Concerning the disposal of materials at the end of the experiment, which methods are safe? check all that apply.
1. dump the acids and bases down the drain so they can be combined with sewer water.
2. dispose of ph paper in the trash.
3. dump the cabbage indicator solution down the drain.
4. ask your teacher to neutralize the acids and bases before disposal.
2, 3, 4.

mention the spill to the teacher clean the area and throw the broken pieces away

explanation:

може ли да зареждате повече информация, моля

here is table 2-2:

country

percent of eligible voters that voted

rank

united states

44.9%

138

canada

60.1%

107

costa rica

84.6%

14

hungary

66.9%

82

japan

57.0%

118

egypt

27.7%

159

south africa

85.5%

10

ans is no, the data set cannot be plotted as a single circle graph