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
zysi [14]
3 years ago
14

Which is an example of chemical change

Chemistry
1 answer:
Oksanka [162]3 years ago
4 0
Mixing of posted colours
You might be interested in
Massive amounts of energy are contained in an atom's: Select one:
melamori03 [73]
Nucleus.
____________
6 0
4 years ago
How many molecules are present in 2 H₂ SO4​
Delvig [45]

Answer:

1 mol of H2SO4 contains 6.022 x 10^23 molecules. : 0.5 mol of H2SO4 contains 0.5 x 6.022 x 10^23 molecules. = 3.011 x 10^23 molecules . that is 49 g of H2SO4 contains 3.011 x 10^23 molecules of H2SO

Explanation:

3 0
3 years ago
How do u do this. I'm really confused
Kaylis [27]
Are you wanting us to answer all of them I will tell you in the comment box the answer ok
8 0
4 years ago
Atoms are indivisible spheres.
miskamm [114]
Bbhhuuushhshsjdjdjdnjsjs
5 0
3 years ago
Read 2 more answers
The atomic symbol Superscript 206 subscript 82 upper P b. represents lead-206 (Pb-206), an isotope that has 82 protons and 124 n
Serggg [28]

Answer:

\left \{ {{y=206} \atop {x=82}}Pb \right.

Explanation:

isotopes are various forms of same elements with different atomic number but different mass number.

Radioactivity is the emission of rays or particles from an atom to produce a new nuclei. There are various forms of radioactive emissions which are

  • Alpha particle emission  \left \{ {{y=4} \atop {x=2}}He \right.
  • Beta particle emission    \left \{ {{y=0} \atop {x=-1}}e \right.
  • gamma radiation             \left \{ {{y=0} \atop {x=0}}γ \right.

in the problem the product formed after radiation was Pb-206. isotopes of lead include Pb-204, Pb-206, Pb-207, Pb-208. they all have atomic number 82. which means the radiation cannot be ∝ or β since both radiations will alter the atomic number of the parent nucleus.

Only gamma radiation with \left \{ {{y=0} \atop {x=0}}γ \right. will produce a Pb-206 of atomic number 82 and mass number 206 , since gamma ray have 0 mass and has 0 atomic number.equation is shown below

\left \{ {{y=206} \atop {x=82}}Pb\right ⇒ \left \{ {{y=206} \atop {x=82}}Pb\right +  \left \{ {{y=0} \atop {x=0}}γ\right.

Thus the atomic symbol is \left \{ {{y=206} \atop {x=82}}Pb\right

8 0
3 years ago
Read 2 more answers
Other questions:
  • Which kind of pollution effects our stream:point source or non source?
    8·1 answer
  • There are three common functional groups in organic chemistry that are readily ionized by adjusting the ph of the aqueous soluti
    5·1 answer
  • Provide three different examples of how minerals can form on earth
    10·1 answer
  • A litter of pigs is born. Three are female and three are male. Which set of symbols correctly describes the gender of each pigle
    7·2 answers
  • Which action does the executive branch take as part of the government spending process? A.Executive branch agencies meet with Co
    12·2 answers
  • If there is a disturbance to a chemical system at equilibrium, then the<br> ystem will
    10·1 answer
  • If atmospheric pressure measurement for taking at regular intervals from sea level to the stratopause The measurements with most
    10·2 answers
  • What is the new concentration for 25mL added to 135mL of .150M
    9·1 answer
  • A 1.167 grams sample of hydrated Nickel (II) Chloride is heated until a constant mass is achieved. The constant mass of the samp
    5·1 answer
  • What is one way to prevent carbon monoxide poisoning?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!