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Lady_Fox [76]
3 years ago
7

A ________ is the amount of atoms in exactly 4 grams of Helium.

Chemistry
1 answer:
masha68 [24]3 years ago
4 0
B. Atomic mass unit.
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(a) Consider the reaction of hydrogen sulfide with methane, given below:
Burka [1]

Answer:

a. H2S(g)/t = 1.48 mol/s

CS2(g)/t = 0.740mol/s

H2(g)/t = 2.96mol/s

b. Ptot /t = 981torr/min

Explanation:

a. Based on the reaction:

CH4(g) + 2 H2S(g) → CS2(g) + 4 H2(g)

<em>1 mole of CH4 reacts with 2 moles of H2S producing 1 mole of CS2 and 4 moles of 4H2</em>

<em />

If CH4 decreases at the rate of 0.740mol/s, H2S decreases twice faster, that is 0.740mol/s = 1.48 mol/s

CS2 is produced with the same rate of CH4 because 1 mole of CH4 produce 1 mole of CS2 = 0.740mol/s

The H2 is produced four times faster than CH4 is decreased, that is:

0.740mol/s * 4 = 2.96mol/s

b. With the reaction:

2 NH3(g) → N2(g) + 3 H2(g)

2 moles of ammonia are consumed whereas 1 mole of N2 and 3 moles of H2 are produced.

That means 2 moles of gas are consumed and 4 moles of gas are produced.

If the NH3 decreases at a rate of 327torr/min, the gases are produced in a rate twice faster. That is 327torr/min*2 =

654torr/min

The rate of change of the total pressure is rate of reactants + rate of products:

654torr/min + 327torr/min =

981torr/min

6 0
4 years ago
What 2 chemicals react together during photosynthesis
Nitella [24]

Answer:

The photosynthesis chemical equation states that the reactants (carbon dioxide, water and sunlight), yield two products, glucose and oxygen gas. The single chemical equation represents the overall process of photosynthesis.

Explanation:

Definition: the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.

Hope this helps!

Can I get brainliest?

5 0
4 years ago
Hurry need the answer asap
Soloha48 [4]

P,T,Y refers to the set of points which are collinear and is therefore denoted as option C.

<h3>What are Collinear points?</h3>

This is commonly used in geometry and refers to the set of points which lie on the same straight line and are always close to each other when compared to other points. It is possible for them to appear on different planes only and the value by the triangle from the three points is usually zero.

In the example give, only P,T and Y are the points which lie on the same line while other options have points which lie on different lines thereby making them incorrect.

This is therefore the reason why option C was chosen as the most appropriate choice.

Read more about Collinear points here brainly.com/question/18559402

#SPJ1

7 0
2 years ago
Answer them all plzzzz in order
jeyben [28]
3. photosynthesis , 5. carbon dioxide , second blank of #2 is fossil fuels
7 0
3 years ago
Read 2 more answers
What is coke in chemistry?<br><br>​
Igoryamba
Cole coke coke coke coke coke coke coke
6 0
3 years ago
Read 2 more answers
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