Bitter taste (opposed to sour taste of acids)...
Slimy, or soapy feel on fingers (Slippery).....
Many bases react with acids and precipitate salts......
Strong bases may react violently with acids. An acid spill can be safely neutralised by using a mild base......
Bases turn red litmus paper blue.....
Bases are substances that contain metal oxides or hydroxides........
Bases which are soluble in water form alkalis (soluble bases)......
Answer:
Mole fraction for solute = 0.1, or 10%
Molality = 6.24 mol/kg
Explanation:
22.3% by mass → In 100 g of solution, we have 22.3 g of HCOOH
Mass of solution = 100 g
Mass of solute = 22.3 g
Mass of solvent = 100 g - 22.3g = 77.7 g
Let's convert the mass to moles
22.3 g . 1mol/ 46 g = 0.485 moles
77.7 g. 1mol / 18 g = 4.32 moles
Total moles = 4.32 moles + 0.485 moles = 4.805 moles
Xm for solute = 0.485 / 4.805 = 0.100 → 10%
Molality → mol/ kg → we convert the mass of solvent to kg
77.7 g. 1 kg / 1000g = 0.0777 kg
0.485 mol / 0.0777 kg = 6.24 m
Answer:
This looks like a hard question for me is this biology
Explanation:
<u>Epipelagic </u>zones are warm, well lit, and have lots of marine life.
Explanation:
This is the topmost zone of the oceans extending about 200 meters from the ocean surface. This zone is well lit because sunlight is able to penetrate this layer before it discusses as it penetrates deeper into the ocean. Therefore, this epipelagic zone is able to sustain plankton (that are photosynthetic). Plankton form the base of marine life which is why they support a large marine ecosystem in the epipelagic zone and thie energy flow even to the deeper abyssopelagic zone.
Answer:
MAKE flashcards
Explanation:
Study them then get some one to test you. it works for me
