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
Marina CMI [18]
3 years ago
12

What is the difference between a physical and chemical change? From what I know a chemical change modifies the atoms of an objec

t while a physical change modifies the molecules right?
Chemistry
1 answer:
blsea [12.9K]3 years ago
6 0
Physical change: a change in which no new substances are formed. the form of the substance is changed but not it's chemical composition (ice melting, bread toasting)

chemical change: any change that results in the formation of new chemical substances. this type of change modifies molecules and atoms by making and breaking the bonds between atoms! (iron rusting, gas burning)

so basically a physical change just changes the appearance of a substance, but a chemical change changes the makeup on a molecular level. i hope this helps you out!
You might be interested in
1. EXPLAIN the steps required to find the molar mass of NH3 . Also,
Natasha_Volkova [10]

Answer: Molar mass of NH_3 is 17.03 g

Explanation:

Molar mass is defined as the mass in grams of 1 mole of a substance.

S.I Unit of Molar mass is gram per mole and it is represented as g/mol.

It is found by adding the atomic masses of all the elements present.

Atomic Mass of Nitrogen (N) = 14.007 g

Atomic Mass of Hydrogen (H) = 1.008 g

Molar mass of NH_3 = 1(14.007)+3(1.008) g = 17.03 g

7 0
3 years ago
2AgNO3 (aq) + BaCl2 (aq)<br> --&gt;<br> 2AgCl (s) + Ba(NO3)2 (aq)
dimaraw [331]

2AgCl (s) + Ba(NO3)2 (aq)

6 0
3 years ago
Mrs. Nogaki tested four black markers in rubbing alcohol and in water. Each filter paper had four evenly spaced dots. She found
ExtremeBDS [4]

Answer:

Lost pigment of marker when dipped in alcohol

Explanation:

dependent viable = output

so it's the output of what happens after the input.

  • she put the marker in the water which is the independent variable, that's the input
  • the output or the result of that decision is having lost pigment in the marker

8 0
3 years ago
Ok here is the next one <br> I’m counting on you <br> Thanks.
kodGreya [7K]

food moves through the mouth by muscle movement

7 0
3 years ago
Calculate the mass of 1.33 mol of copper (II) sulphate
nikklg [1K]

Answer:

a) 13g

Explanation:

5 0
3 years ago
Other questions:
  • Which monosaccharide commonly found in all disaccharides?
    12·2 answers
  • 17. An industrially important element contains
    9·1 answer
  • A gas sample of argon, maintained at constant temperature, occupies a volume of 500. l at 4.00 atm. what is the new volume if th
    12·2 answers
  • What are many earthquakes intended to do?
    10·2 answers
  • Bases in solution produce what type of ions?
    6·1 answer
  • What role does weathering have in shaping Earth’s surface?
    8·2 answers
  • Helppp plzzz will give brainlist
    15·1 answer
  • Mention at least two organic compounds synthesized from inorganic substanc​
    12·2 answers
  • Please help urgent Balance the following word equation:
    14·1 answer
  • Investigations were carried out in a science lab to explore the topic of chemical and physical changes.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!