold.
What is two?
200
This is the term for the change of state from solid to liquid.
What is melting?
300
This is the number of significant figures in the answer to the following operation: 2.00 x 0.35=
What is two sig figs?
300
This is the speed of a snail in m/s that took 120 min to travel 6.5 in. (1 in=2.54 cm)
What is 2.3 x 10^-5 m/s?
300
This is the term for an element that has different mass numbers.
What is isotope?
300
This is the number of sublevels in the third energy level.
What is three?
300
This is the specific heat of a 0.565 g substance that absorbs 455 J of energy and increases in temperature by 50.5 C
What is 15.9J/g C?
400
This is the answer in the correct number of significant figures for the following operation: 0.456 + 0.77
What is 1.22?
400
This is the price of gold that could be extracted from 1.00 x 10^6 L of seawater. (It is said that there is 64 ug of gold in 1 L of sea water and the price of gold is $1000 per oz.)
What is $2300?
400
This is the nuclide symbol of an isotope that has 27 protons, 27 electrons, and 33 neutrons.
What is Cobalt-60 symbol?
400
This is the electron configuration of potassium.
What is 1s2-2s2-2p6-3s2-3p6-4s1?
400
This is the number of neutrons in silver-110.
What is 63?
500
This is the answer to the following operation in the correct number of significant figures: (1.025-0.945)/(5.654+0.0345)
What is 0.014?
500
This is the amount, in grams, of salt (NaCl) you have in 54 mL of a solution (d=1.10 g/mL) that is 15% (w/w).
What is 8.91 g?
500
This is the atomic mass of an element that contains two isotopes (24.98 amu; 75.46% and 25.99 amu; 24.54%).
What is 25.23 amu?
500
This is the number of valence electrons in zinc.
What is two?
500
This is the wavelength of a photon with a frequency of 98.9 MHz.