Answer:
B. Solution
Explanation:
According to the question statement, Susan wrote in her notebook that it was a blue liquid. Therefore, from a chemistry point of view, it was a solution and not a heterogeneous mixture. Then, the solvent was evaporated after leaving the solution for 72 hours at the windowsill. The solute (blue color most likely) however was not able to evaporate with solvent and left behind.
Example: if you leave the KMnO4+water solution for a few days, water will evaporate thus leaving behind purple crystals of KMnO4.
Ratio of osmosis is calculated via equation rate = (change in mass)/(time), which means that
Ratio of osmosis in cucumber is: (12-14 g) / 5 min (300 s)= -0.006 g/s
Percentage change in mass would be= (14 – 12) ÷ 12 × 100 = 2 ÷ 12 × 100 = +17%
The three stages of volcanic activity are active, dormant, and extinct.
Answer:
What does not have matter?
1) light
2) heat
3) sound
4) energy
*Note: Air dose have matter because if you blow air into a balloon it gets bigger
Explanation:
Plants will lean toward sunlight
<span>fish will swim in an opposite direction if a leaf from a tree falls on the top of a calm pond </span>
<span>some animals will develop thicker fur coats because of climate </span>
<span>turtles poke their heads into their shell when they hear a noise or are frightened </span>
<span>a community may move to a different area where theres more food and water cause a stream dried up </span>
<span>man .. this list can go forever .. </span>
<span>you might want to try limiting the scope </span>
<span>try looking up 1. Charles Darwin and evolution 2. natural selection, sexual selection & gene flow 3. response to stimuli / ecosystems. large topic. GOOD LUCK!</span>