Cotton is opaque. Opaque objects do not let light pass through. You can't see through the objects that are opaque.
It’s either a or b, but I’m not sure which one it really is, but I hoped I helped a little /:).
Single Replacement and Double Replacement reactions
Answer:1.2M
Explanation:
Molarity=number of moles ➗ volume in liters
Molarity=1.8 ➗ 1.5
Molarity=1.2M
I believe the correct answers from the choices listed above is option B and D. The type of substances that would classify salt water would be homogeneous mixture and a solution. Salt water has uniform properties all through out. Hope this answers the question.