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  2. Mole (unit) - Wikipedia

    en.wikipedia.org/wiki/Mole_(unit)

    The mole is widely used in chemistry as a convenient way to express amounts of reactants and amounts of products of chemical reactions. For example, the chemical equation 2 H 2 + O 2 → 2 H 2 O can be interpreted to mean that for each 2 mol molecular hydrogen (H 2 ) and 1 mol molecular oxygen (O 2 ) that react, 2 mol of water (H 2 O) form.

  3. GCE Ordinary Level - Wikipedia

    en.wikipedia.org/wiki/GCE_Ordinary_Level

    Both Pearson Edexcel and CAIE offer International GCSE qualifications. O-Level qualification has become a replacement for the matriculation qualification (SSC) offered by the Government boards of education. However, due to the high costs associated with IGCSE qualifications, their reach is limited to middle to elite class families.

  4. Science education in England - Wikipedia

    en.wikipedia.org/wiki/Science_education_in_England

    [31] [36] In Edexcel's combined science specification document the curriculum is delivered in the three traditional disciplines of biology, chemistry and physics, but in Eduqas's , the science curriculum is divided into four parts: Concepts in Biology, Concepts in Chemistry, Concepts in Physics and Applications in Science. The Eduqas combined ...

  5. Latin letters used in mathematics, science, and engineering

    en.wikipedia.org/wiki/Latin_letters_used_in...

    the unit ampere for electric current in physics [4] the area of a figure [5] the mass number or nucleon number of an element in chemistry [6] the Helmholtz free energy of a closed thermodynamic system of constant pressure and temperature [7] a vector potential, in electromagnetics it can refer to the magnetic vector potential [8]

  6. Oxford, Cambridge and RSA Examinations - Wikipedia

    en.wikipedia.org/wiki/Oxford,_Cambridge_and_RSA...

    Edexcel, another British exam board, also had similarly low grade boundaries. Subsequently, Ofqual said that they were confident the grade boundaries this year were "sound", so shifted their focus onto the previous year's grade boundaries for the new Mathematics A-Level for the 2,000 students who sat it after studying it for one year.

  7. Physical chemistry - Wikipedia

    en.wikipedia.org/wiki/Physical_chemistry

    Physical chemistry is the study of macroscopic and microscopic phenomena in chemical systems in terms of the principles, practices, and concepts of physics such as motion, energy, force, time, thermodynamics, quantum chemistry, statistical mechanics, analytical dynamics and chemical equilibria.

  8. Controversial proposal could move some Air National Guard ...

    www.aol.com/news/controversial-proposal-could...

    That solution would take current Air National Guard units — nine of them, in six different states — and move them to the U.S. Space Force. The proposal is not without controversy.

  9. Degrees of freedom (physics and chemistry) - Wikipedia

    en.wikipedia.org/wiki/Degrees_of_freedom_(physics...

    In physics and chemistry, a degree of freedom is an independent physical parameter in the chosen parameterization of a physical system.More formally, given a parameterization of a physical system, the number of degrees of freedom is the smallest number of parameters whose values need to be known in order to always be possible to determine the values of all parameters in the chosen ...

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