When baking soda and vinegar are mixed together bubbles form and the vinegar and baking soda are changed into new chemicals. Thi s is an example of - A. a physical change. B. a chemical change. C. both a physical and chemical change. D. neither a physical nor a chemical change.
1 answer:
Answer:
A. Chemical change
Explanation:
When vinegar and baking soda are first mixed together, hydrogen ions in the vinegar react with the sodium and bicarbonate ions in the baking soda. The result of this initial reaction is two new chemicals: carbonic acid and sodium acetate.
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Answer:
c. The forces acting on the box are balanced.
Answer:
<h2>2940 J</h2>
Explanation:
The work done by an object can be found by using the formula
workdone = force × distance
From the question we have
workdone = 245 × 12
We have the final answer as
<h3>2940 J</h3>
Hope this helps you
Answer:
D
Explanation:
P=Work/Time
The rate at which work is done matches that.
The answer would most likely be A since obviously gravity weighs things down which helps the every other masses stay settled in place
