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water at 290 degc is sprayed onto 0188 kg of molten gold at 1063 degc its melting pointthe water boils away forming
which of the following is not a proper name for an organic compound because it doesnt identify the longest possible
1a hypothetical neutral atom has 77 electrons one of its electrons is held in circular orbit of radius r 0244 nm by
how much energy in joules is required to change the energy state of the h-atom electron from n2 to n3 from n2 to n4
1 which pair is written with the first member having the higher boiling pointa nh3 ph3b ar i2c n2 nod ch3 c2h6e hcl
a sample of ashed broccoli was dissolved in 2000ml of 2m hcl this solution was found to have a concentration of
1 chlorine reacts with potassium bromide to produce potassium chloride and brominea write a chemical equation using
1which was the most important source of wealth the french developed in their coloniesa goldb horticulturec silverd fur
1 which skill involves creating representations of complex objects or processesa classifyingb predictingc making
1 according to the trend shown by the graph what volume of water would you expect after 35 seconds of drippinga
which of the following describe chemical properties check all that apply- iodine a purple solid becomes a purple gas-
which of these substances are elementsa siliconeb quartzc iodined watere siliconf
which of these mixtures are heterogenous- granite - brass - oil and water - salt and
given that a 0160 m hclaq solution costs 3995 for 500 ml and that kcl costs 10tonwhich analysis procedure is more
1 name the two most important factors that govern the movement of sample components in chromatography2 a in gas
you leave 255 grams of water outside at 210 c in the sun after 300 minutes the temperature is 350 ca how many calories
which of the following is the strongest acid1 hno22 h2co33 hc1o34 h2so35 hfo6
which of the following molecules has a double bond1 no3-2 c2h43 so24 h25 c126 none of the previous
a student pours 200 grams of methanol a flammable substance into the sink another student causes the bad situation to
1 what is an aliquot of a sample2 what is the filtrate in a gravity procedure3 how full the max level should a funnel
how do i calculate the molar mass of the followingna2so410
1 indicate the oxidation number of carbon and sulfur in the following compoundsa co 2c na2co3 4e ch4 -4g so2 4i na2so4
what observation is expected when1 an acid nitric acid hno3 is added to a solution containing carbonate or bicarbonate
the meter has been defined as 165076373 wavelengths of the orange-red line of the emission spectrum of 86kr calculate
the mass of a beaker is 5333g after 500 ml of a concentrated hydrochloric acid solution is pipetted into the beaker the