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
fomenos
3 years ago
14

What should go in the blank?

Chemistry
1 answer:
dem82 [27]3 years ago
6 0

Answer:

³⁸₂₀Ca.

Explanation:

³⁸₁₉K –> __ + ⁰₋₁β

Let ʸₓA represent the unknown.

Thus the equation above can be written as:

³⁸₁₉K –> ʸₓA + ⁰₋₁β

Thus, we can obtain the value of y an x as follow:

38 = y + 0

y = 38

19 = x + (–1)

19 = x – 1

Collect like terms

19 + 1 = x

x = 20

Thus,

ʸₓA => ³⁸₂₀A => ³⁸₂₀Ca

Therefore, the equation is:

³⁸₁₉K –> ³⁸₂₀Ca + ⁰₋₁β

You might be interested in
The number of grams present in 1.35 mol of Fe is
BlackZzzverrR [31]
First you need to find the mass of one mole of the element. (say Fe) Find Fe on the periodic table, it should tell you what the average atomic mass is. The average atomic mass = mass of one mole.(in this case it is 55.85g) Take your moles (1.35mol Fe) and multiply it by the mass of one mole (55.85g) 1.35mol*55.85g/mol=75.39g (Just repeat that method for the other problems) use the formula <span><span>moles=<span><span>mass</span><span>Molar mass

</span></span></span></span>
5 0
3 years ago
Ce presiune au 40L gaz la temperatura de 100⁰C, dacă la presiunea de 6 atm și temperatura de 50⁰C volumul ocupat este de 20L.
sammy [17]

Answer:

3,46 atm

Explanation:

Tenemos;

P1 =?

T1 = 100 + 273 = 373 K

V1 = 40 litros

P2 = 6 atmósferas

T2 = 50 + 273 = 323 K

V2 = 20 litros

Desde;

P1V1 / T1 = P2V2 / T2

P1V1T2 = P2V2T1

P1 = P2V2T1 / V1T2

P1 = 6 * 20 * 373/40 * 323

P1 = 44760/12920

P1 = 3,46 atm

5 0
3 years ago
A piece of plastic has a net charge of 2. 00 μc. How many more protons than electrons does this piece of plastic have?
ankoles [38]

The piece of plastic has   1.256× 10¹³  protons  more than  that of electrons.

<h3>What are protons and electrons?</h3>

A proton is a subatomic particle with a defined mass of 1 and a charge of +1 (positive charge). The symbol for the proton is either p or p+.

An electron is a subatomic particle that has a negative electric charge and that actively orbits the nucleus of the atom .

To calculate ,

given ,

magnitude of charge , q=+2μC=+2×10⁻⁶

Since, protons carry positive charge. Then, we know that standard number of proton in 1 Coulomb of charge is,

1C=6.28×10¹⁸ protons

Number of protons in 1 microcoulomb charge is,

=6.28×10¹⁸×10⁻⁶

=6.28×10¹²

Then for the net charge of q, the number of protons is given as,

np= q×6.28×10¹²

np= 2×6.28×10¹²

np=1.256×10¹³ protons

Thus, the piece of plastic has 1.256×10¹³   more protons than electrons.

Lear more about electron and proton ,here:

brainly.com/question/1421805

#SPJ1

5 0
2 years ago
What is a pure substance that contains only one atom called?
xxMikexx [17]
A pure substance with only one atom is a compound
5 0
3 years ago
Read 2 more answers
What is 3 pointing to
8090 [49]

Answer:

Electrons

Explanation:

Electrons is the outside of the nucleus

8 0
2 years ago
Other questions:
  • True or false atoms with fewer then 4 outer elections lend elections?
    8·1 answer
  • A 10-Newton object displaces 12 Newtons of water. Will this object sink of float?
    7·2 answers
  • The reason salt crystals, such as kcl, hold together so well is because the cations are strongly attracted to
    15·2 answers
  • When you balance a chemical reaction, you are making sure that the law of conservation of matter is obeyed?
    7·2 answers
  • Molecular chlorine and molecular fluorine combine to form a gaseous product. Under the same conditions of temperature and pressu
    5·1 answer
  • Which of these elements has an atom with the most stable outer electron configuration? * Cl Ca Ne Na
    6·1 answer
  • Look at this balanced chemical reaction: N2 + 3H2 2NH3
    12·1 answer
  • Which of the following most likely happens when the number of particles of a gas decreases?
    6·1 answer
  • If i run away is that stealing from my parents?
    6·2 answers
  • How many formula units of silver fluoride, AgF, are equal to 42.15 g of this substance?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!