All categories

3 years ago

Please help ASAP only if you know

Chemistry

1 answer:

lina2011 [118]3 years ago

6 0

Answer:

B. The Fluids

Explanation:

The humors are the fluid substances such as blood

You might be interested in

How do scientists test for a substance’s flammability in a substance

saveliy_v [14]

Answer:

Determining flammability can be as simple as holding a sample of the substance over a match. If it burns, it is flammable, leading to additional experiments to find more properties. Measuring the heat given off by the substance when it burns gives the heat of combustion.

Explanation:

5 0

3 years ago

Explain why sharpening a pencil is a different type of physical change it freezing water to make ice cubes

laila [671]

Because you can't make the pencil go back to normal form

8 0

4 years ago

Read 2 more answers

Choose a starting point in the water cycle and describe the process you would go through to move through the entire cycle.

Bogdan [553]

The water cycle describes how water evaporates from the surface of the earth, rises into the atmosphere, cools and condenses into rain or snow in clouds, and falls again to the surface as precipitation. ... The cycling of water in and out of the atmosphere is a significant aspect of the weather patterns on Earth.

4 0

3 years ago

In the reaction 3H2+ ____ N2 --> 2 NH3, what coefficient should be placed in front of N2 to balance the reaction?

qaws [65]

A.) 1 is your answer.......

4 0

3 years ago

Read 2 more answers

Question 26 Suppose a flask is filled with of and of . The following reaction becomes possible: The equilibrium constant for thi

Blizzard [7]

Answer:

0.36 M

Explanation:

There is some info missing. I think this is the complete question.

Suppose a 250 mL flask is filled with 0.30 mol of N₂ and 0.70 mol of NO. The following reaction becomes possible:

N₂(g) +O₂(g) ⇄ 2 NO(g)

The equilibrium constant K for this reaction is 7.70 at the temperature of the flask. Calculate the equilibrium molarity of O₂. Round your answer to two decimal places.

Initially, there is no O₂, so the reaction can only proceed to the left to attain equilibrium. The initial concentrations of the other substances are:

[N₂] = 0.30 mol / 0.250 L = 1.2 M

[NO] = 0.70 mol / 0.250 L = 2.8 M

We can find the concentrations at equilibrium using an ICE Chart. We recognize 3 stages (Initial, Change, and Equilibrium) and complete each row with the concentration or change in the concentration.

N₂(g) +O₂(g) ⇄ 2 NO(g)

I 1.2 0 2.8

C +x +x -2x

E 1.2+x x 2.8 - 2x

The equilibrium constant (K) is:

$K=7.70=\frac{[NO]^{2}}{[N_{2}][O_{2}]} =\frac{(2.8-2x)^{2} }{(1.2+x).x}$

Solving for x, the positive one is x = 0.3601 M

[O₂] = 0.3601 M ≈ 0.36 M

7 0

3 years ago