Asap this is due tomorrow and i don't get it me with some problems i'll be so .

1.

Independent: the concentration of carbon dioxide

Dependent: the rate of photosynthesis

2.

Independent: the type of alcohol

Dependent: the damage to the membrane

Explanation:

Independent variable - the one thing YOU can change (which in the examples was the carbon dioxide concentration and the type of alcohol)

Dependent variable - what changes because of the independent variable (which in this case was the rate of photosynthesis and the damage to the membrane)

Hope this helped but probably not :)

the grams   of   barium that   are in   2.3 x 10^23   atoms of barium   is   52.4 g (answer c)

    calculation

mass = moles   of ba   x molar   mass of ba

  molar mass of ba from periodic table=   137.3 g/mol

  use the   avogadro's law   constant   to   calculate the moles of barium

  that   is     1 mole =   6.02   x 10^23 atoms

                    ? moles = 2.3 x 10^23   atoms

by cross   multiplication

=(1 mole   x 2.3x 10^23 atoms)   / 6.02   x10^23 atoms)=   0.382   moles

mass   is therefore = 137.3   g/mol x 0.382 mol = 52.4 ( answer c)

explanation:

the ratio of the conjugate base to the acid required to attain the desired ph.