Can someone please help me quick!!!

A student compared some soccer players to the atoms in the liquid state. Which of the following activities were the soccer players most likely performing?

A-Lining up next to each other

B-Huddling around each other for the ball

C-Running randomly in all directions

D-Slowly jumping up and down in their places

Two states of matter are described below.

State A: Cannot be compressed and retains its shape
State B: Highly compressible

Which combination of the state and a substance in that state is correct?

A- State A = air; State B = neon

B-State A = water; State B = number cube

C-State A = water; State B = oxygen

D-State A = piece of metal; State B = air
If a chemical change has taken place, which of these is most likely true?

A-Original substance can be easily recovered.

B-Composition of a substance is the same.

C-A completely new substance is formed.

D-An easily reversible process has taken place.
Over a period of time a student observed a small tadpole changing into a frog. Which of the following explains the physical change that takes place in this growing frog?

A-The frog can change back into a tadpole.

B-The tadpole changes its shape and form.

C-The frog is made up of a different set of elements than the tadpole.

D-Many reactions take place inside the tadpole as it changes into a frog.
Which of these is an example of recombination of atoms to form newer molecules?

A-Molding a wire of gold

B-Hammering a piece of iron

C-Tarnishing of a silver coin

D-Rolling of a sheet of aluminum
Which process changes substances into new substances with new properties?

A-Chemical Change

B-Compressibility

C-Malleability

D-Physical Change
Judy kept 250 grams of juice in the freezer. What is most likely the mass of the frozen juice formed and why?

A-250 g, mass remains same during physical change of freezing

B-500 g, mass of ice is twice the mass of juice

C-250 g, mass is conserved when matter is destroyed to form ice

D-200 g, mass of frozen liquid is less than mass of the original liquid
Anna heated 15 g of Substance A to obtain 5 g of Substance B, 4 g of Substance C, and a certain amount of Substance D. Which statement is correct?

A-The mass of Substance D was 10 g less than the mass of Substance A.

B-The mass of Substance D was 1 g greater than the mass of Substance B.

C-The mass of Substance A was equal to the total mass of Substance C and Substance D.

D-The mass of Substance A was equal to the total mass of Substance B and Substance D.

Question

03-10-2017
Biology

contestada

Can someone please help me quick!!!

A student compared some soccer players to the atoms in the liquid state. Which of the following activities were the soccer players most likely performing?

A-Lining up next to each other

B-Huddling around each other for the ball

C-Running randomly in all directions

D-Slowly jumping up and down in their places

Two states of matter are described below.

State A: Cannot be compressed and retains its shape
State B: Highly compressible

Which combination of the state and a substance in that state is correct?

A- State A = air; State B = neon

B-State A = water; State B = number cube

C-State A = water; State B = oxygen

D-State A = piece of metal; State B = air
If a chemical change has taken place, which of these is most likely true?

A-Original substance can be easily recovered.

B-Composition of a substance is the same.

C-A completely new substance is formed.

D-An easily reversible process has taken place.
Over a period of time a student observed a small tadpole changing into a frog. Which of the following explains the physical change that takes place in this growing frog?

A-The frog can change back into a tadpole.

B-The tadpole changes its shape and form.

C-The frog is made up of a different set of elements than the tadpole.

D-Many reactions take place inside the tadpole as it changes into a frog.
Which of these is an example of recombination of atoms to form newer molecules?

A-Molding a wire of gold

B-Hammering a piece of iron

C-Tarnishing of a silver coin

D-Rolling of a sheet of aluminum
Which process changes substances into new substances with new properties?

A-Chemical Change

B-Compressibility

C-Malleability

D-Physical Change
Judy kept 250 grams of juice in the freezer. What is most likely the mass of the frozen juice formed and why?

A-250 g, mass remains same during physical change of freezing

B-500 g, mass of ice is twice the mass of juice

C-250 g, mass is conserved when matter is destroyed to form ice

D-200 g, mass of frozen liquid is less than mass of the original liquid
Anna heated 15 g of Substance A to obtain 5 g of Substance B, 4 g of Substance C, and a certain amount of Substance D. Which statement is correct?

A-The mass of Substance D was 10 g less than the mass of Substance A.

B-The mass of Substance D was 1 g greater than the mass of Substance B.

C-The mass of Substance A was equal to the total mass of Substance C and Substance D.

D-The mass of Substance A was equal to the total mass of Substance B and Substance D.

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miagwh miagwh · Answer 1 · 2017-10-03T16:28:49+02:00

The first one with the soccer players is D in my opinion because the atoms in liquid move around each but not in a wildly sporadic way. For the second one, I think it's D-State A = piece of metal; State B= air since solids are not compressible and have a fixed shape and gas are highly compressible. I also think the chemical change one is C: an entirely new substance is formed due to the fact that chemical changes are usually irreversible. The tadpole one is B I think, which is the tadpole is changing its shape and form.