3 years ago

When was the first published textbook containing a table identifying the first 33 elements

1 answer:

5 0

1789 -- raité élémentaire de chimie is a textbook written by Antoine Lavoisier published in 1789 and translated into English by Robert Kerr in 1790 under the title Elements of Chemistry

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You estimate that you sent 135 texts last week but when you get the bill, it was actually 175. Calculate the percent error

FinnZ [79.3K]

Answer: -40

Explanation: Percent error is calculated by subtracting the value you actually recieved from the literature value (175 in your case) SO your answer should be 135-175=-40.

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3 years ago

Which of the following represents a decomposition reaction? A. AC + B → AB + C B. A + B + C → ABC C. ABC → A + B + C D. AB + CD

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Answer:

Explanation:ABC is being broken down into A, B, C

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3 years ago

The scientific notation 2 x 10-2 has what value? 0.02 0.002 0.2 0.0002

Marta_Voda [28]

Since the exponent is negative, you move the decimal (2.0) to the left two spots leaving you with .02

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Calculate the mass of grams of 14.79ml of a substance. It'd density is 1.193gml

Alisiya [41]

D=m/v

Given:
d=1.193g/ml
v= 14.79ml

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m=dv
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What would happen if a cell membrane let too much water into a cell?

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Answer:

Animal Cell

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When too much water moves out of a plant cell the cell contents shrink. This pulls the cell membrane away from the cell wall. A plasmolyzed cell is unlikely to survive.

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