1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Arlecino [84]
2 years ago
9

Kernels of corn are heated and become popcorn. Why is this a chemical change?

Chemistry
2 answers:
goldfiish [28.3K]2 years ago
6 0

Answer:

When popcorn is popped, liquid inside the kernel is changed to steam. Pressure from the steam builds up inside the kernel. When the pressure reached a critical stage the kernel pops turning itself inside out. This is a physical change.

Explanation:

Dmitrij [34]2 years ago
6 0
Because it’s not a physical change
You might be interested in
Which of these pumpkins has the most<br> thermal energy? Explain your answer.
VLD [36.1K]

Answer:

big

Explanation:

5 0
2 years ago
In nematode worms, a gene that codes for an ATPase has two alternatives for exon 4 and three alternatives for exon 7. How many d
Artyom0805 [142]

Answer:

6 different forms of the protein could be made.

Explanation:

For the given nematode worm, 6 different forms of the protein could be made. This is because of the alternative splicing that will produce 6 kinds of mRNAs. We have 2 different forms for the exon 4 while we have 3 differen forms for the exon 7. Therefore, we have a total of (2*3) 6 different forms of the protein for the given nematode worm.

4 0
3 years ago
How does a barometer predict the weather?
Lunna [17]

Answer:

<em>Barometers measure this pressure. ... Changes in the atmosphere, including changes in air pressure, affect the weather. Meteorologists use barometers to predict short-term changes in the weather. A rapid drop in atmospheric pressure means that a low-pressure system is arriving.</em>

Explanation:

<h3><em>I </em><em>hope</em><em> this</em><em> helps</em><em>!</em></h3>
6 0
2 years ago
A children's liquid medicine contains 100mg of active ingredient in 5 mL. If a child should receive 200 mg of the active ingredi
GaryK [48]
Answer: 10ml
In this question, you are given the liquid medicine concentration (100mg/5ml) and the doses of the medicine that must be taken(200mg). You are asked how much ml of the drug needed. Then the calculation would be:

Volume of drug needed= doses of the drug / drug concentration
Volume of drug needed= 200mg / (100mg/5ml)= 10ml

8 0
2 years ago
When metals react with acid, bubbles of what gas are produced?​
elena-14-01-66 [18.8K]

Answer:

hydrogen is the answer

5 0
3 years ago
Read 2 more answers
Other questions:
  • Why do all sailors sail at different latitudes when they travel east or west
    12·1 answer
  • What is the electron configuration for Ga
    5·2 answers
  • One mole of N2 gas at STP will occupy what volume?
    11·2 answers
  • You have a 2 Liter solution that contains 1 mole of NaCI. What is the molarity of the solution?
    15·1 answer
  • How many protons , electrons and neutrons does 18F- have
    7·1 answer
  • A bond between H and o
    15·1 answer
  • Give IUPAC name
    5·1 answer
  • If an atom has twelve electrons, how many electrons are in the n=1 energy level? How many electrons are in the n=2 energy level?
    5·1 answer
  • It requires 2,500 joules to raise a certain amount of water (c = 4.186J/g°C) from 20.0°C to 65.0°C.
    12·1 answer
  • Examples of fossil fuels are
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!