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3 years ago

Thermochromic ink, for which new uses are appearing in the fashion industry, is able to do what?

1 answer:

6 0

<span>Thermochromic ink is a kind of material that takes advantage of thermochromism. In chemistry, this is where a substance changes hues when exposed varying kinds of temperature. In the fashion industry, these inks are used for creating different kinds of accessories, clothing and bag designs. </span>

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The Law of Moments is also an equation written as _____.

gayaneshka [121]

Answer:

I think M=rF

Explanation:

7 0

3 years ago

Read 2 more answers

The foul odor of rancid butter is due largely to butyric acid, a compound containing carbon, hydrogen, and oxygen. combustion an

Pavlova-9 [17]

Mass of CO₂ = 8.59 g

Molar mass of CO₂ = 44 g/mol

Moles of CO₂ = Mass of CO₂ / Molar mass of CO₂ = 8.59 g / 44 g/mol

= 0.1952 moles

Now there is 1 mole of C in 1 mole of CO₂

Therefore, moles of carbon = moles of CO₂ = 0.1952 moles

Mass of carbon = moles of C x the atomic weight of C

= 0.1952 moles x 12 g/mol

= 2.3427 g

Mass of H₂O = 3.52g

Molar mass of H₂O = 18g/mol

Moles of H₂O = 3.52g /18g/mol = 0.1956 moles

Now there is 2 moles of H in 1 mole of H₂O

Moles of H = 0.1956 moles X 2 = 0.3912 moles

Mass of H = 0.3912 moles X atomic mass of H

= 0.3912 moles X 1 g/mol = 0.3912 g

Mass of butyric acid = 4.30g

Mass of O = mass of butyric acid - (mass of C + mass of H)

= 4.30 g - 2.3427 g - 0.3912 g = 1.5661 g

Moles of O = mass of O / atomic mass of O = 1.5661 g / 16 g/mol

= 0.0978 moles

Divide by smallest mole to get the molar ratio

C = 0.1952 moles/0.0978 moles = 2

H = 0.3912 moles/0.0978 moles = 4

O = 0.0978 moles / 0.0978 moles = 1

Empirical formula of butric acid is C₂H₄O

Molecular formula of butric acid is C₄H₈O₂

3 0

3 years ago

Determine if each salt will form a solution that is acidic, basic, or ph-neutral.

sveticcg [70]

Aluminium nitrate is acidic as its made by a weak base with a relatively stronger acid.

Hope that helps ;)

8 0

4 years ago

Which of the following would not be considered an ionic compound?

svp [43]

CO2. An ionic compound is a metal and a nonmetal.

7 0

3 years ago

A mystery white powder is made up of 80% C, 8.33% H, and 11.67% N. What is its empirical formula?

fgiga [73]

Answer:

$C_8H_{10}N$

Explanation:

We assume there is 100g of this first for simplicity. That means, there will be 80g of C, 8.33g of H, and 11.67g of N. Now, we need to find the moles of each:

C = 80/12.01 = 6.66

H = 8.33/1.008 = 8.26

N = 11.67/14.01 = 0.833

Then, we divide each one by the element with the lowest amount of moles which is N.

We get 6.66/0.833 = about 8 (this is for carbon)

We get 8.26/0.833 = about 10 (this is for hydrogen)

We get 0.833/0.833 = 1 (for Nitrogen)

Then we get the empirical formula

$C_8H_{10}N$

4 0

3 years ago