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Brut [27]
3 years ago
5

Food contains what form of energy? -Nuclear -Gravitational -Radiant -Chemical

Chemistry
1 answer:
Marat540 [252]3 years ago
6 0

Answer:

Chemical energies

Explanation:

We get chemical energy from foods, which we use to run about, and move and talk (kinetic and sound energy). Chemical energies are stored in fuels which we burn to release thermal energy - this is one way of making electricity, see Electricity for more information.

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Ethanoic acid and 1-butanol can react to produce water and a compound classified as an 1) aldehyde 2) amine 3) ester 4) halide
kvv77 [185]

Answer:

3) ester

Explanation:

Esterification is the process in which alkanol and alkanoic acids reacts in the presence of a catalyst and heat. The product is usually an ester(alkanoate) and water.

For the reaction between ethanoic acid and 1-butanol, the product is butylethanoate and water as shown below:

               CH₃COOH + C₄H₈OH → CH₃COOC₄H₈ + H₂O

4 0
3 years ago
Mendeleev arranged the elements by what physical property?
Alja [10]
D.) He arranged elements by Atomic Masses
3 0
4 years ago
Read 2 more answers
Monochloroacetic acid (HC2H2ClO2) is a skin irritant that is used in "chemical peels" intended to remove the top layer of dead s
yaroslaw [1]

<u>Answer:</u> The pH of the solution is 1.703

<u>Explanation:</u>

We are given:

Concentration of monochloroacetic acid = 0.31 M

The chemical equation for the dissociation of monochloroacetic acid follows:

                  HC_2H_2ClO_2\rightleftharpoons H^++C_2H_2ClO_2^-

<u>Initial:</u>               0.31

<u>At eqllm:</u>        0.31-x             x            x

The expression of K_a for above equation follows:

K_a=\frac{[H^+][C_2H_2ClO_2^-}}{[HC_2H_2ClO_2]}

We are given:

K_a=1.35\times 10^{-3}

Putting values in above equation follows:

1.35\times 10^{-3}=\frac{x\times x}{(0.31-x)}\\\\x=-0.021,0.0198

Neglecting the negative value of 'x' because concentration cannot be negative.

To calculate the pH of the solution, we use the equation:

pH=-\log[H^+]

pH=-\log (0.0198)\\\\pH=1.703

Hence, the pH of the solution is 1.703

5 0
4 years ago
Which states of matter only appear in the hydrosphere
Oliga [24]
I would say the answer is liquids
7 0
3 years ago
How many moles of carbon dioxide, CO2, are produced when 4.50 moles of propane, C3H8, react?
Amiraneli [1.4K]

Moles of Carbon dioxide : 13.5

<h3>Further explanation</h3>

Given

4.5 moles propane

Required

moles of Carbon dioxide

Solution

Reaction(Combustion of Propane) :

<em>C₃H₈(g)+5O₂(g)→3CO₂(g)+4H₂O(g)</em>

In a chemical equation, the reaction coefficient shows the mole ratio of the reacting compounds (either in reactants or products)

From the equation, mol ratio of Propane(C₃H₈) : Carbon dioxide(CO₂) : 1 : 3, so mol CO₂ :

= 3/1 x mol Propane

= 3 x 4.5 moles

= 13.5 moles

5 0
3 years ago
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