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
Andre45 [30]
3 years ago
7

What is an example of an irreversible physical change?

Chemistry
1 answer:
frosja888 [35]3 years ago
3 0

The answer is B. making sawdust.

Because, to make sawdust you have to shred wood and you can't reverse that. Therefore, making sawdust is irreversible.

You might be interested in
How many hydrogen atoms are in 4.40 mol of ammonium sulfide
katrin2010 [14]
 The number  of hydrogen  atoms  that are  in 4.40  mol  of ammonium sulfide is  2.12 x10^25  atoms

      calculation
 find the number of moles  of Hydrogen  in ammonium sulfide  (NH4)2S

that is  4.40  x  number of hydrogen atoms in (NH4)2S ( 4x2= 8  atoms)

moles is  therefore=  4.40  x8= 35.2  moles

by  use of  Avogadro's law  constant

that is  1mole =  6.02 x10^23 atoms
         35.2  moles=?

by  cross multiplication
  {35.2 moles x 6.02 x10^23} /1 mole  = 2.12  x10^25  atoms
5 0
3 years ago
Read 2 more answers
Some people say that only gay and bisexual men are likely to be infected with hub true false
shusha [124]

Answer:

They do have a larger chance, but others might be infected too.

PLS GIVE BRAINLIEST

3 0
3 years ago
Read 2 more answers
Consider the following system at equilibrium:
alexgriva [62]

Answer:

A - Increase (R), Decrease (P), Decrease(q), Triple both (Q) and (R)

B - Increase(P), Increase(q), Decrease (R)

C - Triple (P) and reduce (q) to one third

Explanation:

<em>According to Le Chatelier principle, when a system is in equilibrium and one of the constraints that affect the rate of reaction is applied, the equilibrium will shift so as to annul the effects of the constraint.</em>

P and Q are reactants, an increase in either or both without an equally measurable increase in R (a product) will shift the equilibrium to the right. Also, any decrease in R without a corresponding decrease in either or both of P and Q will shift the equilibrium to the right. Hence, Increase(P), Increase(q), and Decrease (R) will shift the equilibrium to the right.

In the same vein, any increase in R without a corresponding increase in P and Q will shift the equilibrium to the left. The same goes for any decrease in either or both of P and Q without a counter-decrease in R will shift the equilibrium to the left. Hence, Increase (R), Decrease (P), Decrease(q), and Triple both (Q) and (R) will shift the equilibrium to the left.

Any increase or decrease in P with a commensurable decrease or increase in Q (or vice versa) with R remaining constant will create no shift in the equilibrium. Hence, Triple (P) and reduce (q) to one third will create no shift in the equilibrium.

6 0
3 years ago
What is the balanced equation for CaCO3(s) &gt; CaO(s) + CO2(g
vlada-n [284]
Balanced equation :

1 CaCO3(s) = 1 CaO(s) + 1 CO2(g)

hope this helps!

3 0
3 years ago
Who started the website "pintrest"
Mice21 [21]
Ben Silberman was the creator of Pinterest
8 0
3 years ago
Read 2 more answers
Other questions:
  • How to learn stoichiometry
    15·1 answer
  • 2. Is it true thatOnly the stratosphere contains enough air for living things to breathe?
    6·1 answer
  • Relative dating will tell you exactly how old a rock layer is.<br> True<br> False
    7·1 answer
  • How many elements occur naturally?<br> ОА. 6<br> ОВ. 25<br> Ос. 90<br> OD. 118
    13·2 answers
  • Agitation causes the dissolving rate of most solutes to:
    5·1 answer
  • Am i correct?????????????????????????????
    15·2 answers
  • ❗️❗️please if you can help me with this let me know. i have 10 pages of multiple choice chemistry questions and i can mark brain
    13·1 answer
  • Can someone please help me i need help asap please
    5·1 answer
  • Identify the charge on the atom or ion that has one proton, zero neutrons, and zero electrons.
    10·1 answer
  • What do blizzards consist of? (Select all that apply)
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!