science

HELP ASAP
1) which change is chemical?
• water undergoing electrolysis
•water freezing
•water evaporating
•water boiling
2)which number remains unchanged during photosynthesis
• The number of glucose molecules
• The number of carbon atoms
• The number of water molecules
• The number of carbon dioxide molecules
3) in a chemical reaction which aspect of the reactants change
•mass
•atoms
•nuclei
•total mass
4) a young snake eats and digest a mouse the increase in the snakes mass equals
•the mass of the mouse
• The Mas of the mouse plus the mass of waste produced by the snake
• The mass of the mouse plus the original mass of the snake
• The mass of the mouse minus the mass of waste produced by the snake
5) Cellular respiration transforms glucose and oxygen into carbon dioxide water and energy
C6H12O6 + 6O2 —> 6CO2 + ?H2O + energy
based on the law of conservation of matter, what is the missing coefficient for water?
•4
•8
•2
•6

  1. 👍
  2. 👎
  3. 👁
  1. We do not do your homework for you. Although it might take more effort to do the work on your own, you will profit more from your effort. We will be happy to evaluate your work though.

    What are your choices?

    1. 👍
    2. 👎
  2. i’m asking for help lol i wouldn’t have came here if i didn’t try lol.

    1. 👍
    2. 👎
  3. But just try. The last one for example only needs the equation balanced. How many Hydrogen atoms on the left? So how many do you need on the right?

    1. 👍
    2. 👎
  4. i didn’t have a panic attack typing this just to get shut down 😋🙏🏼 school is hard enough IM ASKING FOR HELP i’m unmotivated and tired just help lol not trying to fail school 😁🙏🏼

    1. 👍
    2. 👎
  5. and isn’t this website for ppl to help with homework 🧐

    1. 👍
    2. 👎
  6. Yes, you're absolutely right. This IS a HELP site. It is not a DO site. You are asking us to DO all of your work for you. We shall be happy to help you but we don't intend to do all of your work for you. If you wish to pursue this, tell us what you don't understand about a problem, what you think the answer is (and don't guess) and why, and show any calculations you've done trying to solve the problem. For example,for the first one, why don't you look up the definition of a chemical change and a physical change. I'll bet you could answer the question if you knew the definition. Good luck.

    1. 👍
    2. 👎
    👤
    DrBob222
  7. By the way, frozen water is H2O
    Evaporated or evaporating water is H2O too.

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. Science

    1) Which of the following is a chemical change? (1 point) Boiling of water Melting a cube of ice Dissolving 10 grams of salt in water Splitting water into hydrogen and oxygen*** 2) What is the mass of water that results from

  2. Science Help PLEASE!!

    1. What happens to the levels of surface water and groundwater during a drought? Surface water and groundwater levels increase during drought. Surface water and groundwater levels decrease during drought. There is no change in the

  3. SCIENCE --- CHECK MY WORK PLS

    help pls, check my work asap!?? 1) Which of the following is a chemical change? (1 point) Boiling of water*** Melting a cube of ice Dissolving 10 grams of salt in water Splitting water into hydrogen and oxygen 2) What is the mass

  4. Chemistry

    Which argument supports the claim that dissolving solid calcium chloride (CaCl2) in water is a chemical change? A. The ionic bond between the calcium ions and chloride ions is broken. B. The solid calcium chloride can be recovered

  1. Science

    Drag each statement to the correct category to show whether it impacts the quality or quantity of water. Statements may be used once or not at all. a. Water is withdrawn from low-supply areas. - Quantity of water or quality of

  2. Science Help PLEASE!! FAST

    1. What happens to the levels of surface water and groundwater during a drought? Surface water and groundwater levels increase during drought. Surface water and groundwater levels decrease during drought. There is no change in the

  3. someones GOTTA help me with this science...!!!

    1. Which of the following describes the correct sequence of events during the water cycle? (1 point)precipitation ¨ condensation ¨ evaporation ¨ runoff condensation ¨ precipitation ¨ runoff ¨ evaporation runoff

  4. Social Studies 2

    How is acting like water an example of following the teachings of Daoism? A. because although water is clear, it can be colored different colors B. because over time, water is stronger than rock C. because water is found all over

  1. science --- check my answers!

    help pls asap!!!!! check my answers!!! 4.) A certain object has a volume of 25.0 mL and a mass of 100g. What is the density of the object? a)0.250 g/mL b) 4.00/mL*** c)125 g/mL d) 2500 g/mL 5.)Which of the following is a chemical

  2. Science check my answers

    Which of the following is not needed to make a model of the water cycle? an energy source water a closed container a drain Which of the following explains why water is a limited resource? Water is present on Earth in a fixed

  3. The Water Cycle Quick Check Answers!

    Here are the answers for The Water Cycle Quick Check. I can assure you that these answers are correct. Keep in mind that sometimes, the orders of the questions change. An X will be by the correct answer each question! Which term

  4. science

    Which change is chemical? water boiling water undergoing electrolysis*** water freezing water evaporating Which number remains unchanged during photosynthesis? the number of carbon atoms*** the number of water molecules the number

You can view more similar questions or ask a new question.