I'm not 100% sure that this is right but I think D. is correct.
Answer:
Table salt (the iodine isn't important) consists of much smaller particles than rock salt and therefore has a much higher ratio of surface area to mass. Since chemical reactions occur at surfaces,the smaller table salt particles will dissolve far more quickly than the larger rock salt.
Explanation:
<span>I think it is the barometer and aneroid barometer</span>
4 because it's electron configuration is 1s2 2s2 2p2 and to have a full outer valence shell you need 2p6 so you only need 4 more electrons to get to 2p6.
Answer:
19.6 g is the mass of methanol
Explanation:
Density of methanol is 0.787 g/mL.
Density means mass / volume
Methanol density = Methanol mass / Methanol volume.
Let's replace in the formula
0.787 g/mL = Methanol mass / 25 mL
0.787 g/mL . 25 mL = Methanol mass → 19.6 g