Science =____= ASAP!!!

posted by .

Is Adding Vinegar to Yeast A Physical or a Chemical Change????

  • Science =____= ASAP!!! -

    It's a chemical change, I think.

  • Science =____= ASAP!!! -

    I think?

  • Science =____= ASAP!!! -

    It is difficult to apply 'physical' or 'chemical' change descriptions to biological systems.

    Of the two choices I would agree with Ms. Sue in that a chemical change is the better description. I am not sure the pH you are starting from. The drop in pH may increase (at about pH 4) or slow the cells processes and can be described as a chemical change. If the acid is sufficiently concentrated there may be cell shrinkage, due to loss of water from the cell, which could be described as a physical change.

  • Science =____= ASAP!!! -

    The answer to your question is, Chemical (:

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Chem Lab

    Am I right? Classify the following properties of sodium metal as physical or chemical: •Silver metallic color—physical property •Turns gray in air—physical property •Melts at 98º C-melting point is physical property •Reacts
  2. science

    1. The ability of an apple to change color when exposed to air is a ____. (1 point)physical property chemical property physical change chemical change 2. Which of the following is NOT a possible sign of a physical change?
  3. science

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

    Since fermentation occus in the cytoplasm of yeast cells explain the role of mitochondria in yeast cells?
  5. physical science

    Hypothesize how the pH of white vinegar would change if an ammonia solution was added to it a drop at a time. White vinegar has a pH of 3.1
  6. Science

    What is anything that has mass and takes up space?
  7. science

    What is anything that has mass and takes up space?
  8. Science

    Fat reacting with sodium hydroxide Is this a chemical or physical change My answer is chemical is this right answer Chemical A originally is buoyant in water; after it mixed with HCI, the new substance now sinks in water. My answer …
  9. Physical Science

    Hello! Thanks for checking my question out! ____ 2. Which of the following is NOT a clue that a chemical change has occurred?
  10. Science

    When you measure the boiling point of mercury, you are investigating a ____?

More Similar Questions