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
ASHA 777 [7]
4 years ago
15

_____ are isotopes that emit radiation because they have unstable nuclei.

Chemistry
2 answers:
alexandr1967 [171]4 years ago
7 0
The correct answer among the choices given is option B. Radioisotopes are isotopes that emit radiation because they have unstable nuclei. These are radioactive isotopes of an element. They are defined as atoms that contain an unstable combination of neutrons and protons.
Katena32 [7]4 years ago
4 0

Radioisotopes i took the test


You might be interested in
Help me pleaseee i don't get it .
QveST [7]
You’re adding all the atoms together. So for C18H36O2, you would add 18+36+2 to get your product. If there isn’t a number by the element, that means there’s only one atom.
7 0
3 years ago
How many elements make up this compound C7H5(NO2)3
UkoKoshka [18]

Answer:

4 elements for C7H5(NO2)3

4 0
3 years ago
Jacques Charles used this reaction to prepare hydrogen gas for his historic balloon flights: Fe(s) + H2SO4(aq) = FeSO4(aq) + H2(
alekssr [168]

Answer:

Volume = 98.5 L.

Explanation:

Below are attachments containing the solution

4 0
3 years ago
Molecule of water contains hydrogen and oxygen in a 1:8 ratio by mass. This is a statement of __________.A) the law of multiple
fgiga [73]

Answer:

The correct answer is B.

Explanation:

The molecule of water has 2 atoms of hydrogen and 1 atom of oxygen.

The ratio of masses are given as:

2\times 1 g/mol: 1\times 16 g/mol= 1 : 8

This illustrates the law of definite proportions which is also known as law of constant compositions .

The law states that 'the elements combining to form compound always combine in a fixed ratio by their mass.'

Whereas :

Law of multiple proportion states that when two elements combine with each other to form more than one compounds , the mass of one element with respect to the fixed mass of another element are in ratio of small whole numbers.

Law of conservation of mass states that mass can neither be created nor be destroyed but it can only be transformed from one form to another form.

In a balanced chemical reaction ,total mass on the reactant side must be equal to the total mass on the product side.

Law of conservation of energy states that energy can neither be created nor be destroyed but it can only be transformed from one form to another form.

7 0
3 years ago
Mohr's salt is a pale green crystalline solid which is soluble in water. It is a 'double sulfate' which contains two cations, on
Veronika [31]
The gas is NH₃.
H₂ doesn't dissolve readily in water, SO₂ gives an acidic solution in water.

The solid residue is Fe(OH)₂.
FeSO₄ and Na₂SO₄ are soluble in water.

The answer is C.
3 0
3 years ago
Other questions:
  • Which of the following objects has the greatest kinetic energy?
    6·1 answer
  • Solutions of mercury (I) nitrate and potassium bromide are mixed
    5·1 answer
  • In which species does sulfur have the highest oxidation number? s8 (elemental form of sulfur) h2s so2 h2so3 k2so4?
    13·1 answer
  • Select the correct answer. What is the SI unit of time?
    14·2 answers
  • A solid has ___ shape and ___ volume can anyone tell me the answer
    9·2 answers
  • A section of this DNA molecule that codes for a specific inherited trait is called a......
    6·1 answer
  • Ghnsehdtgrjygkuhilh2
    7·1 answer
  • Sinuman sa inyo ay puwedeng tanghaling kampeon.
    5·2 answers
  • Which could cause renewable resources to change from renewable to non- renewable?
    14·1 answer
  • Which wave has more energy, the wave at the transmitter or the wave at the receiver? Explain your answer.
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!