Yes because metal is more attracted to heat from the sun
The reactants side are the first ones in a chemical reaction.
Answer:
57.47 grams of sodium is in the sample.
Explanation:
Given that a 100.0-g sample of sodium hydroxide contains sodium, oxygen, and hydrogen, and the sample contains 2.53 g of hydrogen and 40.0 g of oxygen, to determine what mass of sodium is in the sample the following calculation must be performed:
100 - (40 + 2.53) = X
100 - 42.53 = X
57.47 = X
Therefore, 57.47 grams of sodium is in the sample.
<span>The work done by the gas can be derived from this formula:
Work done = P dV ( this is the same as PdeltaV)
Now remember P = 44atm and
Now dV ( deltaV) = 4.5 - 7.4 = -2.9L ( its contracting) = -2.9 x 10 ^-3m^3
Now remember 1 atm = 101300 pascals
Therefore work done by gas = P dV
= 44 * -2.9 * x 10 ^-3 *101300
Therefore the above result becomes:
= -12925.88
= -13000J to 2 significant figures</span>
Answer:
101.69 grams.
Explanation:
The reaction involved in the preparation of Iodine is mentioned in the question as -
⇒ 
Looking at the stoichiometric coefficients we can say that 2 moles of 
is required for the preparation of one mole of 
. In terms of mass we can say that, 299.78 grams of is required for the production of 253.81 grams of .
Now, since 253.81 grams of is produced by 299.78 grams of
So,
Grams of required for the production of 86.1 grams of =
grams
