Answer:
Above pH 8.3, a blue litmus paper stays blue but turns red in an acid. A neutral solution, or one between the upper and lower values of litmus paper, pH 4.5 and 8.3, will not change the paper's color
Explanation:
Answer:
C. A metal ion takes the place of the hydrogen of an acid
Explanation:
When an acid react with base neutralization reaction take place.
During neutralization reaction water and salt are formed.
For example;
Base sodium hydroxide react with hydrochloric acid and form sodium chloride and water.
The sodium hydroxide consist of sodium metal ion in the form of Na⁺ and OH⁻. when it react with acid hydrogen atom of acid replace by sodium metal and react with anion of acid and form salt called sodium chloride.
Chemical equation:
NaOH + HCl → NaCl + H₂O
<h3>
Answer: 1.6 mol (option 5)</h3>
Explanation:
<u>Mole Ratio of O₂ : NO</u>
Based on the balanced equation, the mole ratio of O₂ : NO is 5 : 4
∴ for every mole of O₂ reacted, ⁴/₅ moles of NO is produced
<u>Moles of NO</u>
since the number of mol of O₂ = 2.0 mol
then moles of NO produced = 2.0 mol × ⁴/₅
= 1.6 mol
∴ the moles of nitrogen monoxide that will form if we start with 2.0 moles of oxygen is 1.6 mol (option 5).
Answer:
1. Unsaturated
2. Alkanes
3. alkynes
4. gasoline and lubricating oils.
5. manufacturing plastic products
