Concerning accuracy and precision, if the actual length of the pencil is 15.85 cm, the following numbers 15.33 cm, 15.34 cm, 15.33 cm, 15.33 cm, 15.34 cm are
What is precise but not accurate
200
Vinaigrette is a ____________ mixture.
What is a heterogeneous mixture.
200
The orbital diagram shown gives the electron configuration for this element.
What is nitrogen.
200
The name for the formula H2SO4
What is sulfuric acid.
200
The molar mass of FeO
What is 71.9 g/mol
300
The scientific notation of 152,000
What is 1.52 x 10(5)
300
A mixture that is the same throughout (a solution)
What is a homogeneous mixture.
300
This is the electron configuration for this element. 1s2 2s2 2p6 3s2 3p3
What is phosphorus
300
The pH of 1.0 x 10 -10 is ________, which makes it a _____________.
What is 10, base
300
The percent composition of Mg in MgCl2
What is 25.3%.
400
read the graduated cylinder
What is 30.0 mL
400
Discovered the nucleus using the famous Gold Foil Experiment.
Who is Rutherford.
400
Comparing atomic radii, chlorine is ___________ than argon.
What is larger.
400
The chemical reaction would be for the following:
Solid potassium nitride reacts with aqueous calcium hydroxide to produce aqueous potassium hydroxide and solid calcium nitride.
What is
2 K3N (s) + 3 Ca(OH)2 (aq) --> 6 KOH (aq) + Ca3N2 (s)
400
The number of liters in 65.9 grams of LiF.
What is 57 liters.
500
An irregular object of copper is weighed and it’s mass is determined to be 44.7 grams. The object displaced a volume as shown below. Determine the density of the object.
What is 8.94 g/mL
500
The theoretical temperature when particles stop moving
What is absolute zero.
500
The geometry of NH3
What is trigonal pyramidal.
500
The type of bond shared between the following compounds:
H2, F2, NH3 and CH4
What is nonpolar covalent
500
2 Fe2O3 + 6 H2 --> 4 Fe + 6 H2O
The mass of iron produced when 78.5 grams of iron (III) oxide decomposes