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
spin [16.1K]
2 years ago
10

When an element exists in nature by itself, it must have a charge of

Chemistry
1 answer:
Fiesta28 [93]2 years ago
7 0
H2O or water, all humans are mostly mad of water and water covers most of the earth 

You might be interested in
why do you think the experimenter conducted this experiment in a lab rather than in the natural world, where this phenomenon was
taurus [48]

Answer:

The experimenter observed this experiment in a lab rather than natural world because it might be dangerous to the atmosphere if he does the experiment in the natural world and it was still an hypothesis so that's why he did it in the lab.

5 0
3 years ago
What’s the answer to these 3 questions? thanks!
Citrus2011 [14]
Water has h bonding
H-H
Sodium fluoride
I think
4 0
2 years ago
what mass of grams of hydrogen sulfide will be required to participate 15 g of copper sulphide from a copper (ii) traoxosulphate
cestrela7 [59]
Characteristics of a Precipitate:
A precipitate is characterized by the following properties:

Appears as a solid species.
Settled down at the bottom of the reaction pot.
Insoluble in the corresponding solvent.
7 0
2 years ago
at a given tempature gas with a pressure of 150 kpa has volume of 0.8 l if the pressure decreases to 75kpa and the temperature r
vova2212 [387]
  <span>P*V/T=constant 
so P*V= constant*T 
if T doesn't change then 
P*V= constant 
so 150kPa*0.8L=75kPa*xL 
xL=150kPa*0.8L/75kPa=1.6L 
hope it help</span>
8 0
3 years ago
Calculate the concentration of hydronium and hydroxide ions in a 0.050 M solution of nitric acid.
Mazyrski [523]

Answer:

[H₃O⁺] = 0.05 M & [OH⁻] = 2.0 x 10⁻¹³.

Explanation:

  • HNO₃ is completely ionized in water as:

<em>HNO₃ + H₂O → H₃O⁺ + NO₃⁻.</em>

  • The concentration of hydronium ion is equal to the concentration of HNO₃:

[H₃O⁺] = 0.05 M.

∵ [H₃O⁺][OH⁻] = 10⁻¹⁴.

<em>∴ [OH⁻] = 10⁻¹⁴/[H₃O⁺] </em>= 10⁻¹⁴/0.05 = <em>2.0 x 10⁻¹³.</em>

3 0
2 years ago
Other questions:
  • What type of solid is candle wax ? Amorphous or Crystalline?
    10·2 answers
  • What state of matter is achieved if a large amount of energy is added to a gas? vapor liquid plasma solid
    15·2 answers
  • A mineral is a naturally occurring solid with a regular, repeating structure. Please select the best answer from the choices pro
    13·2 answers
  • Given the balanced equation representing a reaction:
    13·2 answers
  • A sample of a substance has a volume of 60.5ml and a density of 1.20g/ml what is density of magneis
    9·1 answer
  • Which type of bonds are formed when calcium atons react with oxygen atoms​
    7·1 answer
  • What is the value for AG at 100 Kif AH = 27 kJ/mol and AS = 0.09 kJ/(mol-K)?
    5·1 answer
  • Describe how a measuring cylinder can be used to measure the volume of gas produced
    11·1 answer
  • Which wave has the longest wavelength ?Shortest?
    10·2 answers
  • A patient is required to take an IV drug for cancer treatment. The required dosage is 5.0 mg drug her lb patient body weight eve
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!