Answer:
13) between the nucleus, there is a proton and electron number given, (looking at the periodic table, it gives you the name of the element)
14) an ion, in any element has a POSITIVE charge no matter what.. the numbers depend on what it element the ion is with..
Answer:
Color change, Temprature change, Odor change, Effervescence (Bubbles)
Explanation:
1) Silicon dioxide formula: SiO2 ....... 2 is a subscript for the O atom
2) From the formula you have 1 molecula of SiO2 contains 1 atom of SiO2
3) Then, 0.100 mol of SiO2 contains 0.1 mol of Si
4) Multiply by Avogadro's number: 0.100mol * 6.022*10^23 atoms/mol= 6.02*10^22 atoms
Answer: 6.02*10^22 atoms
D. Air molecules touch the warm ground, heating them up
The answer from this questions is the letter
B. He should not use his opinions as evidence.
