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
Phantasy [73]
3 years ago
12

Explain the most important difference between a physical and chemical change.

Chemistry
2 answers:
timama [110]3 years ago
7 0
You can see a physical change always but not always a chemical
Semmy [17]3 years ago
6 0

Answer:

answer below... hope this helps

Explanation:

When a substance undergoes a <u>physical change</u>, its composition remains the same despite its molecules being rearranged. When a substance undergoes a <u>chemical change</u>, its molecular composition is changed entirely. ... Some examples of physical change are freezing of water, melting of wax, boiling of water, etc.

Burning of paper and log of wood, Digestion of food, Boiling an egg, Chemical battery usage, Electroplating a metal, Baking a cake, Milk going sour is a chemical change

You might be interested in
What reacts in a chemical reaction to form a new substance with different products
lorasvet [3.4K]

Answer:

Atoms

Explanation:

5 0
3 years ago
Read 2 more answers
To calculate the freezing point depression ___ solution's freezing point and the freezing point of it's pure solvent.
murzikaleks [220]
I'm sure that to calculate the freezing point depression <span>subtract</span> solution's freezing point and the freezing point of it's pure solvent. According to the formula.
8 0
3 years ago
An alkyne with the molecular formula C5H8 was reduced with H2 and Lindlar's catalyst. Hydroboration-oxidation of the resulting a
irinina [24]

Since the addition of the H2O in the last step of hydroboration is anti-Markovnikov, the starting material is 1-pentyne.

The addition of H2 to C5H8 yields an alkene when a Lindlar catalyst is used. Recall that the Lindlar catalysts poisons the process so that the addition do not go on to produce an alkane.

When hydroboration is carried out on the alkene, we are told that a primary alcohol was obtained. We must note that in the last step of hydroboration, water is added in an anti- Markovnikov manner to yield the primary alcohol. Hence, the starting material must be 1-pentyne as shown in the image attached.

Learn more: brainly.com/question/2510654

6 0
3 years ago
Which element is malleable and conducts electricity?(1) iron (3) sulfur(2) iodine (4) phosphorus
kondaur [170]
The element iron is malleable and conducts electricity.

Answer: (1) iron
4 0
3 years ago
Read 2 more answers
Are Atoms that have no specific arrangement are still considered solid matter.
Karo-lina-s [1.5K]

Answer:

In the same way that a large solid holds its shape, the atoms inside of a solid are not allowed to move around too much. Atoms and molecules in liquids and gases are bouncing and floating around, free to move where they want. The molecules in a solid are stuck in a specific structure or arrangement of atoms.

Explanation:

I googled it :/

3 0
3 years ago
Other questions:
  • Which of these statements best explains why the ocean currents in the Northern hemisphere tend to move in the clock-wise directi
    11·1 answer
  • How are the valence electrons organized to form a bond between the atoms
    14·1 answer
  • I need a tutor. Anyone who could be my tutor please message me. I am in 6th grade and rarely have trouble but when I do I would
    12·2 answers
  • How many protons,neutrons and electrons are present in an atom of hafnium,hf,with a mass number of 178?
    9·2 answers
  • Help
    13·1 answer
  • Place the following elements in order of increasing electronegativity. Ba O Li Place the following elements in order of increasi
    14·1 answer
  • Which type of bonds are formed when calcium atons react with oxygen atoms​
    7·1 answer
  • Suppose three neutrons are released when an atom in a sample of fissionable nuclei undergoes fission. Each of these neutrons has
    10·1 answer
  • The law of physics which states that energy can't be created or destroyed but can transfer or change forms is known as
    13·2 answers
  • a chemical engineer has determined by measurements that there are moles of carbon in a sample of nickel tetracarbonyl. how many
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!