Ionic compounds are used in all of the following EXCEPT:O toothpasteO cosmeticsO sports ballsO soap
3 answers
Question:
Ionic compounds are used in all of the following EXCEPT: O toothpaste
O cosmetics
O sports balls
O soap
O cosmetics
O sports balls
O soap
Answers
I think toothpaste
Explanation:
each column of the table is called a group. elements in a group share similar properties. groups are read from top to bottom. metal. metalloid. nonmetal. solid. liquid. gas. fe. hg. o. 2. 3. 4. 5. 6. 7. 8. 9. 2. beryllium. 9.012. 4. sodium. 22.990. 11. 3. magnesium. 24.305. 12. potassium. 39.098. 19. 4. calcium. 40.078. 20. i guess i
[tex]\frac{239}{94}pu+\frac{1}{0}n ====> \frac{y}{z}x+\frac{134}{54}xe+3\frac{1}{0}[/tex]
the catch is that the top numbers are atomic masses the bottom numbers are the numbers of protons and electrons in an uncharged atom. they are the number of that atoms as you would find them on the periodic table. further, the numbers on the left are used to determine the missing numbers on the rightso here we go
atomic mass
239 + 1 = y + 134 + 3 combine like terms
240 = y + 137 subtract 137 from both terms
240 - 137 = y
103 = y
atomic number
94 = z +54 + 0
94 = z + 54 subtract 54 from both sides.
40 = z
answer
[tex]\frac{103}{40}x=\frac{103}{40}zr[/tex]
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