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
Hatshy [7]
3 years ago
12

When an atom of the unstable isotope Na-24 decays, it becomes an atom of Mg-24 because the Na-24 atom spontaneously releases:(1)

an alpha particle (2) a beta particle (3) a neutron(4) a positron
Chemistry
1 answer:
Yanka [14]3 years ago
4 0
When an atom of the unstable isotope Na-24 decays, it becomes an atom of Mg-24 because the Na-24 atom spontaneously releases (2) a<span> beta particle</span>.

You might be interested in
How do I answer and do this
Alecsey [184]

a) When the reaction takes place a yellow precipitate will be formed.

b) The law of conservation of mass is true.

<u>Explanation:</u>

a) When a lead nitrate solution is mixed with a potassium chromate solution, a yellow precipitate containing lead forms according to the equation:

Pb(NO_3)_2 (aq) + K_2CrO_4 (aq) → 2 KNO_3 (aq) + PbCrO_4(s).

b) Law of conservation of mass for the given reaction is true.

From the given table we know the mass of reactants and its products.

Law of conservation of mass is a principle when a reaction takes place in a closed system, the mass of the products and reactants in the system doesn't change.

⇒The sum of the mass of the reactants = The sum of the mass of the products.

The sum of the reactants = 128.71+128.97.

                                          = 257.68 g.

The sum of the products = 154.10+103.58.

                                          = 257.68 g.

Thus law of conservation of mass is true for the above reaction.

3 0
3 years ago
When an acid or vase is added to to water,
velikii [3]

Answer:

yes

Explanation:

3 0
3 years ago
Please help chemistry timed test
lakkis [162]

Answer:

54

Barium atomic number is 56, this means that it has 56 protons in its nucleus and put it as a period 6 element. an uncharged barium atom would have 56 electron also. However as a group 2 element barium easily loses 2 electron to form the +2 cation. the ions has 56-2=54

7 0
3 years ago
Read 2 more answers
Fill in the blanks in the following sentences:
Nezavi [6.7K]

Answer:

a. neutral

b. basic /alkaline

c. acidic

4. 13

4 0
3 years ago
How many atoms are in pb (no3)2
Oduvanchick [21]
In pb (no3)2 there is:

Lead- 1 atom
Oxygen- 6 atoms
Nitrogen- 2

9 atoms in all
4 0
3 years ago
Other questions:
  • What are the two main driving forces of the rock cycle
    9·2 answers
  • What causes a zip line rider movie?
    7·1 answer
  • Explain how a light ray behaves when it strikes a mirror?
    11·2 answers
  • The process of hydrogen bonding involves hydrogen atoms bonding with
    6·1 answer
  • Why does water have a high boiling and a low freezing point?
    5·1 answer
  • 2 Points
    6·2 answers
  • If fluorine 20 undergoes beta decay , what will it become ?
    15·2 answers
  • (HELP) how can you make the metal chair less cold when you sit on it?
    8·1 answer
  • AAAAAAAAAAAAAA MATIAS IS HERERERERE
    8·2 answers
  • What are the noble gases
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!