Chemistry, 26.07.2019 09:00 babydoll818

Hydrazine (n2h4), a rocket fuel , reacts with oxygen to form nitrogen gas and water vapor. the reaction is represented with the equation: n2h4(l) + o2(g) → n2(g) + 2h2o(g) how many grams of hydrazine are needed to produce 96.0g water?

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The given equation is:
N2H4(l) + O2(g) → N2(g) + 2H2O(g)

From the periodic table:
mass of nitrogen = 14 grams
mass of hydrogen = 1 gram
mass of oxygen = 16 grams
Therefore:
molar mass of N2H4 = 2(14) + 4(1) = 32 grams
mass of water = 2(1) + 16 = 18 grams

From the balanced equation:
1 moles of N2H4 produces 2 moles of H2O.
32 grams of N2H4 produce 18*2=36 grams of water
To know the mass of N2H4 needed to produce 96 grams of water, all you need to do is cross multiplication as follows:
mass of N2H4 = (96*32) / 36 = 85.3334 grams

Answer from: Quest

Ifound this on google “these two compounds have a different ionic structure. caesium ion is larger in size when compared to the sodium ion. the charge gets more area to spread out evenly. so caesium chloride has a lower melting point than sodium chloride.” i hope this you for what your looking for

Answer from: Quest

answer: - 3.) the oxidation state of nitrogen in no changes from +2 to 0, and the oxidation state of carbon in co changes from +2 to +4 as the reaction proceeds.

solution: - as per the rules, oxidation number of oxygen in its compounds is -2. the sum of oxidation numbers of all the elements of a molecule or compound is zero.

also, the oxidation number in elemental form is zero.

in no, the oxidation number of o is -2 so the oxidation number of n is +2 so that the sum is zero.

similarly, the oxidation number of c in co is +2 and o is -2.

on product side the oxidation number of n is 0 as it is in the elemental form( $n_2$ ) .

oxidation number of c in carbon dioxide is +4 as there are two oxygen in it and we know that each oxygen is -2.

so, oxidation number of n is changing from +2 to 0 and the oxidation number of c is changing from +2 to +4.

since nitrogen is reduced and hence no is acting as an oxidizing agent. carbon is oxidized and so co is acting as a reducing agent.

so, the right choice is number 3.)the oxidation state of nitrogen in no changes from +2 to 0, and the oxidation state of carbon in co changes from +2 to +4 as the reaction proceeds.

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Hydrazine (n2h4), a rocket fuel , reacts with oxygen to form nitrogen gas and water vapor. the react...

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