Evaluate selenium (Se) on the periodic table and identify the number of electrons it would have to gain or lose, in order to become stable.
A. Gain 2 electrons
B. Lose 6 electrons
C. Gain 6 electrons
D. Lose 2 electrons
Gain 2 electrons
Analyze the difference between Ionic compounds and covalent compounds and their structure and chemical outputs. What is the main difference between a covalent bond and an Ionic bond?
Covalent bonds occur because of sharing electrons between atoms
Ionic bonds occur due to the distribution of electrons
Ionic and Covalent bonds are very much the same
Covalent bonds happen when electrons are transferred
Covalent bonds happen when electrons are transferred
What would the chemical equation be given the following compounds sodium nitrate and potassium chloride?
Na(NO3) + KCl
Na(NO3) + PCl2
Na1(NO3) + PCl
4.Na(NO3) + KCl
Na(NO3) + KCl
What is the Formula for antimony (V) oxide.
Sb5O2
Sb5O
Sb2O5
4. Sb2O
Sb2O5
Analyze the movement of the electrons of metals and nonmetals. Distinguish 1 difference between the movement of electrons in metals and nonmetals.
Nonmetals are hyper energetic, and have very low levels of ionization energy whilst metals do not.
Metals are cohesive solids that are unmovable and have slow paced electrons
Metals form cations
Nonmetals form cations
Metals form cations
Adjusting for the octet rule, does the sharing of valence electrons satisfy this rule during a covalent bond? and how would it work for Cl2
Yes, because when the valence electrons are shared, they give both the atoms a full shell of 8 valence electrons at the same time
Yes, because 2 electrons are circling around both the elements and are sharing the 2 valence electrons
No, because neither element has a full shell of valence electrons at any time
None of the above
Yes, because 2 electrons are circling around both the elements and are sharing the 2 valence electrons
What are the seven diatomic elements that cannot be on the products side as a single element?
H, N, S, F, P, Cl, K
H, O, F, Br, I, N, Cl
N, O, Br, F, l, Cl, C
N, O, F, Sa, Fl, I, Cl
H, O, F, Br, I, N, Cl
What is the Molar Mass of Nitrogen Oxide
15.999
14.007
28.014
30.006
30.006
Evaluate the ionic compound: (NH4)2SO3 . Identify the amount of elements that are in the compound.
Nitrogen: 1, Hydrogen: 4, Sulfur: 2 Oxygen: 3
Nitrogen: 2, Hydrogen: 8, Sulfur: 3, Oxygen: 3
Nitrogen: 2, Hydrogen: 8, Sulfur: 1, Oxygen: 3
Nitrogen: 1, Hydrogen: 8, Sulfur: 1, Oxygen: 3
Nitrogen: 2, Hydrogen: 8, Sulfur: 1, Oxygen: 3
C3 Question What is the chemical formula for tetraoxide Octachloride
O3Cl8
O4C8
O4Cl8
4. O3C8
O4Cl8
Analyze the chemical equation Al + Fe2O3 = Al2O3 + 2Fe. Is this equation chemical balanced, and does it follow the laws of conservations of mass?
Yes it does and it does follow the law of conservation of mass
No it is not, but yes it does follow the law of conservation of mass
No it is not, and it doesn’t follow the law of conservation of mass
Yes it does, but it doesn’t follow the law of conservation of mass
No it is not, and it doesn’t follow the law of conservation of mass
Which one of these Elements are satisfied without having 8 valence electrons and can form a Trigonal Planar?
Oxygen
Hydrogen Dioxide
Boron
Sulfur
Boron
Determine the name of the presented binary ionic compound: Na3N
Sodium Nitrite
Sodium Nitrate
Sodium Nitrogen
Sodium Nitride
Sodium Nitride
Analyze the covalent compound C3O4Cl. Determine the molar mass of the covalent compound
167.001
133.479
102.002
135.479
135.479
Evaluate your knowledge of double replacement and single replacement bonds, and balance the following chemical equations, by using the correct coefficient.
Cd(NO3)2 + Li3(PO4) → Li(NO3) + Cd(PO4)2
3Cd(NO3)2 + 2Li3(PO4) → 6Li(NO3) + 3Cd3(PO4)2
Cd(NO3)2 + 3Li3(PO4) → 5Li(NO3) + 2Cd3(PO4)2
3Cd(NO3)2 + 2Li3(PO4) → 6Li(NO3) + Cd3(PO4)2
2Cd(NO3)2 + 4Li3(PO4) → 8Li(NO3) + 4Cd3(PO4)2
3Cd(NO3)2 + 2Li3(PO4) → 6Li(NO3) + Cd3(PO4)2
Identify the following chemical equation.
MgCl2 + I2 →
Double Replacement
Single Replacement
Synthesis
Combustion
No Reaction
No Reaction
Question synthesize the ionic compound: Pb(NO3)2. Determine the Name of the compound
Lead(II) nitrate
Lead(I) nitrate (II)
Lead(II) nitride
Lead(II) nitrate (II)
Lead(II) nitrate
Question Examine the covalent compound C6H12O6. How many Hydrogen moles are there in the compound?
6 moles of hydrogen
12 moles of Carbon
12 moles of hydrogen
6 moles oxygen
12 moles of hydrogen
What is the coefficient ratio of the following chemical equation
Zn + 2HCl = ZnCl2 + H2
2,3,1,1
1,2,1,1
1:2:1:1
2:1:1:2
1:2:1:1
Identify the products of the following chemical equation
Mg + CrCl →
ClMg + Cr
Mg + Cr2Cl
Cr + MgCl
CrCl + Mg
Cr + MgCl