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25 gExplanation:Think about what a nuclear half-liferepresents, i.e. the time needed for an initial sample of a radioactive substance to be halved.
A normal periodic table does not list isotopes, but elements, almost all of which occur in more than one isotope, and there is probably at least one radioactive isotope for every element. Instead of the periodic table, a table of nuclides is needed to answer this question.
Adding or removing energy in the form of heat is needed to cause a substance to undergo a phase change. This extra energy helps break the intermolecular forces holding the particles together in their current phase, allowing them to rearrange into a new phase with different properties.
The energy needed to change a substance from a liquid to a gas is called heat of vaporization.
A substance that lowers the energy needed to start a chemical reaction is a catalyst.
Oxygen is typically needed for a substance to burn. It combines with the fuel to undergo a chemical reaction that produces heat and light.
25 gExplanation:Think about what a nuclear half-liferepresents, i.e. the time needed for an initial sample of a radioactive substance to be halved.
The city decided the downtown skating rink needed to undergo a complete renovation. The word undergo is a verb that means withstand, go through, or be subjected to.
CO2 and water is needed. Oxygen and glucose are produced
A normal periodic table does not list isotopes, but elements, almost all of which occur in more than one isotope, and there is probably at least one radioactive isotope for every element. Instead of the periodic table, a table of nuclides is needed to answer this question.
Adding or removing energy in the form of heat is needed to cause a substance to undergo a phase change. This extra energy helps break the intermolecular forces holding the particles together in their current phase, allowing them to rearrange into a new phase with different properties.
Nuclear materials refer to substances that can undergo nuclear reactions, such as uranium and plutonium. These materials are used in nuclear power plants to generate electricity or in nuclear weapons for military purposes. Special precautions are needed in handling and storing nuclear materials due to their radioactive properties.
A substance that lowers the energy needed to start a chemical reaction is a catalyst.
The energy needed to change a substance from a liquid to a gas is called heat of vaporization.
They needed to be baptized.
hydrochloric acid
Oxygen