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OCR Salters B AS Chemistry - Elements of Life Questions and Answers 2024 $13.49   Add to cart

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OCR Salters B AS Chemistry - Elements of Life Questions and Answers 2024

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  • Course
  • Semmelweis Entrance
  • Institution
  • Semmelweis Entrance

OCR Salters B AS Chemistry - Elements of Life

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  • August 8, 2024
  • 7
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • Semmelweis Entrance
  • Semmelweis Entrance
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julianah420
OCR Salters B AS Chemistry - Elements
of Life

How do you convert from cubic decimetres to cubic centimetres? - answerMultiply by
1000

What is the flame colour for lithium ions? - answerBright red

What is the flame colour for sodium ions? - answerYellow

What is the flame colour for potassium ions? - answerLilac

What is the flame colour for calcium ions? - answerBrick red

What is the flame colour for barium ions? - answerApple green

What is the flame colour for copper ions? - answerBlue-green

How do you convert from cubic centimetres to cubic decimetres? - answerDivide by
1000

What is the formula for concentration? - answerMoles/Volume

What is the equation for the speed of light? - answerFrequency x wavelength

What is the formula for the number of moles? - answerMass/Molar Mass

What is the formula for percentage yield? - answerExperimental yield/Theoretical yield x
100

What is the name of a molecule with 6 areas of electron density? - answerOctahedral

What is the name of a molecule with 5 areas of electron density? - answerBipyramidal

What is the name of a molecule with 4 areas of electron density? - answerTetrahedral

What is the name of a molecule with 3 areas of electron density? - answerTrigonal
planar

What is the name of a molecule with 2 areas of electron density? - answerLinear

, What is the bond angle of an octahedral molecule? - answer90 degrees

What is the bond angle of a bipyramidal molecule? - answer120 and 90 degrees

What is the bond angle of a tetrahedral molecule? - answer109.5 degrees

What is the bond angle of a trigonal planar molecule? - answer120 degrees

What is the bond angle of a linear molecule? - answer180 degrees

By how many degrees does a lone pair repel other bonds? - answer2.5 degrees

Define the term 'dative covalent bond' - answerA covalent bond where both electrons
have been donated by one atom.

Define the term 'isotope' - answerIsotopes have the same atomic number but different
mass numbers.

What is the maximum number of electrons in the s-sub shell? - answer2

What is the maximum number of electrons in the p-sub shell? - answer6

What is the maximum number of electrons in the d-sub shell? - answer10

What is the maximum number of electrons in the f-sub shell? - answer14

Using Avogadro's constant, what is the formula for number of moles? - answerNumber
of particles/Avogadro's constant

What is the relative mass of a proton? - answer1

What is the relative mass of a neutron? - answer1

What is the relative mass of an electron? - answer1/1836

What is the relative charge of a proton? - answer+1

What is the relative charge of a neutron? - answer0

What is the relative charge of an electron? - answer-1

Why does sodium hydroxide never go in the burette during titrations? - answerIt blocks
the burette

Name 2 indicators that can be used for acid-base titrations - answerMethyl orange and
phenolphthalein

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