Answer:
A primary source of energy is a fossil fuel , nuclear fuel , wind or sunlight in an unconverted state . A secondary source of energy is created when a primary source of energy is burned or otherwise converted into a form , like electricity, that can be used for useful work.
Explanation:
Answer: B
Explanation: La respuesta es b porque su electricidad y no es un ácido.
Answer:
H2SO4 + 2NaOH ==> Na2SO4 + 2H2O
Explanation:
Answer:On these combined scales of pH and pH it can be shown that because for water when pH = pH = 7 that pH + pH = 14. This relationship is useful in the inter conversion of values. For example, the pH at a 0.01 M solution of sodium hydroxide is 2, the pH of the same solution must be 14-2 = 12.
Explanation:
Answer:
1. ionic bonds
2. metallic bonds
3. share
4. metal
5. non-metal
6. metals
7. NaCl ( sodium chloride )
8. CO2 ( carbon dioxide )
9. Cu ( copper )
<em>i</em><em> </em><em>hope</em><em> </em><em>it</em><em> </em><em>helped</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em>
