CHEMISTRY HIGH SCHOOL

A student gains 1.0 lb in two weeks. How many grams did he gain?Express your answer to two significant figures and include the appropriate units.





I don’t know

Answers

Answer 1
Answer:

In 1 lb there are 450 grams (Rounded upto  2 - Significant figures).

We havea weight gain of 1.0 lb.

We have to convert it into grams.

How many grams are there in 1 lb?

I lb = 453.592 grams

According to the question -

A = 1 lb

Converting it into grams, we get -

1 lb = 1 x 453,592 = 453.592 grams

Rounding up to 2 - Significant figures, we get -

1 lb = 450 grams

Hence, in 1 lb there are 450 grams (Rounded upto  2 - Significant figures).

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brainly.com/question/4600100

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Answer 2
Answer: 1lb= 453.592g but then to change to 2 significant figures you go down two of the numbers so here it will be 4 and 5 that stands for 450g. So he gained 450g. I hope that helped

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. What is the density of the metal?

Answers

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Answers

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Required

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