Choose the most alkaline substance in the group.
2 answers:
Answer:
The correct answer is option D.
Explanation:
The pH of the solution is defined as negative logarithm of hydrogen ion concentration in the aqueous solution.
- Higher the value of hydrogen ion concentration lower will be the value of pH and more acidic will be the solution.
- Lower the value of hydrogen ion concentration higher will be the value of pH and more alkaline will be the solution.
The most alkaline substance will have higher value of pH.
So, from the given option mil magnesia has highest value of pH with 10.5 which makes is most alkaline from the other given options.
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Answer:
Speed
Explanation:
Aliyah must have been trying to find her speed.
The speed is a measure of how fast an object or a body is and it is calculated by finding the ratio of distance with time. Mathematically,
speed = with a unit of m/s.
<em>Hence, with the distance measured on the ground and Aliyah trying to find the time it will take her to cover the distance while running, she must have been trying to find how fast she can run, that is, speed. </em>