If 3.5 g of NaCl is added to 100 mL of water to form a salt solution, what is the solute? 1.water
2.salt solution
3.NaCl
4. all of the above
Its Pre ap Chem

Thats pretty easyIts C.

Explanation:

Look at it like this, so 3.5g of NaCI is added to 100 mL of water right? So then you know that solvent is the substance that the solute was dissolved in. So now what does solute mean and what is the solute?

Solute: In such a mixture, a solute is a substance dissolved in another substance, known as a solvent.

In this case, the solute is the salt because it was being dissolved in the water.

Hope this helps!

l dont know l am s sorry

answer: semi-infinite solid initially at a uniform temperature of 400 ◦c is cooled at its surface by convection. the cooling fluid at a constant temperature of 200 ◦c has a convective coefficient (ha) of 250 w/m2.k. the physical properties of the solid: k = 20 w/m.k and α = 4 * 10-5  m2/s. using δx = 0.04 m and δt = 10 s. write the finite difference equations describing the transient heat transfer of the first five δx and the temperature profile after 30 s.