Answer:
0.02 M
Explanation:
Given data:
Mass of sodium carbonate = 1.8 g
Volume of water = 862 cm³ (862/1000 = 0.862 L)
Concentration = ?
Solution:
Formula:
Concentration = number of moles / volume in L
Number of moles of sodium carbonate:
Number of moles = mass/molar mass
Number of moles = 1.8 g/ 106 g/mol
Number of moles = 0.02 mol
Concentration:
c = 0.02 mol / 0.862 L
c = 0.02 M
Answer:
Remain unchanged.
Explanation:
The total number of moles of liquid remain unchanged as the some moles of species B are added to the system because specie B that is added in the liquid phase is again restored after addition. If the specie B did not restored after addition to the liquid phase so the total number of moles increases in the liquid phase so that's why we can say that the liquid phase remain unchanged.
A food web is graphical representation of what eats what in an ecological community and is formed by the natural interconnection of food chains.
Freshwater mussel are important components of food webs. They are omnivores and they feed upon algae, zooplanktons, bacteria and dissolved organic matter.
- If a virus wiped out the mussel population, the consumer (seagull, octopus, human) may not starve or die as they have other sources of food available. The other food sources available for human is fish, shark and octopus, for seagull is fish and for octopus is limpets. However as the consumer have lost a source of food, the competition for other food sources will increase. Competition occurs in a food web as individuals of different species struggle to obtain the same food.
- The two other consumer of mussels are-human and octopus.
- The population of consumers may not change drastically as other food sources are available.
Learn more about food web-
brainly.com/question/18816028
Answer:
1.01atm
Explanation:
760mmHg = 1atm
765mm Hg = 765/760 = 1.01atm
Therefore, the barometer reading in atmosphere is 1.01atm
Answer:homogeneous mixture
A sandstorm is a homogeneous mixture.
Explanation: