science

posted by .

which of the following is a physical change?

Milk becomes sour

An iron nails rusts

All the water in a solution of salt water evaporates leaving a lot of crystals of salt in the bottom of the dish

A wooden log is burned leaving ash in the fireplace

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Chemistry

    How might one separate a mixture of water and salt?
  2. Chemistry

    Is the following a physical or chemical separations: salt water --> water+ sodium chloride Do you change the composition of the water?
  3. physics

    If a bowl of salt water is left in the sun long enough for the water to evaporate a layer of salt crystals will be left in the bottom of the bowl. Salt crystals are more ordered than dissolved ions. a. Is this an increase or decrease …
  4. physics

    If a bowl of salt water is left in the sun long enough for the water to evaporate a layer of salt crystals will be left in the bottom of the bowl. Salt crystals are more ordered than dissolved ions. How does the increase or decrease …
  5. science

    Marianne poured salt crystals into water to form a solution.In the solution, which best decribes the salt.
  6. Science

    David has to dissolve salt crystals in the water. What would be the best thing to do to help the crystals dissolve quickly?
  7. science

    Will you please check a few more? Physical change, chemical change or both kinds of change?
  8. science

    A student adds 3 spoons of salt to 100 ml of water. The solution is clear with nothing on the bottom of the cup. One spoon of the salt has a mass of 5g. What is the mass of the solution?
  9. Material balance

    A dilute salt solution containing 6% salt is fed to an evaporator at rate of 10000 kg/h for a trail run. crystals formed along with the saturated solution adhering with them are sent to a centrifuge for the recovery of the solution. …
  10. science

    this is a follow up question from my last one with the exact question If you dissolve 200 g of salt in 20 l of water, what is the density of that solution of salty water?

More Similar Questions