Physical Science

posted by .

During which of the following chemical changes does a precipitate form?
1. vinegar is added to baking powder
2. Lemon Juice is added to milk
3. Lemon juice is added to water
4. A banana ripens

  • Physical Science -

    Austin, please post what you think the answers to your questions are -- and someone will be glad to check them.

  • Physical Science -

    4. a banana ripens

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Science

    I am doing a science project about which juice cleans pennies best. I tried lemon, orange, and apple juice. I did three trials of my experiment. On average, the orange juice cleaned the pennies much better than the lemon or apple juice. …
  2. algebra

    making lemonade requires water and lemon juice in the ratio of 3 cups of water to 2 cups of lemon juice. You need a total of 10 allons for the fair. How many cups of lemon juice do you need?
  3. math

    tom had 7/8 of a cup of lemon juice.after making a pie he had 1/2 cup of lemon juice left.how much lemon juice did he use in the pie?
  4. Math please Hurry !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

    Choose the correct answer. Milo wants to make a mixture that is 50% lemon juice and 50% lime juice. How much 100% lemon juice should he add to a juice that is 20% lemon juice and 80% lime juice to make 4 gallons of the 50% lemon/50% …
  5. chemistry

    I'm trying to find the weight of a lemon. Weight of container= 48 g Container + pure lemon juice = 184 g (100 ml) Pure lemon juice= 184g-48= 136g Does this make sense?
  6. Math

    Shelia uses three times more water than lemon juice. She has 2 gallons of water. How much lemon juice does she need?
  7. math

    Making lemonade mixes 1/3cup of lemon juice with 4/9 cup of water. How much more water than lemon juice was used?
  8. math

    The pH of lemon juice is about 2.2. (a) What is the concentration of hydrogen ions in lemon juice?
  9. Math

    The boys mixed 10 gallons of 20% pure lemon juice mix and 10 gallons of the 70% pure lemon juice mix , because they wanted 20 gallons of lemonade at a 40%lemon juice mixture. They thought that because 40% was almost halfway between …
  10. Physical science

    In a recipe for lemonade it gives the ingredients as 1 cup of water,1.5 tablespoons lemon juice, plus sugar and salt.Not taking into account the sugar and salt, what is the concentration of lemon juice in the mixture as a percentage …

More Similar Questions