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AnnZ [28]
3 years ago
15

70 What is 27/100 plus 3/10 equals

Chemistry
1 answer:
Brut [27]3 years ago
6 0

Answer:

that is my answer hope it helps you out

Explanation:

i got 1.40 for my answer

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Which of the following processes would you predict to have an increase in entropy?
Anna [14]
C. Melting ice. 
It is C because melting ice is a change of state from solid to liquid which requires an addition of energy(or entropy) into the system.
Condensation of water occurs from a gas to a liquid state, which takes energy out of the system(water) and gives it to the surroundings(air around it). Freezing water is the same as condensation except for the state change. Deposition is simply gas to a solid instantaneously so you can again see it as with the other two examples. 

6 0
3 years ago
A chemist prepares a solution of potassium dichromate by measuring out of potassium dichromate into a volumetric flask and filli
riadik2000 [5.3K]

Answer:

0.297 mol/L

Explanation:

<em>A chemist prepares a solution of potassium dichromate by measuring out 13.1 g of potassium dichromate into a 150 mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mol/L of the chemist's potassium dichromate solution. Be sure your answer has the correct number of significant digits.</em>

<em />

Step 1: Calculate the moles corresponding to 13.1 g of potassium dichromate

The molar mass of potassium dichromate is 294.19 g/mol.

13.1 g × (1 mol/294.19 g) = 0.0445 mol

Step 2: Convert the volume of solution to L

We will use the relationship 1 L = 1000 mL.

150 mL × (1 L/1000 mL) = 0.150 L

Step 3: Calculate the concentration of the solution in mol/L

C = 0.0445 mol/0.150 L = 0.297 mol/L

4 0
3 years ago
Write a balanced chemical equation for the reaction that occurs when calcium metal undergoes a combination reaction with O2(g)?
ivann1987 [24]
When calcium joins with calcium its follows the following equation:

2Ca + O2 = 2CaO

hope that helps 

8 0
3 years ago
Important of organic chemistry in nursing​
sasho [114]

Answer:

Nurses must use organic chemistry to determine how the bodies of their patients metabolized glucose, and how the body reacts to it.

8 0
2 years ago
Saturated fats are typically liquid at room temperature. saturated fats are typically liquid at room temperature.
dmitriy555 [2]
False, saturated fats like butter or coconut oil are typically solid at room temperature.
7 0
3 years ago
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