Marketa bought 2.7 pounds of walnuts for $25.54. Approximately. pounds of walnuts can Marketa purchase for $1 is 0.11 pounds.
the given data as follows :
Marketa bought = 2.7 pound of walnuts
cost for the 2.7 pound of walnuts = $25.54
walnut Marketa can purchase for $ 1 = ?
$25.54 = 2.7 pound of walnuts
for $ 1 = 2.7 / 25.54 = 0.11 pounds of walnuts
therefore , Marketa can purchase 0.11 pound of walnuts for $1
Thus, Marketa bought 2.7 pounds of walnuts for $25.54. Approximately. pounds of walnuts can Marketa purchase for $1 is 0.11 pounds.
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The BrO2- ion has one more oxygen (a very electronegative element) than does BrO-, hence BrO2- is more electronegative. This weakens the H-O bond which makes it easier for the H to come off as H+ (i.e. act as an acid). HBrO2 is shown below.
<span>O=Br-O-H </span>
<span>By the same argument, HBrO4 is a stronger acid than HBrO3 which is a stronger acid than HBrO2.</span>
<span>Chemical formulas are written from the most metllic
for example group Alkali Metals are the most metallic, so they will be written first.</span>
Answer:
1.350996E23 or 1.350996*10^23 atoms
Explanation:
to find the total number of atoms we need to find the number of moles present in 45grams of mercury and since the molar mass of mercury is given as 200.59 grams . we can calculate :
number of moles=mass/molar mass
=45g/200.59 g
=0.224338
to find the amount of atoms , we multiply the number of moles with the Avogadro's number
=0.224338*6.02214076*10^23
=1.350996*10^23 atoms