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Exam1 review

This document provides instructions for an activity where participants will get into groups of 5-6 people, write down the names of group members, and turn on a gaming buzzer by holding the on/off button for 5 seconds. It does not provide any other context around the purpose or nature of the activity.

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Let’s Get Started • Get in equal groups (let’s shoot for 5-6 people each) • Pull out a paper and write down the names of the people in your group. • Turn on gaming buzzer by holding the on/off button for 5 seconds
Water boils at 100 degrees C Is this a physical or chemical property?
Answer: Physical
What is an anion?
Answer Negatively charged ion.
Which state of matter retains its volume but adapts its shape to the container?
Answer Liquid
The fertilizer ammonium phosphate has nitrogen, hydrogen, phosphorous, and oxygen in a 3:12:1:4 ratio. What is chemical formula for ammonium phosphate?
Answer N3H12PO4
Which subatomic particle(s) is(are) found in the nucleus?
Answer Neutrons and protons
What is the shape of C2H4?
Answer Trigonal planar
How many neutrons in Cobalt- 60?
Answer Mass number 60 minus atomic number 27 = 33
What is an isotope of an element?
Answer Has the same number of protons, different number of neutrons.
What is the name of this N2O5?
Answer Dinitrogen pentoxide
How many mg in a kg?
Answer 1 kg x 1000 g x 1000 mg = 1 x 106 1 kg 1 g
What is the difference between an ionic and a covalent compound? (I’m not looking for the electronegativity difference- I want to know in terms of the electrons)
Answer Ionic is the transfer of electrons Covalent is the sharing of electrons
What is the charge and mass in amu of each of the following: neutron proton electron
Answer Neutron = 0 charge, 1 amu Proton = +1 charge, 1 amu Electron = -1 charge, 0.0005 amu
Name an isotope of? 14C 6
Answer 12C Carbon-12 6
How many electrons in Ca2+?
Answer 18 Atomic number of calcium is 20. Neutral atom would have 20 electrons. Positive 2 charge indicates that it has lost 2 electrons.
How many electrons can be accommodated in 3d subshell?
Answer 10
What ion is sulfur most likely to form?
Answer S2-
What is the electron configuration of sulfur?
Answer 1s22s22p63s23p4
Periodic Table: What is Iron classified as?
Answer Transition metal
How many valence electrons does phosphorous have?
Answer 5 P is in group 5.
How many double bonds AND unpaired electrons in the lewis structure of CH3OH
Answer 0 double bonds and 4 unpaired electrons on the carbon.
Which element has a higher ionization energy, P or Cl?
Answer Cl Ionization energy is the energy required to remove the most loosely held electron from an atom in the gaseous state
How many significant figures are in 0.0402?
Answer 3 -Zeros at the beginning of a number are never significant -Zeros between numbers are significant
What is the electronegativity different for an ionic bond?
Answer Greater than 1.9
What type of bond is formed from the unequal sharing of electrons?
Answer Polar
What is the formula of a compound formed between aluminum and chlorine?
Answer AlCl3
What is the name of FeO?
Answer Iron (II) oxide Or Ferrous oxide
Classification of matter What would the alloy, bronze, be classified as?
Answer Homogenous mixture