Matter and Measurement
This is the number of kJ in 400 J.
What is 0.4 kJ?
What is protons + neutrons?
The classification of the majority of elements on the Periodic Table
What is a metal?
The change in energy associated with the following reaction:
I + I --> I2
What is releasing energy?
The sum of the masses of the elements in a compound.
What is the Gram-Formula Mass?
The measurement 12,050. grams has this number of significant figures.
What is 5?
The charge of an ion with
15 p+
16n
18 e-
What is 3-?
An element with similar chemical properties to Calcium.
What are Be, Mg, Sr, Ba, and Ra?
How valance electrons form ionic bonds?
What is transferring?
These three things are conserved during all chemical reactions.
What are mass, charge, and energy?
A mixture separation technique that is used to separate sand from water.
What is filtration
An electron in this shell of calcium in the ground state has the most energy.
What is the fourth electron shell of calcium?
These elements form colored ions in solution.
What are transition metals?
The type of bonding in Ca(OH)2.
What is BOTH ionic and covalent?
The mole ratio of NaOH to Al(OH)3 in the following equation:
Al2(SO4)3 + 6NaOH --> 2Al(OH)3 + 3Na2SO4
What is 3:1?
This classification of matter consists of two or more different elements chemically combined in a fixed proportion.
What is a compound?
This experiment established that the nucleus is a small, dense, positive charge surrounded mostly by empty space.
What is Rutherford's Gold Foil Experiment?
The trend in electronegativity as you move across a period.
What is increasing electronegativity?
What is 4 electrons?
The percent by mass of bromine in the compound AlBr3.
What is 90%
An aqueous solution is classified as this type of mixture.
What is homogeneous?
The charge of the nucleus of copper.
What is +29?
Two forms of the same element with different structures and different properties.
What are allotropes?
The molecular and bond polarity of CO2.
What are polar bonds and a nonpolar molecule?
The sum of the coefficients of the following balanced reaction:
__ Ag2S + __ Al --> __ Ag + __ Al2S3
What is 12?