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Oliga [24]
3 years ago
12

A trophic level is a number that tells you the position an organism occupies in a food chain or food pyramid.

Chemistry
1 answer:
svet-max [94.6K]3 years ago
8 0

Answer:

true

Explanation:

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What is the correct symbol equation for the reactions between propanoic acid + sodium carbonate?
Dvinal [7]

Explanation:

2CH _{3}CH_{3}COOH + Na _{2}CO_{3} → 2CHCHCOONa + 2H ^{ + }  + CO_{3} ^{ 2- }

3 0
3 years ago
Consider the reaction of ethyl acetate with sodium hydroxide: CH3COOC2H5(aq)+NaOH(aq)⇌CH3COONa(aq)+C2H5OH(aq) The reaction is fi
Alexus [3.1K]

Answer: The rate law is rate=k[CH_3COOC_2H_5]^1[NaOH]^1

Explanation:

Rate law says that rate of a reaction is directly proportional to the concentration of the reactants each raised to a stoichiometric coefficient determined experimentally called as order.

For the given reaction:

CH_3COOC_2H_5(aq)+NaOH(aq)\rightleftharpoons CH_3COONa(aq)+C_2H_5OH(aq)

k= rate constant

Rate law: rate=k[CH_3COOC_2H_5]^x[NaOH]^y

For the given rate law:

y =1 =  order with respect to NaOH

n = total order = 2

2= (x+y)

2= (x+1)

x= 1

Thus order with respect to CH_3COOC_2H_5 is 1 and rate law is : rate=k[CH_3COOC_2H_5]^1[NaOH]^1

6 0
3 years ago
Consider the chart describing the element. According to the chart, the element is _______ with an atomic number of ___________
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The answer for the question is Lithium; 3.                                                  

4 0
4 years ago
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What is the concentration of H3O ions in pure water?
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Answer:

The answer is 10-7M

Explanation:

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A change in the state of matter of something is an example of a physical change solid liquid gas and plasma are states of matter
Irina-Kira [14]

Answer:

A. Changing water from liquid to solid is an example of a physical change

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