<h2>Answer:</h2>
The correct answer is option B which is the melting points of sample Q and sample R are the same.
<h3>
Explanation:</h3>
- According to the question description, Plastic sample Q melted at 20 mins and sample R melted at 10 minutes while providing the heat double than sample Q.
- Melting point of a substance is the temperature on which the substance changes its phase from solid to liquid.
- This temperature is actually the amount of heat. The melting can be reached a point early by giving large amount of heat.
- Hence the melting points will be same, just time to reach that points will be different according to amount of heat given.
For part A you'd find out 40 percent of 15 so 0.40 x 15. That = 6 since the price was raised you'd do 15 + 6 which is 21.
Carbon is so important because it’s how living things breath
The answer is D. 3,4,5,1,2
When the two atoms are split