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lbvjy [14]
3 years ago
5

When they're trying to solve a problem, engineers follow a series of Question 1 options: problems steps solutions tests

Chemistry
2 answers:
ankoles [38]3 years ago
7 0

Answer:

the answer solutions tests I think

gogolik [260]3 years ago
6 0
I would say the answer is solutions tests
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PLEASE ANSWER <br> ARE THESE CORRECTTTTTT
Naddik [55]

1. The answer is E.

2. I agree with your answers.

3. I also agree with your answers

3 0
3 years ago
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A. Convert the following Fahrenheit temperatures to Celsius (you may use a calculator):
Bezzdna [24]
37C
20C
-6.67C
50F
86F
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4 0
3 years ago
If 287 mL of a 1.6 M glucose solution is diluted to 412 mL , what is the molarity of the diluted solution
satela [25.4K]

Answer:

The answer to your question is 1.11 M

Explanation:

Data

volume 1 = 287 ml

concentration 1 = 1.6 M

volume 2= 412 ml

concentration 2 = ?

Formula

               Volume 1 x concentration 1 = Volume 2 x concentration 2

Solve for concentration 2

          concentration 2 = (volume 1 x concentration 1) / volume 2

Substitution

          concentration 2 = (287 x 1.6) / 412

Simplification

          concentration 2 = 459.2 / 412

Result

           concentration 2 = 1.11 M  

5 0
3 years ago
To what temperature does a 250 ml cylinder containing 0.40 grams of helium gas need to be collected in order for the pressure to
VMariaS [17]

Answer:

T =76.13 K

Explanation:

Given data:

Temperature of gas = ?

Volume of gas = 250 mL(250/1000 = 0.25 L)

Mass of helium = 0.40 g

Pressure of gas = 253.25 kpa (253.25/101 = 2.5 atm)

Solution:

Formula:

PV = nRT

First of all we will determine the number of moles of helium.

Number of moles = mass/ molar mass

Number of moles = 0.40 g/ 4 g/mol

Number of moles = 0.1 mol

Now we will put the values.

R = general gas constant = 0.0821 atm.L/ mol.K

T = PV/nR

T =2.5 atm× 0.25 L /0.1 mol ×0.0821 atm.L/ mol.K

T = 0.625  /0.00821/K

T =76.13 K

6 0
3 years ago
What is the strongest type of van der Waals force that exists between molecules of ammonia, NH3?
Marianna [84]
It is hydrogen bond(as well as fh, and h2o), intermolecular force.
6 0
3 years ago
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