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8090 [49]
3 years ago
9

one advantage of recording data accurately is that you can _____. control the results repeat the experiment eliminate mistakes a

void having to analyze your data
Chemistry
1 answer:
Papessa [141]3 years ago
3 0
repeat the experiment would be the easiest way to make sure u got the correct and accurate answer
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Determine the formula of chromic acid.
Katyanochek1 [597]

<u>Answer:</u> The formula of chromic acid is H_2CrO_4

<u>Explanation:</u>

We are given an ionic compound named as chromic acid. This acid is formed by the combination of hydrogen ion and chromate ion.

An acid is defined as the substance which releases hydrogen ion when dissolved in water.

Hydrogen is the 1st element of periodic table having electronic configuration of 1s^1.

This element will loose 1 electron to form H^{+} ion.

Chromate ion is a polyatomic ion having chemical formula of CrO_4^{2-}

By criss-cross method, the oxidation state of the ions gets exchanged and they form the subscripts of the other ions. This results in the formation of a neutral compound.

So, the chemical formula for the given compound is H_2CrO_4

Thus, the formula of chromic acid is H_2CrO_4

8 0
3 years ago
Explain viscosity <br> Pls help ty
Fantom [35]
The viscosity of a fluid is a measure of its resistance to deformation at a given rate. For liquids, it corresponds to the informal concept of "thickness": for example, syrup has a higher viscosity than water.
3 0
2 years ago
Read 2 more answers
Pls help if you only know the correct answer! Thanks!!
Likurg_2 [28]

Answer:

1. H=2, O=1

2. H=4, O=2

3. C=1, O=1

4.

a. reactants C=1, O=2

b. products C=1, O=2

5.

a. reactants H=4, O=2

b. products H=4, O=2

6

a. reactants C=1, O=1, H=4

b. products C=1, O=1, H=4

4 0
2 years ago
Identify a human activity that impacts the land negatively then describe a positive action that can help rude effects caused by
Lostsunrise [7]
The number of trips one takes in a car should be reduced.

reduce or eliminate fireplace and wood stove use.

burning leaves, trash, and other materials should be avoided.

using gas-powered lawn and garden equipment should be also be avoided.
5 0
2 years ago
At 330 K the vapor pressure of pure n-pentane is 1.92 atm and the vapor pressure of pure n-octane is 0.07 atm. If 330K is the no
AleksAgata [21]

Answer: mole fractions are

For n-pentane = 0.965

For n-octane = 0.035

Explanation: pressure exerted by each gas is,

n-pentane = 1.92atm

n-octane = 0.07atm

Total pressure exerted = 1.92 + 0.07

= 1.99atm.

Recall that the partial pressure exerted by each gas is the product of its mole fraction and the total pressure, that is,

Pres. n-pentane = n x pressure(total)

1.92 = n x 1.99

n = 1.92/1.99 = 0.965 for n-pentane

For n-octane,

n = 1 - 0.965 = 0.035 for n-octane.

7 0
3 years ago
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