Answer:
1) HCOOCH3
2) CH3CH2COOCH3
3) CH3CH2CH2CH(CH3)COOCH3
Explanation:
In the reaction between an alcohol and a carboxylic acid, an ester and water are formed. It is analogous to the inorganic neutralization reaction but this reaction is called esterification in organic chemistry. Esters contain the general formula RCOOR where the RCOO moiety was obtained from the acid and the other R moiety was obtained from the alcohol. The -COOR shows the ester linkage in the molecule. The condensed structural formulas shown in the answer reflects these facts.
As we know that Molarity is given as,
M = moles / V
Solving for V,
V = moles / M ------------------(1)
Also, moles is equal to,
moles = mass / M. mass -------------(2)
puting value of moles from eq. 2 into eq. 1,
V = (mass / M.mass) / M
Putting values,
V = (45 g / 164 g/mol) / 1.3 mol/dm³
V = 0.21 dm³
Answer:
B. mass, volume
Explanation:
Density refers to a physical property that is measured using a ratio of mass divided by volume so that two objects of the same size can still have very different density.
First, we have to balance the equation:
Al + H2SO4 → Al2(SO4)3 + H2
we have the number of Al atoms not equal on both sides so we will put 2 Al instead of Al on the left side of the equation.
2Al + H2SO4 → Al2(SO4)3 + H2
now we have an unequal number of (SO4) group on both sides of the equation so we put 3H2SO4 instead of H2SO4
2Al + 3H2SO4 → Al2(SO4)3 + H2
now, we have to put 3H2 instead of H2 to make the H atoms equals on both sides.
2Al + 3H2SO4 → Al2(SO4)3 + 3H2 this is the final balanced equation.
∴ the coefficient of H2SO4 is 3
Answer:
1. Dependent, carrying capacity
2. Dependent, dinoflaggelates
3. Independent, oil spill
4. Dependent, virus
5. Independent, typhoon
6. Independent, deforestation
7. Dependent, predation
8. Dependent, human exploitation
9. Dependent, virus
10. Independent, oxygen depletion
Explanation:
