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Naddik [55]
3 years ago
13

Deuterium is an isotope of hydrogen. the nucleus of a deuterium atom consists of one proton and one neutron. when 2 deuterium nu

clei fuse, helium-3 is formed, and a neutron is emitted. which equation illustrates this process?
Chemistry
1 answer:
ozzi3 years ago
3 0
D + D → ³He + n + E

or
²H + ²H → ³He + n + E

D=²H
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Which group on the periodic table already stable?
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The noble gases AKA the column with full outermost valence shells. (Group 18)
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3 years ago
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A student has a 2.123 g sample of a hydrated salt. she heats it to drive off all the water. after heating to constant mass, the
morpeh [17]
The mass of hydrated salt - 2.123 g
mass of anhydrous salt - 1.861 g
mass that has been reduced is the mass of water that has been heated and lost from the compound thereby making the salt anhydrous.
therefore mass of water lost - 2.123 - 1.861 = 0.262 g
number of moles of water lost - 0.262 g / 18 g/mol = 0.0146 mol 
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3 years ago
A tow truck does 10,000 J of work in 5 seconds. Calculate the power.
chubhunter [2.5K]

Answer:

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5 0
3 years ago
Select the properly written and balanced equation for the following chemical reaction: Sodium metal and an aqueous solution of m
Setler [38]

Answer:2Na(s)+MgI_2 (aq)\rightarrow 2NaI(aq)+Mg(s)

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This is a single displacement reaction in which a more reactive element displaces the less reactive element from its salt solution. Thus sodium is more reactive than Mg and thus displaces it from MgI_2.

2Na(s)+MgI_2 (aq)\rightarrow 2NaI(aq)+Mg(s)

The number of atoms of each element must be same on both sides of the reaction so as to follow the law of conservation of mass. Thus the equation is balanced.

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<span>If thermal energy (heat) must be added to a chemical reaction in order for the reaction to take place, the reaction is endothermic. </span>
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