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Finger [1]
3 years ago
14

Why aren't there any plate boundaries in Maryland???

Chemistry
1 answer:
algol [13]3 years ago
3 0
Because their are no plate boundaries near or next to maryland

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The chemist discovers a more efficient catalyst that can produce ethyl butyrate with a 78.0% yield. How many grams would be prod
Vedmedyk [2.9K]

The grams that would be produced  from 7.70 g of butanoic acid and excess ethanol is 7.923grams

calculation

Step 1: write the chemical equation for the reaction

CH3CH2CH2COOH + CH3CH2OH →  CH3CH2CH2COOCH2CH3  +H2O

step 2: find the moles of butanoic acid

moles= mass/ molar mass

=  7.70 g/ 88 g/mol=0.0875 moles

Step 3:  use the mole ratio to determine the moles of ethyl butyrate

moles ratio of CH3CH2CH2COOH :CH3CH2CH2COOCH2CH3  is 1:1 therefore the moles of CH3CH2CH2COOCH2CH3 = 0.0875  x78/100=0.0683moles

step 4: find mass = moles x molar mass

 =  0.0683 moles  x116 g/mol=7.923grams

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3 years ago
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The difference in an area with high concentration and an area with low concentration is called.
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The difference in an area with high concentration and an area with low concentration is called the concentration gradient.

<h3>What is Concentration Gradient ?</h3>

A concentration gradient occurs when the concentration of particles is higher in one area than another.

In passive transport, particles will diffuse down a concentration gradient, from areas of higher concentration to areas of lower concentration, until they are evenly spaced.

This difference in an area with high concentration and an area with low concentration is called the concentration gradient.

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brainly.com/question/24746577

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1 year ago
A teacher attaches two slinky springs to a fixed support. The springs are moved, as shown in the image. Wave A wave B What prope
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a changes more because it going higher

Explanation:

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It’s C

Explanation:

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What did scientists discover when they arranged elements in order of increasing atomic mass?
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