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
lozanna [386]
2 years ago
9

When a 4.2 gram sample of mercury (Il) oxide, HgO is decomposed into its elements by •

Chemistry
1 answer:
Usimov [2.4K]2 years ago
7 0

Hg = (3.2 : 4.2) x 100% = 76.19%

O = (1 : 4.2) x 100% = 23.81%

You might be interested in
Which list includes three forms of energy?
loris [4]
 I think the correct answer from the choices listed above is option 1. The list that includes three forms of energy would be chemical, mechanical and electromagnetic. Pressure and temperature are not energy. Hope this answers the question. Have a nice day.
5 0
3 years ago
Read 2 more answers
g Calculate the [OH-] from the results of your titrations. Explain your calculations2. Calculate the [Ca2+]. Explain your calcul
RideAnS [48]

Answer:

Explanation:

*Since the titration is between the strong acid HCl and the strong base Ca(OH)2, the pH at the equivalent point should be 7. On interpolation, we will obtain that 9.50mL and 9.82 mL of HCl is required to completely neutralized the given Ca(OH)2 solution.

*pH at the equivalence point =7

we know that pH + pOH = 14

Hence pOH= 14-7=7

pOH= -log(OH-)

The concentration of OH-= 10-pH= 1X10-7 M

One reason for the low solubility may be the higher reaction temperature, Another reason is the common ion effect.

3 0
3 years ago
Why is pressure on Jupiter enormous?
Evgen [1.6K]
Deep under Jupiter's<span> clouds is a </span>huge<span> ocean of liquid metallic hydrogen. On Earth, hydrogen is usually gas. But on </span>Jupiter<span>, the </span>pressure<span> is so great inside its atmosphere that the gas becomes liquid. As </span>Jupiter<span> spins, the swirling, liquid metal ocean creates the strongest magnetic field in the solar system.</span>
7 0
3 years ago
What is the answer for chemestry when it says 1.204 times 10^24
Sphinxa [80]

Answer: This is called moles

Explanation:  This is described to be the number of molecules, atoms or ions in a substance :)

6 0
3 years ago
1.) What are the chemical properties of matter?
denis23 [38]

Answer:

Chemical properties are properties that can be measured or observed only when matter undergoes a change to become an entirely different kind of matter. They include reactivity, flammability, and the ability to rust. Reactivity is the ability of matter to react chemically with other substances.

Explanation:

Your cute btw :)

3 0
3 years ago
Other questions:
  • This process of heat transfer by conduction would NOT work __________
    5·2 answers
  • 6.1 Raunak took 5 moles of carbon atoms in a containe má Krish also took 5
    7·1 answer
  • What is different about beaker 4 compared to beaker 1
    11·1 answer
  • When 10 grams of salt dissolve in 25 grams of water, what is the resulting mass of the mixture?
    13·1 answer
  • What is the amount of energy carried by a photon that has a frequency of 3.76 x 1014 Hz?
    7·2 answers
  • Consider 0.022 grams of H2(g) produced by the following chemical reaction, 2 HCl(aq) + Mg(s) → MgCl2(aq) + H2(g) Determine if ea
    13·1 answer
  • Cyclopropane is converted to propene in a first–order process with a rate constant of 5.4 × 10–2 hour–1 . The initial concentrat
    10·1 answer
  • I need help please ASAP
    8·1 answer
  • How many mg is 76.0 kg? Express your answer in scientific notation. Use the ^ symbol before the exponent, eg 1x10^3
    11·1 answer
  • Exactly how many gallons are in a 1 gallon jug of water?.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!