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
frez [133]
1 year ago
8

Two molecules of mercury oxide decompose into 2 molecules of mercury and 1 molecule of oxygen gas. Which of the following

Chemistry
2 answers:
Sergeu [11.5K]1 year ago
8 0

Answer:

<u>D</u>

Explanation:

Mercury is Hg.  Most of these reaction do not involve Hg.  Only D correctly shows a balanced equation with mercury (Hg).

(A) Pro(s)-> Pr(s) + O(g)                                  

(B) Mc₂O(s)-> 2 Mc(s) + O(g)

(C) 2 MnO(s)-> 2 Mn(s) + 20(g)

(D) 2 HgO(s)-> 2 Hg(1) + O₂(8)

juin [17]1 year ago
3 0
The answer is B bdvausr
You might be interested in
PLEASE HELP!!!!
shtirl [24]
1) d

2) b because the independent variable is the thing you change/control in an experiment

3) c because the dependent variable is the thing being measured in an experiment

4)hmm it might be d, as c and a are both correct as different sized feeders would make it an unfair test and different types of food would as well

5) c

6) a

7) b obviously because if he activated them at different times then the ones activated last would have an advantage

6 0
3 years ago
HELP. Answer as much as possible. Thnx.​
blondinia [14]

Answer:4

Explanation:

6 0
3 years ago
How to do 22.4 kg/L to kg/mL
emmainna [20.7K]
1 kg/L ----------- 0.001 kg/mL
22.4 kg/L ------- ??

22.4 x 0.001 / 1 => 0.0224 kg/mL
6 0
3 years ago
What is the result of multiplying (2.5 × 1010) × (2.0 × 10-7)?
Travka [436]
That would be A.

2.5*2*10^(10-7)=5*10^3
7 0
3 years ago
Read 2 more answers
If we wish to prepare 250. mL of 0.200 M BaCl2 solution, how much solid BaCl2 is needed?
n200080 [17]

Answer:

10.4g

Explanation are in the Picture

8 0
3 years ago
Other questions:
  • Cindy runs 2 kilometers every morning. She takes 2 minutes for the first 250 meters, 4 minutes for the next 1,000 meters, 1 minu
    14·2 answers
  • Fill in the blanks to determine the number of protons and electrons in an oxygen ion. (Consult the periodic table to determine t
    8·2 answers
  • You've made the hypothesis that the higher the density of a rock, the higher the temperature at which will melt, because a dense
    9·2 answers
  • What does the word giraffe comes from
    8·1 answer
  • An aqueous soulution contains 30% C3H7OH and 70% water by mass. what are the mole fractions of each substance in the solution?
    13·1 answer
  • Calculate the mass of 29.8 mL of aluminum, which has a density of 2.00 g/mL.
    7·1 answer
  • This beaker contains an aqueous solution of copper II nitrate.
    15·1 answer
  • A generator is not required to generate electrical energy when which of the following energy sources is used?
    14·2 answers
  • I’ll give the brainliest
    8·1 answer
  • The diagram shows an electric motor.
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!