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Go Back   Freemason Hirams Travels Masonic Forums > Science & Mathematics > Chemistry

Chemistry Chemistry

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Old 03-10-2008, 10:08 PM
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Chris S has a spectacular aura about
I lied chemistry again?

Predict the products choosing as many as apply.
a. CaO(s) + H2O(l) à
b. CaOH(aq)
c. Ca(OH)2(aq)
d. No reaction occurs
Find the number of moles in 150 g of Magnesium.
a. 10 moles
b. 1 mole
c. 6.17 mole
d. 3 moles
What must be produced for a double-replacement reaction to occur?
A. Solid precipitate
B. Gas
C. Molecular compound
D. All of the above
Find the number of liters of hydrogen gas in 20 g of hydrogen at STP.
a. 222.4 liter
b. 1 liter
c. 19.7 liter
d. 2.2 liter
2KClO3 ---> 2 KCl + 3 O2
How many moles of O2 can be produced by letting 12.00 moles of KClO3 react?
a. 3
b. 2
c. 18
d. 24
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