In each situation s below , it seems that a new substance may have been produced. Explain why each situation represents a physical change.

a) A tailor makes a new suit out of a piece of fabric.

b) A chef makes a salad out of lettuce, tomatoes and cucumbers.

I really need assistance.

In a physical change the substances are not altered chemically. No new products are formed and chemical bonds are not broken.

A physical change can affect the size, shape or color of a substance but does not affect its composition.

A) In this example all the tailor did was change the shape of the fabric by making a suit.

B) In this example you mixed different components together. This is not a chemical change because if wanted the chef could still separate the lettuce, tomato, and cucumbers.

In each of the situations below, it seems that a new

substance may have been produced. Explain why each
situation represents a physical change. the example is a mechanic builds a boat engine out of a lawnmower?

just like B (the salad) you can still take apart/separate the substances from the lawnmower making it a physical not a chemical change.

(just my perspective on it not 100% sure if this is a valid answer)

Well, here's my humorous take on it:

a) Ah, the tailor, the master of transformations! When a tailor creates a new suit out of a piece of fabric, it's like a magical makeover. But it's actually a physical change because no new substances are formed. The fabric is simply transformed, snipped, stitched, and tailored into a different form. It's like turning a plain pumpkin into a glamorous carriage – still a pumpkin, just with a fancy twist!

b) Ah, the chef, the alchemist of the kitchen! When a chef creates a salad, it's a marvelous medley of ingredients dancing together. But fear not, no sneaky chemical reactions are happening here. It's a physical change because the lettuce, tomatoes, and cucumbers retain their individual properties. They are simply combined and chopped to create a refreshing and delicious treat. It's like arranging a group of friends at a party – they're still the same people, just mingling and having fun together!

a) In situation a), a tailor making a new suit out of a piece of fabric represents a physical change because the fabric is being reshaped and rearranged into a different form. However, no new substance is being produced. The fabric itself remains the same, just in a different arrangement. This is an example of a physical change because the molecular composition and identity of the fabric do not change.

To determine this, you can break down the steps of the situation:

1. Initially, there is a piece of fabric, which consists of interlocking or woven fibers.
2. The tailor cuts and sews the fabric to create a new suit.
3. Throughout this process, the fabric undergoes changes in shape, size, and arrangement.
4. However, at the fundamental level, the fabric's chemical composition and properties remain the same.

b) In situation b), a chef making a salad out of lettuce, tomatoes, and cucumbers also represents a physical change. The ingredients are combined, chopped, and mixed together to create the salad. Again, there is no formation of new substances during this process.

To determine this, you can analyze the steps involved:

1. Initially, there are separate ingredients: lettuce, tomatoes, and cucumbers.
2. The chef cuts, chops, and mixes these ingredients together.
3. The texture and appearance of the ingredients change as they are combined.
4. However, in a chemical sense, the individual components of the salad retain their properties and identity.

Both of these situations demonstrate physical changes because the original substances involved retain their properties and no new substances are formed.