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TEA [102]
4 years ago
11

Given the reaction below, which is the reduced substance?

Chemistry
2 answers:
Shalnov [3]4 years ago
8 0
Cl2 is the reduced substance
sveta [45]4 years ago
5 0

Answer:

B)  Cl2

Explanation:

edg2020

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How many grams are in 5.3x10^25 molecules of co2
dem82 [27]

Answer:

3873.15 grams

Explanation:

7 0
3 years ago
A solution of water (kf=1.86 ∘c/m) and glucose freezes at − 3.75 ∘c. What is the molal concentration of glucose in this solution
Bezzdna [24]

Glucose freezes at -3.75 °C and freezing point of pure water is 0 °C. Thus, depression in freezing point or \Delta T_{f} can be calculated as follows:

\Delta T_{f}=0-(-3.75)^{o}C=3.75^{o}C

It is related to molal concentration as follows:

\Delta T_{f}=k_{f}m

Here, k_{f} is freezing point depression constant.

Rearranging to calculate molal concentration:

m=\frac{\Delta T_{f}}{k_{f}}=\frac{3.75 ^{o}C}{1.86^{o}C/m}=2.02 m

Therefore, molal concentration of glucose in the solution will be 2.02 m.

8 0
4 years ago
If 1.25L of gas exists at 35∘C with a constant pressure of 0.70 atm in a cylindrical block and the volume were to be changed to
Vlad [161]

Answer:

hey are related by the the density triangle.

Explanation:

They are related by the the density triangle.

mcdn1.teacherspayteachers.com

d =  

m

V

m = d×V

V =  

m

d

DENSITY

Density is defined as mass per unit volume.

d =  

m

V

Example:

A brick of salt measuring 10.0 cm x 10.0 cm x 2.00 cm has a mass of 433 g. What is its density?

Step 1: Calculate the volume

V = lwh = 10.0 cm × 10.0 cm × 2.00 cm = 200 cm³

Step 2: Calculate the density

d =  

m

V

=  

433

g

200

c

m

³

= 2.16 g/cm³

MASS

d =  

m

V

We can rearrange this to get the expression for the mass.

m = d×V

Example:

If 500 mL of a liquid has a density of 1.11 g/mL, what is its mass?

m = d×V = 500 mL ×  

1.11

g

1

m

L

= 555 g

VOLUME

d =  

m

V

We can rearrange this to get the expression for the volume.

V =  

m

d

Example:

What is the volume of a bar of gold that has a mass of 14.83 kg. The density of gold is 19.32 g/cm³.

Step 1: Convert kilograms to grams.

14.83 kg ×  

1000

g

1

k

g

= 14 830 g

Step 2: Calculate the volume.

V =  

m

d

= 14 830 g ×  

1

c

m

³

19.32

g

= 767.6 cm³

Explanation:

7 0
3 years ago
Which part of the water cycle happens to most water after surface runoff?
kiruha [24]

Answer:

Condensation is my the corrcect answer to this question

7 0
2 years ago
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Which of the following is the most-polluting nonrenewable energy source?
aleksandr82 [10.1K]
The answer is going to be coal
4 0
3 years ago
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