Is melting ice an endothermic or exothermic? its a big class discussion in chemistry and the teacher won't tell us until the whole class agrees
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Calculate the number of moles of Cu in 2.4x10^21 atoms of Cu
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The order of placement of the elements on the modern Periodic Table is determined by their atomic number (option A)
What is atomic number?
The atomic number of an element is the number of protons in the nucleus of an atom of that element. It is a unique identifier for each element, and it is the primary factor that determines the chemical properties of an element.
The Periodic Table is arranged in horizontal rows, called periods, and vertical columns, called groups. The order of placement of the elements on the modern Periodic Table is determined by their atomic number.
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The order of placement of the elements on the modern Periodic Table is the atomic number. The answer is number 1. The rest of the choices do not answer the question above. Atomic mass gives the number of mass of an atom.
(2) HI
(3) LiH
(4) NH3
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An Arrhenius acid is a proton donor, hence among the following, HI is an Arrhenius acid in aqueous solution.
What is an acid?
Acids are defined as substances which on dissociation yield H+ ions , and these substances are sour in taste. Compounds such as HCl, H₂SO₄ and HNO₃ are acids as they yield H+ ions on dissociation.
According to the number of H+ ions which are generated on dissociation acids are classified as mono-protic , di-protic ,tri-protic and polyprotic acids depending on the number of protons which are liberated on dissociation.
Acids are widely used in industries for production of fertilizers, detergents batteries and dyes.They are used in chemical industries for production of chemical compounds like salts which are produced by neutralization reactions.
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I hope this helps.
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Final answer:
Uranium (U) is found in the f-block of the periodic table, specifically in the actinide series.
Explanation:
Uranium (U) is found in the actinide series, which is located in the f-block of the periodic table. The actinide series consists of elements with atomic numbers from 89 to 103. Uranium is the 92nd element, making it part of this series. The f-block is located below the main body of the periodic table, between groups 3 and 4.
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In order to show other chemists the voltage generated by the reaction, the student would most likely record information in the Standard Reduction Potentials in Aqueous Solution at 25 degrees Celsius. This is a list of ions in the solution at standard temperature and pressure.
being specific being flexible
being authoritative
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Answer:
The correct answer is being authoritative.
Explanation:
Authoritative refers to permission to act without asking permission while being held responsible. While implementation refers to the conclusion of all the work in solving an issue and needs careful consideration to detail. There are three fundamental steps involved, that is, preparing and planning to implement the solution, implementing and observing the activity, and evaluating and studying the success of the action. Thus, in my opinion being authoritative would be a primary concern when implementing a solution.