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chemistry

13. the periodic table was developed based upon the work of which scientist?
a. dalton
b. newton
c. moseley
d. mendeleev

14. the names of the compounds fes, nacl, naoh, and pb(cn)2
all end in the suffix
a. -ite.
b. -ide.
c. -ic.
d. -ate.

The electron configurations of two different atoms are shown below. each yellow electron has a charge of 1−, and the net charge of each nucleus is shown. these atoms will combine with bond. a. an ionic b. a positive c. a negative d. a covalent plzzz mee with !

The yearly amounts of carbon emissions from cars in belgium are normally distributed with a mean of 13.9 gigagrams per year and a standard deviation of 5.8 gigagrams per year. find the probability that the amount of carbon emissions from cars in belgium for a randomly selected year are between 11.5 gigagrams and 14.0 gigagrams per year. a. 0.340 b. 0.660 c. 0.167 d. 0.397

How many oxygen atoms are there in 3.15 moles of hcl manganese (iv) oxide, mno2