christiana

give the state symbols of the reaction: 2H2 +O2 =2H2O

balance the equation:C2H6 + O2 = CO2 + H2O

during the burning of coal: C + O2 = CO2 if 12g of carbon is burnt in plenty of oxygen,what mass of carbon dioxide is produced

what is the magnification of an object 2cm tall when placed 10cm in front of a plane mirror?

At a sale, all clothing was marked down 15%. Beth bought a blouse originally priced at $10.95 and a scarf for $8.85. What was the amount discounted on her purchase? Am I supposed to assume that the $8.85 was already after the discount?

1. The weight of a dire wold is greater than domesticated lapdogs. Which edit should be made to correct this sentence? A. change weight of a dire wolf to dire wolf's weight B. change weight of a dire wolf to weight of some dire wolves C. change than domes...

What is the value of 3/4*7/8*15/16 rounded to the nearest 0.25? A. 0.25 B. 0.50 C. 0.75 D. 1.00 When I multiplied it out, I got 0.61523.., so the answer would be B, right?

A glass bottle full of mercury has 500g on being heated through 35 degree, 2.43g of mercury are expelled. calculate the mass of mercury remaining in the bottle (cubic expansivity of mercury,=1.8*10"-4) (linear expansivity of glass =8.0*10"-6)

A vapor volume of 1.06 L forms when a sample of liquid acetonitrile, CH3CN absorbs 1.00 kJ of heat at its normal boiling point (81.6 ∘C and 1 atm). Part A What is ΔHvap in kilojoules per mole of CH3CN?

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