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
Vsevolod [243]
3 years ago
14

Which one is it answer the question

Chemistry
2 answers:
Luden [163]3 years ago
6 0

Answer:

both are physical change

Explanation:

both are cause by heating

brainliest answer

Assoli18 [71]3 years ago
5 0

Answer:

Both are only physical changes.

Explanation:

Nothing about the objects chemically change, and they remain the same.

Their changes arent due to heating/cooling.

You might be interested in
What does frequency describe? A.distance from crest to crest or from trough to trough on a wave B.Number of waves that pass a gi
Shalnov [3]

Answer:

B.Number of waves that pass a given point in a given time.

3 0
3 years ago
After the reaction between sodium borohydride and the ketone is complete, the reaction mixture is treated with water and H2SO4 t
In-s [12.5K]

Answer:

The hydrogen can be gotten from the added Acid or water during "workup".

Explanation:

Basically we can say that the reaction describe in this question is a Reduction reaction because of the chemical compound called sodium borohydride. In the reaction described above we can see that there is a Reduction of ketone to alcohol by the compound; sodium borohydride.

For the reduction Reaction to occur the C-O bond must break so as to enable the formation of O-H bond and C-H bond.

So, "the reaction mixture is treated with water and H2SO4 to produce the desired alcohol", thus, the oxygen will definitely pick up the hydrogen from H2SO4 or H2O.

7 0
3 years ago
What is the name of the compound made from Sn 4+ and PO4 3-?
givi [52]

Answer:

Sn₃(PO₄)₄ - tin(IV) phosphate.

Explanation:

Hope it helps! :)

8 0
3 years ago
1, 2 and 3 ........
Orlov [11]
2.) Average atomic mass =Σ (abundance x molar mass) /100 = (12.64 x 302.04 + 18.23 x 304.12 + 69.13 x 305.03) /100 =304.486 u(Dalton) . This is avg atomic mass.

8 0
3 years ago
What is wave particle duality​
yKpoI14uk [10]
Wave particle duality is the concept in quantum mechanics that every particle or quantum entity may be described as either a particle or a wave. It expresses the inability of the classical concepts "particle" or "wave" to fully describe the behaviour of quantum-scale objects.
4 0
3 years ago
Other questions:
  • What elements are in table salt
    12·1 answer
  • What elements and atoms are involved in a basketball?
    9·1 answer
  • Determine the empirical formula for c6n4o10
    11·1 answer
  • A 0.180 mole quantity of NiCl 2 is added to a liter of 1.20 M NH 3 solution. What is the concentration of Ni 2 + ions at equilib
    6·1 answer
  • The gas described in parts a and b has a mass of 1.66 g. the sample is most likely which monatomic gas?
    9·2 answers
  • Natural resources like oil and copper metal take a very long time to form. Because of this, they are known as A) fossil fuels. B
    10·2 answers
  • Nitrogen and carbon can form ___ bonds in which six electrons ( three pairs ) are shared.
    9·1 answer
  • Hurry I need the answer asap
    11·1 answer
  • Over time a process of heating, cooling, and pressure will combine the minerals pyrite and talc into a rock. What kind of rock w
    9·1 answer
  • I need help w this..
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!