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
Which change is chemical?
~water undergoing electrolysis: liquid water becoming oxygen and hydrogen molecules
Which number remains unchanged during photosynthesis?
~the number of carbon atoms
In a chemical reaction, which aspect of the reactants changes?
~mass
A young snake eats and digests a mouse. The increase in the snake’s mass equals
~the mass of the mouse minus the mass of waste produced by the snake.
Based on the law of conservation of matter, what is the missing coefficient for water?
~6
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 😁🙏🏼
i’m asking for help lol i wouldn’t have came here if i didn’t try lol.
1A
2B
3A
4D
5D
Biology matters conservations matters
1 c
2 a
3 a
4c
5 d
Which change is chemical?
ANSWER - water undergoing electrolysis: liquid water becoming oxygen and hydrogen molecules
Which number remains unchanged during photosynthesis?
ANSWER - the number of carbon atoms
In a chemical reaction, which aspect of the reactants changes?
ANSWER - arrangement of the atoms
A young snake eats and digests a mouse. The increase in the snake’s mass equals?
ANSWER - the mass of the mouse minus the mass of waste produced by the snake
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?
ANSWER - 6
Hopefully this helps you lovely people, take care now~
By the way, frozen water is H2O
Evaporated or evaporating water is H2O too.
1 d 2 c 3 d 4 b 5 6
1A
2D
3C
4D
5C
guys those don't work real one's are
1.B
2.C
3.D
4.D
5.C (6)
for connections, the answers above we're wrong about 1-3!
and isn’t this website for ppl to help with homework 🧐 LMAO
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.
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?
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?