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3 years ago

PLZ HELP IT BEING TIMED!!!!!! PLZ ANSWER!!!!!

Chemistry

1 answer:

Wittaler [7]3 years ago

6 0

Answer:

YIKES. a bit late. Answers include 1, 2, 3

Explanation:

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Step2247 [10]

A) Combustion
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8 0

4 years ago

Read 2 more answers

Counting atoms pls someone help me

MrRissso [65]

2 atoms of Al
3 of S
4*3=12 of O
so total= 17

7 0

3 years ago

There are four cis,trans isomers for 2-isopropyl-5-methylcyclohexanol, where the cis,trans designations of the substituents are

andreev551 [17]

The image is attached with the answer.

<h3>What are Isomers ?</h3>

Isomers are compounds which have same empirical formula , same number of atoms are present but they have difference in arrangement if the atoms.

It is given that

There are four cis, trans isomers for 2-isopropyl-5-methylcyclohexanol

the cis, trans designations of the substituents are made relative to the oh group

The image is attached with this answer.

To know more about Isomers

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#SPJ1

5 0

2 years ago

A hot metal is placed in 100.0 g sample of water and it causes the temperature of the water to increase from 25 C to 27 C. How m

Arisa [49]

Answer: $836.8\ J$

Explanation:

Given

Mass of water in the sample is $m=100\ g$

Temperature changes from $25^{\circ}C$ to $27^{\circ}C$

Change in temperature is $\Delta T=27-25=2^{\circ}C\ \text{or}\ 2\ K$

We know, specific heat of water is $c=4.184\ J/g-K$

Heat absorbed is given by

$\Rightarrow Q=mc\Delta T\\\Rightarrow Q=100\times 4.184\times 2\\\Rightarrow Q=836.8\ J$

Thus, water absorbs $836.8\ J$ of heat from hot plate.

5 0

3 years ago

Isopentyl acetate is the molecule largely responsible for the aroma and taste of bananas. It is made up of carbon, hydrogen, and

k0ka [10]

Answer:

Explanation:

7.706 g of CO₂ will contain 12 x 7.706 / 44 g of C

= 2.1 g of C .

This will be contained in 3.256 g of isopentyl acetate

3.156 g of H₂O will contain 2 x 3.156 / 18 g of H

= .351 g of H

This will be contained in 3.256 g of isopentyl acetate

Rest will be oxygen

amount of oxygen in 3.256 g of isopentyl acetate

= 3.256 - ( 2.1 + .351 )

= .805 g

ratio of C , H , O in isopentyl acetate

= 2.1 g : .351 g : .805 g

2.1 / 12 : .351 / 1 : 0.805 / 16 ratio of moles

= .175 : .351 : .05 ratio of moles

= 3.5 : 7.02: 1

= 7 : 14 : 2

empirical formula of isopentyl acetate

= C₇ H₁₄ O₂ .

5 0

3 years ago