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propane burns in air according to the equationc3h8g 5o2g rarr 3co2gnbsp 4h2ogwhat volume of o2nbspin liters would be
an equal quantity of heat is transferred to 100 g samples of different substances given their specific heat values rank
explain in terms of atomic structure why more energy is required to remove one electron from a fluorine atom than from
how are qualitative cation test applied ti the real
a nicd battery uses nickel and cadmium to produce a potential difference using these equations answer the following
1 for the cellnbspalnbspnbspnbspal3nbsp nbsp cu2nbsp nbsp cucalculate e for the cell where lceilcu2rceil
1 an instant heat pack uses a chemical reaction to produce heatnbsp explain the general chemistry behind the heat
can you explain the second step to third step transition in the citric acid cycle in
zncdhg were placed with alkaline earth metals in mendeleevs table how this confusion is removed in the modern periodic
for properties of amines lab write mechanism of nitrosonium ion no formation from sodium nitrite nano2 and hydrochloric
assume that the hospital uses the direct method for cost allocation furthermore the cost driver for general
show all steps pleaseethanol c2h5oh boils at 78c its density is 0789gml the enthalpy of vaporization is 3856 kjmol the
a common practice in early stages of research is to simulate the conditions of blood using a simple buffered system you
why the elements of group i-a and group ii-a are good metals of the periodic
how lanthanide contraction controls the atomic sizes of elements of 6th and 7th
describe essential features of period 6 of periodic
describe the sequence of adding ingredients to make the recipe for condensed tomatosoup to mix the ingredients you have
in a particular chemical reaction the energy of the reactants is 30 kj and the energy of the products is 5 kj the
does the neutron in deuterium change the chemical reactivity of deuterium in comparison with normal hydrogen why or why
to calculate the air pressure the volume occupied by the air is assumed constant why is this assumption incorrect
the coating on the head of a match is highly flammable when it burns it releases a great deal of energy however before
assume you take a sample of 114 g al and oxidize i in an excess stream of o2 to produce 210g of al2o3 calculate the
which law is supported by each of the following statements the laws are conservation of mass definite proportion and
can someone have a go at doing this so i can compare my method my answer is off by 2ml and i cant work out whyhow much
the half-life of phosphorus-32 is 143 days if you begin with 411 mg of this isotope what mass remains after 422 days