section d- chemistry Flashcards
the reaction between NaOH and HCl is called neutralisation
true
isotope atoms having different atomic number but the same mass number
false
in a covalent bond, atoms donate the outermost electrons to achieve stability
true
a catalyst alters the rate of chemical reactions
true
atoms consist of a positively charged nucleus and a negatively charged electron shell
true
in the reaction,
CO2 + H2O ->…..
the product is carbonic acid
true
hydrogen is an example of a metal
false
the electronic configuration for the six electrons in carbon is 1s2 2s2 2p2
true
the rate constant links the rate of the reaction with the concentrations of the reactants
true
H3O+/ OH- is an example of an acid- base conjugate pair
false
organic chemistry can be defined as the chemistry of carbon containing compounds
true
benzene is an alkene with two or more consecutive double bonds
false
enantiomers are non- superimposable mirror images
true
carbon- carbon bonds are usually strong and covalent
true
C4H8 is the formula for a saturated hydrocarbon
false
alkynes must have at least two carbon atoms
true
oxidation with Fehling’s solution is a qualitative reaction for phenols
false
the addition of bromine to alkenes results in the formation of alkanes because bromine atoms substitute hydrogen atoms
false
one of the halogenation reactions occurs when a halogen, a member of group VIIA, reacts with alkenes
true
Markovnikov’s rule states that with the addition of HX ( halogen halides) to an alkene double bond, the hydrogen goes to the end of the double bond that already had more hydrogen atoms.
true
