3 years ago

Describe the way the moon moves in space?

1 answer:

4 0

Gravitational Pull, is the answer. just like we orbit the sun, the moon orbits us. we act almost like a magnet, we follow the biggest guy as leader. if the sun dissapeared, we would die, but probably, we would start to revolve around jupiter as it is the biggest

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Why must contact lenses be removed before you enter a chemistry laboratory?

RUDIKE [14]

The vapors of some chemicals used in the chemistry laboratory, especially isocyanates, can react and bond the contact lens to the eye.

(FYI - the family of isocyanates include Superglue..I wouldn't want to have been the person who discovered this unfortunate reaction!)

6 0

3 years ago

A chemical reaction can theoretically produce 137.5 grams of product, but in actuality 112.9 grams are

Butoxors [25]

<h3>Answer:</h3>

82.11%

<h3>Explanation:</h3>

We are given;

Theoretical mass of the product is 137.5 g
Actual mass of the product is 112.9 g

We are supposed to calculate the percentage yield

We need to know how percentage yield is calculated;
To calculate the percentage yield we get the ratio of the actual mass to theoretical mass and express it as a percentage.

Thus;

% yield = (Actual mass ÷ Experimental mass) × 100%

= (112.9 g ÷ 137.5 g) × 100%

= 82.11%

Therefore, the percentage yield of the product is 82.11 %

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3 years ago

Identify the type of error in the following scenario. SCENARIO: A group is trying to find the volume of a given liquid. To do th

7nadin3 [17]

Answer:

Error of parallax it usually occurs when the cylinder is above or below the eye level,and thus resulting in differences In reading the millimeters

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