Question

In: Chemistry

Question 4 Which of the following is a base ? A. HCl B. H2CO3 C. Ca(OH)2...

Question 4

Which of the following is a base ?

A.
HCl

B.
H2CO3

C.
Ca(OH)2

D.
None of the above.

Question 5

A sample of Neon gas of mass 0.0615 moles occupies a volume of 0.639 L at 27oC and 1.00 atm pressure . Calculate the value of a gas constant, R.

A.
0.385 atm. L / mol. K

B.
0.0346 atm. L / mol.K

C.
346 atm . L / mol. K

D.
none of the above.

Question 7

How many significant figures are in the number 0.003405 ?

A.
7

B.
6

C.
5

D.
4

Question 11

Which of the following is an ester functional group ?

A.
CH3- CH2-O-CH2-CH3

B.
CH3- CH2-COO-CH2-CH3

C.
CH3- CH2-CO-NH2

D.
CH3- CH2-COOH

Question 6

The following reaction is an example of ____________________:

HNO3(aq) + H2O(l) -----> H3O+(aq) + NO3−(aq)

A.
non electrolyte

B.
weak electropyte

C.
strong electrolyte

D.
None of the above.

Question 3

Which of the following is/are ionic compound ?

A.
Fe2O3

B.
NaCl

C.
A and B

D.
N2O5

Expert Solution

queen_honey_blossom answered 2 years ago

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