numbers
How many sig figs are in 0.000002?
What is 1
What is the molar mass of Kr?
What is 83.798
Covalent bonds involve bonds with metals- true or false?
What is false
What is 1.204x1024 molecules
Write the unbalanced equation for reaction between gaseous oxygen and gaseous hydrogen to form water (liquid).
What is H2 (g) + O2 (g) -> H2O (l)
What is scientific notation of 0.000002?
What is 2x10-6
How many neutrons are found in Se (estimated)?
What is 45 neutrons
Ionic type one bonds involve which metals?
What is group 1, 2, Ag, Cd, Zn, Al
How many liters are in 4.3 moles of O2 at STP?
What is 96.32 L of O2
Balance this equation :___ H3PO4 + ___ KOH -> ___ K3PO4 + ___ H2O .
What kind of chemical reaction is this?
What is H3PO4 + 3 KOH -> K3PO4 + 3 H2O and double replacement
What is 30.6 x 4.056? Give your answer in scientific notation with sig figs.
What is 1.5 x 102
how many valence elcetrons are found in group 1A?
What is 1
Please write the name of this compound and indicate when type of bond it uses: C2S4
What is dicarbon tetrasulfide, covalent
What is the molar mass of high performance gasoline (C12H26)?
What is 170 g
What type of reaction ends with products CO2 and H2O?
What is combustion
What are the correct sig figs for the answer to this equation (2.290 x 106) ÷ (6.7 x 104) ?
What is two, 1.5 x 1011
How many valence electrons are found in group 16?
What is 6
Please write the formula for this compound and the type of bond it uses: Hf3P2
What is Hafnium(II)phosphide, ionic type 2
How many moles of C12H26 are found in 2.24 x 1010 g of gasoline?
What is 1.32 x 108 moles of gasoline
Balance this equation and tell what type of reaction it is:
__ CH3CH2CH2CH3 + __ O2 -> __ CO2 + __ H2O
What is 2 CH3CH2CH2CH3 + 13 O2 -> 8 CO2 + 10 H2O
combustion
Convert 14.28 cm + 7.5 cm into m.
What is 0.2 m.
How do you calculate percent contribution of C12, C13, and C14 to the molar mass of C?
What is C12 mass (frequency) + C13 mass (frequency) + C14 mass (frequency)
Please write the name of this compound and the bond it uses: Sr2F4
What is Strotium fluoride, ionic type 1
If you have 3400 L of Ar at STP to warm your dry suit during a long dive, how many particle of Ar is that?
What is 9.14 x 1025 particles of Ar.
Balance this equation and give the reaction:
___ Rb + ___ S8 -> ___ Rb2S
What is 16 Rb + S8 -> 8 Rb2S and synthesis