Answer:
they are single cells that lack a nucleus and tend to live in extreme conditions.- B.
Hydrophobic mplecules are unable to fissolve in watery solution becuse they dislike water.
Hydro= water
-phobic= fear
Hydrophobic= fear of water, or disliking water
*Think of it like this:
when you mix oil and water, do they mix, or does oil float at the top?
If your reply is "oil float to the top", then you're right. Oil and water DOES NOT mix together. Hope that help!
Probably the CO2 concentration. If the earth gets warmer by rising greenhouse gases (one of which is CO2), the amount of rainfall and precipitation increases. I am not an expert, but that's my first guess.
Answer:
9.07 L
Explanation:
<em>Calculate the volume occupied at s.t.p by 6.89 g of NH₃ gas [H = 1.0, N = 14.0].</em>
Step 1: Given and required data
- Molar mass of NH₃ (M): 17.0 g/mol
Step 2: Calculate the moles (n) of NH₃
We will use the following epxression.
n = m / M
n = 6.89 g / (17.0 g/mol) = 0.405 mol
Step 3: Calculate the volume occupied by 0.405 moles of NH₃ at STP
At STP, 1 mole of NH₃ occupies 22.4 L (assuming ideal behavior).
0.405 mol × 22.4 L/1 mol = 9.07 L
Answer:
Explanation:
During a chemical reaction the total mass of reactant remains constant . In other words , law of conservation of mass is conserved during a chemical reaction .
Experiment 1
total mass before reaction = 1.00g
total mass after reaction = 0.64 + 0.36 = 1.00 g
total mass is conserved .
Experiment 2
total mass before reaction 3.25g
total mass after reaction = 2.08 + 1.17 = 3.25 g
total mass is conserved
