CHEMISTRY HIGH SCHOOL

In the phase diagram below, point B describes the critical point.TRUE

FALSE

Answers

Answer 1
Answer: The critical point is said to be the end point of a phase diagram. The most known example is the liquid-vapor critical point, the point in a PT curve that signifies that at this point both vapor and liquid coexist. The critical point is characterized by a critical pressure and a critical temperature.

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Carbon monoxide is a poisonous gas.

Answers

Carbon monoxide is genuinely a poisonous gas. It isn't very detectable since it is achromic, inodorous, insipid, plus non-exasperating so it isn't detectable.
So the answer to your question is YES.
Yes it is, because it binds irreversibly to the heamoglobin in the blood, which prevents it from transporting oxygen

Given that the molar mass of naoh is 40.00 g/mol, what mass of naoh is needed to make 2.500 l of a 2.000 m naoh solution? use molarity equals startfraction moles of solute over liters of solution endfraction.. 0.1250 g 5.000 g 32.00 g 200.0 g

Answers

The mass of Sodium hydroxide which is needed to make 2.500 L of a 2.000 M NaOH solution is 200 grams.

How do we calculate mass from moles?

Mass of any substance will be calculated by using their moles as:

n = W/M, where

W = required mass

M = molar mass

Given that, molarity of NaOH = 2M

Volume of NaOH solution = 2.5L

Moles of NaOH will be calculated by using the below equation as:

M = n/V

n = (2)(2.5) = 5 moles

Now we calculate the mass of NaOH of 5 moles as:

W = (5mol)(40g/mol) = 200g

Hence option (4) is correct.

To know more about moles, visit the below link:

brainly.com/question/15303663

Answer:

d

Explanation:

The three components essential for a fire are:a. Oxygen, fuel, ignition source.
b. Oxygen, fuel, primer.
c. Oxygen, fuel, oxygen enriched environment.
d. Oxygen, fuel, a liquid.

Answers

Hey there


The answer should be : Oxygen, fuel , heat


I hope that's help !

Quartzite is a coarse-grained rock derived from sandstone.Which type of rock is quartzite?


metamorphic


extrusive


sedimentary


igneous

Answers

its a metamorphic rock

Answer:

granoblastic metamorphic rock

Explanation:

A buffering solution consists of both strong acids and bases.
a. True
b. False

Answers

False. A buffering solution consists of a WEAK acid such as CH3COOH, C5H5N, or ammonia. A buffering solution resists pH change upon the addition of an acidic or basic components. It can neutralize little amounts of added acid or base, thus maintaining the pH of the solution relatively stable. The correct answer is letter "B. false"

Gas burning in an engine is an example of a chemical change

phase change

physical change

nuclear change

Answers

The answer is the first option. Gas burning in an engine is an example of a chemical change. Chemical change is a change where the substance changes in identity or form new substances after undergoing a process. In this case, the gas reacts with oxygen forming combustion products, commonly carbon dioxide and water.
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