Answers
Answer:
²³⁸₉₂U → ²³⁴₉₀Th + ⁴₂He + Energy
Explanation:
Hello,
When uranium undergoes an alpha decay, it's atomic number is reduced by 2 while it atomic mass is reduced by 4 similar to the elements helium (He) and sometimes alpha decay is represented by a helium atom.
Equation of decay
²³⁸₉₂U → ²³⁴₉₀Th + ⁴₂He + Energy
When uranium undergoes an alpha decay, it loses an alpha particle similar to a helium atom and forms thorium which has an atomic number of 90 and atomic mass of 234 with the release of energy.
Related Questions
What is the molarity of each ion present in aqueous solutions prepared by dissolving 20.00 g of the following compounds in water to make final volumes equal to 4.5 L.a. Cobalt(III) chlorideb. Nickel(III) sulfatec. Sodium permanganated. Iron(II) bromide
Calculate the percent mass per volume, % (m/v), of a dextrose solution containing 7.00 g of dextrose in 2.00×102 mL of solution. Note that mass is not technically the same as weight, but the abbreviation % (w/v) is often used interchangeably with % (m/v).
200.0 grams of an organic compounds known to contain 98.061 grams of carbon, 10.381 grams of hydrogen, 32.956 grams of oxygen and the rest is nitrogen. what is the empirical formula of the compound? what is the molecular formula of the compound if its molar mass is 194.101?
Assuming 54.81 grams of Al are consumed in the presence of excess copper II chloride dihydrate, how many grams of AlCl3 can be produced if the reaction will only produce 66.93 % yield?
Answers
Answer:
Its arrangement.
Explanation:
Hello,
In this case, we rewrite the chemical reaction as:
Now, a more organized dimensional analysis is shown below to determine the very same required value:
Without giving the numerical answer, one sees that the student's dimensional analysis is wrongly written as long as the 3 moles of must be dividing rather than multiplying as it is the relationship factor used to relate it with the
based on the reaction stoichiometry. Moreover, the 6.7moles of
must be multiplying as it is the starting value.
Best regards.
Answer:
The error is in the rule of three.
3 mol of Ba(OH)2 ___ comes from ____ 1 mol Ba3N2
6.7 mol of Ba(OH)2 ___ comes from ___ (6.7 .1) / 3
Explanation:
Ba3N2 + 6H2O → 3Ba(OH)2 + 2NH3
3 mol of Ba(OH)2 x 1 mol of Ba3N2 / 6.7 mol of Ba(OH)2
- The rule of three is wrong.
- The chemical equation is ballanced.
- The question is not clear about which is the limiting reactant. May be we don't have enough water, so that's the limiting and Ba3N2 is in excess. So have to work with H2O.
Answers
The atoms having the same number of protons but a different number of neutrons have been termed isotopes.
The neutrons and protons are the constituents of the nucleus. The number of protons and electrons is equal in the atom. When two different atoms have the same number of protons the species have been termed isotopes. The atomic number of the species differ that resulting in the different positions in the periodic table.
For more information about the atoms, refer to the link:
Electrons and nucleus
Protons and electrons
Electrons and neutrons
Protons and neutrons
Answers
Answer:
Protons and neutrons :)
Answer:
I think that is electrons and nucleus
Explanation:
It makes sense
Answers
Intensive properties are physical properties that do not depend on the amount or size of the material being measured. In other words, they remain constant regardless of the quantity of the substance.
The correct answer is b. magnetism.
Out of the options provided:
a. mass is an extensive property because it depends on the amount of the substance. If you have more of a substance, you will have a greater mass.
b. magnetism is an intensive property because it remains the same regardless of the size or amount of the material with the magnetic property.
c. shape is not a standard property used to classify intensive or extensive properties. It is more of a description of the object's form.
d. volume is an extensive property because it depends on the size and amount of the substance. If you have more of a substance, you will have a larger volume.
Learn more about magnetism from the link given below.
#SPJ6
Answer:
b. Magnetism (sorry im very late)
Explanation:
Intensive properties do not depend on size, no matter what it doesn't. For example, magnetism, density, melting and boiling points, and color. All of those support intensive property.
Answers
B.weathering and deposition
C.weathering and erosion
Answers
Answer:
C. weathering and erosion
Explanation: