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
Talja [164]
3 years ago
11

Helium decays to form lithium. Which equation correctly describes this decay? Superscript 6 Subscript 2 Baseline Upper H e right

arrow Superscript 3 Subscript 3 Baseline Upper L i + Superscript 0 Subscript negative 1 Baseline e Superscript 6 Subscript 2 Baseline Upper H e right arrow Superscript 6 Subscript 3 Baseline Upper H + Superscript 0 Subscript negative 1 Baseline e Superscript 6 Subscript 2 Baseline Upper H e right arrow Superscript 6 Subscript 3 Baseline Upper L i + Superscript 0 Subscript negative 1 Baseline e Superscript 6 Subscript 2 Baseline Upper H e right arrow Superscript 6 Subscript 3 Baseline Upper L i + Superscript 0 Subscript 1 Baseline e
Chemistry
2 answers:
Virty [35]3 years ago
4 0

Answer:

Superscript 6 Subscript 2 Baseline Upper H e right arrow Superscript 6 Subscript 3 Baseline Upper L i + Superscript 0 Subscript negative 1 Baseline e

Explanation:

Helium decays by beta emission, in beta emission, the mass number of the parent and daughter nuclei are the same but the atomic number of the daughter nucleus increases by one hence it is found one place to the right of its parent in the periodic table.

Having said this, the decay of Helium to lithium may be written as follows;

6/2He -> 6/3Li + 0/-1e

nirvana33 [79]3 years ago
4 0

Answer:

C

Explanation:

Edge 2020

You might be interested in
If a gas’s [kelvin] temperature doubles and it’s volume then remains the same, then what happens to it’s pressure?
Tamiku [17]

Answer:

The final pressure will double i.e it will be twice the initial pressure

Explanation:

T1 = T

T2 = 2T ( twice the original T)

P1 = P

P2 =?

Since the volume is constant,

P1/ T1 = P2 /T2

P/ T = P2 / 2T

Cross multiply

T x P2 = 2T x P

Divide both side by T

P2 = (2T x P) / T

P2 = 2P

Therefore, the final pressure will double i.e it will be twice the initial pressure

5 0
4 years ago
Which of the fallowing scientific claims about the bond in the molecular compound HF is most likely to be true?
DENIUS [597]

The bond is highly polar is the scientific claim about the bond in the molecular compound HF is most likely to be true.

The term polar means that there is separation of charges, the bonds will be the more polar the greater the difference in electronegativity between the bonded atoms.

  • In hydrogen fluoride, for example, F is more electronegative than H because its nucleus, with 9 positive charges, attracts e-shares with H more strongly than the nucleus of H, with only one positive charge.

  • Therefore, the e- shared by covalence will be closer to F than to H and the molecule forms a permanent dipole.

Therefore, we can conclude that the bond is highly polar is the scientific claim about the bond in the molecular compound HF is most likely to be true.

Learn more here: brainly.com/question/6205088

6 0
3 years ago
1.2 What type of bonding occurs when hydrogen form a diatomic molecule?​
Irina-Kira [14]

Answer:

I think it is covalent bonding...

Explanation:

The bonding is covalent in homonuclear diatomic molecules. Each atom in the molecule has the same electronegativity, which means electrons are shared equally between the two. The electronegativity of the atoms in heteronuclear diatomic molecules varies, and these molecules have polar covalent bonds. A dipole is formed when a molecule interacts with another molecule. (i think it's covalent bonding but i might be wrong)

hope this helps...

8 0
3 years ago
Read 2 more answers
A 20.38 gram sample of cobalt is heated in the presence of excess sulfur. A metal sulfide is formed with a mass of 31.47 g. Dete
Viefleur [7K]

Answer: The empirical formula of the metal sulfide is CoBr_{2}.

Explanation:

Given: Mass of metal = 20.38 g

Mass of metal sulfide = 31.47 g

Moles is the mass of a substance divided by its molar mass.

So, moles of cobalt (molar mass = 59 g/mol) are as follows.

Moles = \frac{mass}{molarmass}\\= \frac{20.38 g}{59 g/mol}\\= 0.345 mol

Moles of bromine (molar mass = 80 g/mol) are as follows.

Moles = \frac{(31.47 - 20.38) g}{80 g/mol}\\= \frac{11.09 g}{80 g/mol}\\= 0.138 mol

Now, the ratio of number of moles of cobalt and number of moles of bromine are as follows.

Moles of Co : Moles of Br = 1 : 2

Hence, the empirical formula is CoBr_{2}.

Thus, we can conclude that the empirical formula of the metal sulfide is CoBr_{2}.

6 0
3 years ago
Gaseous butane CH3CH22CH3 reacts with gaseous oxygen gas O2 to produce gaseous carbon dioxide CO2 and gaseous water H2O. What is
SOVA2 [1]

Answer:

10.56 g

Explanation:

C4H10(g) + 13/2O2 (g) -------> 4CO2(g) + 5H2O(l)

Number of moles of butane = 3.49g/ 58 g/mol = 0.06 moles

1 mole butane yields 4 moles of CO2

0.06 moles of butane = 0.06 × 4/1 = 0.24 moles of CO2

Number of moles of oxygen = 17.1g/32g/mol = 0.53 moles of oxygen

6.5 moles of oxygen yields 4 moles of CO2

0.53 moles of oxygen yields 0.53 × 4/6.5 =0.33 moles of CO2

Butane is the limiting reactant

Theoretical yield of CO2 = 0.24 moles × 44g/mol = 10.56 g

3 0
3 years ago
Other questions:
  • you are heating a solution and recording its temperature every 2 min during an experiment. which is your independent variable an
    12·1 answer
  • The melting and boiling points of quartz are very high because of the compound’s ____________________.
    14·1 answer
  • What is the total number of atoms in l.0 mole of CO?
    8·1 answer
  • How do evaporation and condensation relate to heat
    9·2 answers
  • What volume of a 0.100 M AgNO3 solution is required to completely react with the CaCl, in 3.00 L of a
    8·1 answer
  • Help? how can i do this?​
    6·1 answer
  • How can a sample of uranium-235 that has critical mass be induced to react? it must be spilt with a laser. it must be fused to a
    15·2 answers
  • What is the difference between sucrose? Table sugar? And Artificial Sweeteners?
    5·1 answer
  • Which abiotic factor would allow an ecosystem to support a relatively large amount of biotic factors?
    10·1 answer
  • Water particles are composed of Helium and Nitrogen
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!