What particle is emitted in alpha radiation
Answers
Answer: The alpha particle is released after alpha radiation.
Explanation:
Alpha decay is defined as the decay process in which a heavier nucleus decays into a lighter nuclei. This decay process releases alpha particle which is also known as helium nucleus.
The general alpha decay reaction is given as:
The particle released will carry a mass of 4 units and carries a charge of +2 units.
Hence, the alpha particle is released after alpha radiation.
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Which of the following processes are exothermic and which are endothermic? a) frost forms on a car window in winter; b) water condenses on a glass of ice water on a humid summer afternoon; c) adding ammonium nitrate to water causes the temperature of the solution to decrease
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A balloon filled with helium rises when youlet it go. A balloon filled with carbon dioxidesinks. Explain the difference.
Answers
The balanced equation is C6H14(g) + 19/2O2(g) → 6CO2(g) + 7H2O(g). If you are given 7.9 moles C6H14, multiply it by a ratio of 19/2/1 to get the moles of oxygen. Then, you will get 75.05 moles of O2.
b. [H+] is equal to [OH−].
c. [H+] is less than [OH−].
d. [H+] is greater than [OH−].
Answers
C. buffering
D. half-reaction
Answers
In the reaction the oxidizing agent is reduced.
the answer is oxidizing look it up
Also i took the test
Answers
All atoms can be identified by the number of protons and neutrons they contain. The number of protons present in the nucleus of an atom of potassium - 42 is 19.
What are protons?
The particles which are smaller in size than an atom are called subatomic particles. An atom contains three sub atomic particles, they are protons, electrons and neutrons. The positively charged particles are called protons whereas the negatively charged particles are electrons.
The neutrons are chargeless particle. Here K - 42 is a radioactive isotope which has the atomic number 19. So the number of protons is 19 and the number of neutrons is:
A = Z + N
N = A - Z
= 42 - 19 = 23
The number of protons or electrons is the atomic number whereas the mass number is the sum of protons and neutrons.
Thus the number of protons is 19 and neutrons is 23.
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Answers
Final answer:
0.500 mole of any gas at standard temperature and pressure (STP) is equivalent to 11.2 liters. This is calculated using Avogadro's Law.
Explanation:
The quantity that represents 0.500 Mole at Standard Temperature and Pressure (STP) refers to the volume of gas. According to Avogadro's law, which states that equal volumes of gases at the same temperature and pressure contain an equal number of molecules, 1 mole of any gas at STP occupies a volume of 22.4 liters. Therefore, 0.500 mole of a gas at STP would occupy a volume of 11.2 liters.
Here's how you calculate this: Use Avogadro's law proportion, which is V1/n1 = V2/n2. Given n1 is 1 mole, V1 is 22.4 liters (which are standard values at STP) and n2 is 0.500 mole (your desired quantity), you can solve for V2 :
V2 = V1 * n2 / n1 = 22.4 L * 0.500 mol / 1 mol = 11.2 L.
So, 0.500 mole of any gas at STP would have a volume of 11.2 liters.
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CH4 + 3O2 yields CO2 + 2H2O
Al4C3 + 3H2O yields CH4 + 4Al(OH)3
Zn + 2HCl yields ZnCl2 + H2