Math
What is the density of a solid with a mass of 16g and a volume of 5cm3?
3.2 g/cm3
Which particles are located in the nucleus?
protons and neutrons
Chemical or physical change?
frying an egg
chemical
______________ are 3 dimensional regions where electrons are located.
orbitals
How many protons, electrons and neutrons are in silicon-29?
14 protons, 14 electrons, 15 neutrons
KI + CaCl2 --> KCl + CaI2
332g KI reacts with 111g CaCl2. What mass of products forms?
443 g
Which part of the atom has the most mass?
the nucleus
heterogeneous or homogeneous mixture?
spaghetti and meatballs
heterogeneous
These are the electrons in the outermost energy level of an atom
valence electrons
How many electrons are in the iodide ion?
54
If 1000g = 1 kg, how many kg are in 1740g?
1.74 kg
____________________ is the number of protons in an atom.
atomic number
chemical or physical property?
boiling point
physical
This occurs when your measurements are all near the same value.
precision
This piece of equipment is used for determining the exact volume of a liquid.
graduated cylinder
The element Mukorkine has two isotopes, mukorkine-46 with a a mass of 46.043 amu and mukorkine-47 with a mass of 47.431 . Mukorkine is made up of 57.87% of mukorkine-46 and 42.13% of mukorkine-47. What is the average atomic mass of mukorkine?
46.63 amu
Rings represent __________ in a Bohr model
energy levels
States of matter that have a definite volume
solid and liquid
this type of ion has a negative charge
anion
How many protons, electrons and neutrons are in an atom of 7935Br?
35 protons, 35 electrons, 44 neutrons
A solid has a mass of 25g. It is placed in a graduated cylinder that has 55mL of water. The water level rises to 56.75 mL. What is the density of the solid?
14.29 g/cm3
This is the smallest particle of an element that has properties of that element.
atom
element or compound?
glucose
this is an atom's ability to attract shared electrons to itself
electronegativity
How many rings would a Bohr model for mercury have?
6