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
likoan [24]
3 years ago
11

HEELP PLEASE Any change that alters a substance without changing it into another substance is a(n)________change.

Chemistry
1 answer:
Trava [24]3 years ago
8 0
Sounds like a physical change.
You might be interested in
If you perfom 30 joules of work lifting a 20-N box from the floor to a shelf how high is the shelf ​
Ede4ka [16]

Answer: 1.5 m

Explanation: E=mgh=Fh

30 J = 20 N * h

h = 30/20 = 1.5 m

5 0
3 years ago
If gas pressure is held constant and the temperature is decreased, gas volume will _____
saw5 [17]

Answer:

Increase

Explanation:

If temperature is held constant, the equation is reduced to Boyle's law. Therefore, if you decrease the pressure of a fixed amount of gas, its volume will increase.

5 0
4 years ago
A scientist discovers a new type of polymer. What must be true about this polymer?
mixas84 [53]

Answer: Option (D) is the correct answer.

Explanation:

A polymer is a large molecule which contains repeating units.

A polymer forms long chain of atoms which are not necessarily arranged in a ring structure. There are not only double bonds between all the carbon atoms, as there can be single bonds or triple bonds between the atoms of a polymer.

A polymer does not contain many different type of molecules as there are many repeating units and not many molecules in a polymer.

A polymer is made of large molecules with repeating units.

Thus, we can conclude that option (D) is the correct answer.

5 0
4 years ago
What is the number after an elements name, representing the sum of its protons and neutrons
vagabundo [1.1K]
The answer is electrons
6 0
4 years ago
Read 2 more answers
Summarize the trends of the periodic table (atomic radius, ionization energy, electronegativity).
almond37 [142]
Atomic Radius increases from Left to Right and Top to Bottom

Ionization Energy increases from Left to Right and Bottom to Top

Electronegativity increases from Left to Right and Bottom to Top
3 0
3 years ago
Other questions:
  • Help please!!, It is URGENT
    15·2 answers
  • When 0.22 mol of iron are allowed to react with an excess of chlorine gas how many
    12·1 answer
  • Devon noticed that it has rained more this year than it did in each of the previous 10 years. How might this increase in rainfal
    11·1 answer
  • If 135.7 J of heat are added to 54.0 g of water initially at 25.0 °C . What is the final temperature of the water?
    5·1 answer
  • Which one of the following classes of organic compound does not contain the carbonyl (C=O) group?A) aldehydesB) carboxylic acids
    15·1 answer
  • Which transition in the hydrogen atom produces emitted light with the longest wavelength?
    13·1 answer
  • What element has the electron configuration 1522s22p63s23p4?
    9·2 answers
  • What do the results tell you about your hypothesis(es)? How do the data support your claim above?
    7·1 answer
  • Which of the following compounds is composed of Al,Si,O and H
    11·1 answer
  • antimony has two naturally occuring isotopes, sb121sb121 and sb123sb123 . sb121sb121 has an atomic mass of 120.9038 u120.9038 u
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!