Arsenic acid, H3AsO4(aq), is a weak polyprotic acid that is highly toxic. It is
used as a wood preservative, a biocide and a reagent in the synthesis of
some dyes. Arsenic acid reacts with water, as represented by the following
Bronsted-Lowry equations.

A.
H3AsO4(aq) + H2O(1) = H2AsO4(aq) + H3O+(aq)
B.
H2AsO4(aq) + H2O(l) = HASO(aq) + H3O+ (aq)
C.
HASO(aq)+H2O(l) = AsO4-(aq)+H3O+(aq)

Match the following K, values with the above equilibriums.
1. 5.6 x 10-3
2. 4.0 x 10-12
3. 1.7 x 10-7

Which supports the idea that birds and butterflies both have wings but they do not have a common ancestor with wings? a. the wings are analogous structures that evolved differently and do not have a similar internal structure. b. the wings are homologous structures that evolved differently and do not have a similar internal structure. c. wings of birds are vestigial structures, but the wing structures of bats are not vestigial. d. wings of bats are vestigial structures, but the wing structures of birds are not vestigial

26. of of (aq) by (aq) is . if 50.00 ml of 1.05 m is to 25.00 ml of 1.86 m ,at be? ( no is toina of aof) , h.. (p. ). . .

Which element has the lowest electronegativity? calcium(ca) gallium(ga) selenium(se) bromine(br)