Other Chemistry Answers

1 mol of hydrogen gas and 1 mol of iodine vapour were mixed and allowed to react.
After t seconds, 0.8 mol of hydrogen remained.
The number of moles of hydrogen iodide formed after t seconds was;
A 0.2
B 0.4
C 0.8
D 1.6

What would the molarity of the final solution be if (1.150x10^-2) L of (2.53x10^0) M HCl is placed in a (6.0000x10^2) mL volumetric flask and diluted to the mark with distilled water?

A student boils 9.43 grams of an unknown substance into vapor. If completely vaporizing the substance required 8,720 joules of energy, what is the heat of vaporization?

From(MODERN CHEMISTRY SECTIONN REVIEW) give two different instruments routinely used in chemistry

ou are stranded on a desert island on which there are 375 native inhabitants. For every inhabitant there are two hands, for every hand there is an eye; for every eye, there is is a footprint; and for every four footprints
there is a dinosaur; for every 40 ducks there is 0.5 dinosaur, and 32 pineapples for every 20 ducks; there is one palm tree for every 12 pineapples, and for every palm tree there are 12 cacti; for every 30 pineapples there are 20 turtles; for every 30 turtles there is an anchor, there are 100 anchors for every wave, and 30 trees for each wave." How many turtles are on the island?"

Fe2O3+3Co->2Fe+3Co2
How many grams of iron can be produced from 10.50 of Fe2O3

In the calibration of a calorimeter, an electrical resistance heater supplies 80.0J of
heat and a temperature increase of 1.20°C is observed. What is the initial
temperature of 8.50 g of gasoline (C8H18) with molar heat capacity of 39.36 J mol-
1 K-1 after heating in the same calorimeter? The initial temperature of the
calorimeter is 28.0°C and the final temperature of the system is 50.0°C

If 1cm^3 of water equals to 1 ml of water,how many liters would be in 1m^3 of water

A graduated cylinder was placed under the spout of a full overflow can.A piece of metal was placed into the can .100ML of water was displaced into the cylinder .What is the volume of the piece of metal?

Hydrogen and oxygen combine in a ratio of 1:8 to form water .indicate what will happen if we combine 14g hydrogen with 50g of oxyen.