<u>Answer:</u> The correct answer is Option B.
<u>Explanation:</u>
Chemical reactivity is defined as the tendency of an element to loose of gain electrons.
Non-metals are the elements which gains electrons and hence, their chemical reactivity will be the tendency to loose electrons.
Their chemical reactivity increases as we move from left to right in a period because the valence shell come closer to nucleus as we move from left to right. So, addition of new electron in the valence shell becomes easier due to greater attraction between nucleus and valence electron.
For the given options:
<u>Option A:</u> Silicon
This element lies in Group 14 and Period 3.
<u>Option B:</u> Chlorine
This element lies in Group 17 and Period 3.
<u>Option C:</u> Sulfur
This element lies in Group 16 and Period 3.
<u>Option D:</u> Phosphorus
This element lies in Group 15 and Period 3.
Hence, chlorine will readily accept electrons due to its position in the periodic table.
In order to calculate how much heat is needed to raise the temperature you need to use the formula q =mass x specific heat x (final temperature- initial temperature) where q represents heat being absorbed or released. Before you begin you would convert kg to g because the specific heat is measure in g. So you would set up the equation as q = 358 g x .092 x (60-23 degrees Celsius) which would give you 1218.6
Answer:
the rock has a greater amount of heat energy which transfers to water causing vaporization.
<span>48.4%
For this problem, you don't even need to look up the atomic weights. Just simply determine how many percent of 7.28 is 3.52? So do the division.
3.52 / 7.28 = 0.483516484 = 48.3516484%
And of course, round the result to 3 significant figures since that's how many significant figures we have in our data, so we get 48.4%</span>