Chemistry, 28.01.2020 03:31, laurabwhiddon
On the basis of electronegativity, which of these pairs of elements is most likely to form polyatomic ions?
question 1 options:
o and p
na and br
cs and cl
ba and o
question 2
which of the following pairs of elements would most likely combine to form a salt?
question 2 options:
na and c
cs and i
i and f
n and f
question 3
which of the following substances best conducts electricity in an aqueous solution?
question 3 options:
co 2
ch 3oh
h 2o
kcl
question 4
which of the following rules would apply to the naming of cacl2?
question 4 options:
metal cation + nonmetal anion(–ide)
metal cation + (roman numeral valence) + nonmetal anion(–ide)
metal + polyatomic anion
polyatomic cation + nonmetal anion(–ide)
question 5
a salt forms in the reaction of aluminum with chlorine. what is the most likely formula unit of this salt?
question 5 options:
alcl
alcl 3
alcl 2
al 3cl
question 6
in a lewis diagram for methane (ch 4), which atom or atoms is inside, or central?
question 6 options:
hydrogen
neither, carbon and hydrogen are both inside
carbon
neither, carbon and hydrogen are both outside
question 7
on the basis of bonding, which of the following is true about sodium chloride when compared to sucrose?
question 7 options:
sodium chloride dissolves in water, but sucrose does not.
sodium chloride has a lower melting point than sucrose.
sodium chloride has a higher boiling point than sucrose.
sodium chloride crystals are softer than sucrose crystals.
question 8
which of the following is true about the compound ammonium phosphate [(nh 4) 3po 4]?
question 8 options:
it is a mixture of two monatomic nitrogen and hydrogen ions and one polyatomic phosphate ion.
it is a salt of three polyatomic ammonium ions and one polyatomic phosphate ion.
it is a mixture of three polyatomic ammonium ions and two polyatomic phosphate ions.
it is a salt of monatomic nitrogen, hydrogen, phosphorus, and oxygen ions.
question 9
which of these pairs of elements is most likely to be part of a polyatomic ion?
question 9 options:
k and f
mg and br
l i and i
s and o
question 10
what is the correct name of the compound mn 3(po 4) 2?
question 10 options:
manganese(ii) phosphate
manganese(iii) phosphate
manganese(i) phosphate
manganese phosphate
Answers: 3
Chemistry, 22.06.2019 14:30, amylumey2005
How can carbon move from "land" to bodies of water? describe the way human impact has lead to increased levels of co2 in the atmosphere.
Answers: 2
Chemistry, 23.06.2019 02:50, igraha17
Dumbledore decides to gives a surprise demonstration. he starts with a hydrate of na2co3 which has a mass of 4.31 g before heating. after he heats it he finds the mass of the anhydrous compound is found to be 3.22 g. he asks everyone in class to determine the integer x in the hydrate: na2co3·xh2o; you should do this also. round your answer to the nearest integ
Answers: 2
Chemistry, 23.06.2019 05:40, shelbylynn1093
Why is it incorrect to balance a chemical equation by changing the subscripts? explain.
Answers: 2
On the basis of electronegativity, which of these pairs of elements is most likely to form polyatomi...
Mathematics, 03.09.2020 01:01
Mathematics, 03.09.2020 01:01
Mathematics, 03.09.2020 01:01
Mathematics, 03.09.2020 01:01
Mathematics, 03.09.2020 01:01
Business, 03.09.2020 01:01