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
Arlecino [84]
2 years ago
5

What kind of change is heating of mercuric oxide? ​

Chemistry
2 answers:
mario62 [17]2 years ago
7 0

Answer:

Chemical change.

Explanation:

When it is heated it decomposes into mercury and oxygen gas. The mercury oxide reactant becomes the silver color of mercury. Hence, a color change can be noticed throughout the reaction.

kicyunya [14]2 years ago
4 0

Answer:

chemical change

Explanation:

You might be interested in
Glass door is transparent or opaque?
8090 [49]

<em>Transparent because you can see right through it </em>

5 0
2 years ago
Read 2 more answers
What is the scientific method?
AysviL [449]
C. a plane for forming a scientific hypotheses
3 0
3 years ago
Multiple choice.<br> Please help.
Ludmilka [50]

Answer:

7. B

8. B

9. A

10. A

11. Increases

Again..I hope it helps.✌

7 0
3 years ago
How many moles are in 3.90 x1030 atoms of Zn?
zaharov [31]
Explanation:
The problem basically wants you to find a way to convert between the number of atoms present in the sample and the number of moles they are equivalent to.
To convert between atoms and moles we use something called Avogadro's constant, which basically acts as the definition of a mole.
More specifically, in order to have one mole of an element you need
6.022 x 10^23 atoms of that element. You can thus use this number as a conversion factor to take you from atoms to moles or vice versa.
In your case, you will have


3.90 x 10^ 26 atoms Zn x 1 mole Zn ( Avogrado’s constant) / 6.022 x 10^23 atoms Zn

= 6.5 x 10^8 is the answer
7 0
2 years ago
The reaction of a metal with oxygen to form rust is called
azamat

The reaction of a metal with oxygen to form rust is called as redox reaction.

Explanation:

The process during which the surface of metal reacts with the oxygen ions present in air, it has tendency to get oxidized that is formation of an oxide layer on the surface of the metal. Generally, it occurs when metals like iron comes in contact with moisture or water. So the oxygen in moisture reacts with iron giving its electron and getting oxidized and reducing the surface of metal by forming metal oxide. So the complete process of formation of rust is termed as redox reaction. As here both oxidation and reduction is taking place.

3 0
3 years ago
Other questions:
  • 20 POINTS!!
    8·2 answers
  • 50 Points!! 25 Each Points Please Help ASAP!! View Attached Image!! Will Mark Brainliest If All Are Answered!!
    7·1 answer
  • How many gallons of soft drink are there in a 2.0L bottle
    8·1 answer
  • Use the periodic table to answer the questions which is the correct electron configuration for titanium
    6·1 answer
  • What is the volume of a sample of liquid mercury that has a mass of 53.8 g, given that the density of mercury is 13.6 g/mL? Answ
    12·1 answer
  • What is the velocity of a 500 kilgram elevator that has 4000 joules of energy?
    6·1 answer
  • Fill in the blanks and name the process.
    5·1 answer
  • The most valuable part of the carcass is the
    9·1 answer
  • Binigyan ang isang liham ng pasasalamat at gagawin ko rin siya ng kabutihan sa ibang pagkakataon​
    6·1 answer
  • How many Iron atoms (Fe) are represented in the following formula?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!