The general equation is
<span> 2AsF3 + 3CCl4 -----------> 2AsCl3 + 3CCl2F2
2mol </span><span> 3mol</span><span>
n mol ------------------------------------------------> ?
n (</span>AsF3) =m/M= 1.13mol
so, n/2 = x/3 implies x = 3<span>n/2 = 3*1.13 / 2= 1.69 mol it is near 1.7
the answer is </span><span>e]1.705 mol</span>
Answer:
The nucleus emits particles and/or energy
Explanation:
In nuclear decay, the nucleus of an unstable atom (usually with a high neutron number over protons) splits into lighter more stable atoms. The process involves the release of energy particles such as neutrons or beta particles and energy. The released particles bombard with the other unstable atoms in the vicinity and split them producing a chain reaction.
The empirical formula, <span>C<span>H2</span></span>, has a relative molecular mass of
<span>1×<span>(12.01)</span>+2×<span>(1.01)</span>=14.04</span>
This means that the empirical formula must be multiplied by a factor to bring up its molecular weight to 70. This factor can be calculated as the ratio of the relative masses of the molecular and empirical formulas
<span><span>7014.04</span>=4.98≈5</span>
Remember that subscripts in molecular formulas must be in whole numbers, hence the rounding-off. Finally, the molecular formula is
<span><span>C<span>1×5</span></span><span>H<span>2×5</span></span>=<span>C5</span><span>H<span>10</span></span></span>
Answer:
B
Explanation:
b/c air is not seen by eye
Classical conditioning
Explanation:
Its a type of associative learning based on the association between a neutral stimulus with another that is significant for a person or an animal in order to generate a similar response.
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