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velikii [3]
3 years ago
7

Name the compounds represented by the

Chemistry
1 answer:
katen-ka-za [31]3 years ago
7 0

Answer:

Canxi nito dioxit; Sắt oxit vàng; Amoni dicromat;đồng axitaxetic

Explanation:

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FeS2 + 5 O2 2Fe2 + 4SO2 How many moles of FeO are formed from 0.57 moles of O2?
bagirrra123 [75]

Answer:

0.228 mol FeO

Explanation:

                                 2FeS2 + 5 O2----> 2FeO + 4SO2

from reaction                           5 mol       2 mol

given                                       0.57 mol    x

x = 0.57*2/5 = 0.228 mol FeO

3 0
3 years ago
Which is a conjugate pair in the following equilibrium? H2C2O4(aq) + HPO4(aq) 2- HC2O4(aq)- + H2PO4(aq)-
sweet [91]
 its B on plato .. ... . .. . . . . . . .. 
3 0
3 years ago
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In an experiment, 0.35 mol of co and 0.40 mol of h2o were placed in a 1.00-l reaction vessel. at equilibrium, there were 0.22 mo
Natalija [7]
We need to set up an I.C.E chart as follows:

       CO                 H20                CO2             H2 
<span>I      0.35               0.40                  0                  0 </span>
<span>C   .35-x               0.40-x               x                   x </span>
<span>E     0.19              0.40-x               x                   x 
</span>
We have 0.35 mol of CO at the start and 0.19 remaining. This means that x=0.35-0.19 >> 0.16 
<span>Now substitute in 0.16 in your Ke equation. </span>
<span>Just in case you're having trouble with that: </span>
<span>Kb= [Products]/[Reactants] = ([CO][H2O])/([CO2][H2]) 
</span>
Therefore, the constant of equilibrium would be equal to 0.56.
8 0
4 years ago
Read 2 more answers
The lewis representation above depicts a reaction between a halogen (blue) and a main-group element from group (red). in this re
valina [46]
<h2><u>Full Question: </u></h2>

Attached in attachment.

<h2><u>Answer</u>:</h2>

Y is from Group 17. It needs 1 electron to complete its octet. There are total 6 lone pairs in molecule and 1 bond pair. The bond is covalent bond.

<h3><u>Explanation</u>:</h3>

In the picture given, we can see that it contains Lewis Dot structure of two elements X and Y. The X is said as a halogen and also correspondingly has 7 electrons in its outermost shell. The Y isn't mentioned which element it is, but similarly to X it also has 7 electrons in its outermost shell. So it is also a halogen. The group of the halogen is group 17. So Y belongs to group 17.

As the element has 7 electrons in its outermost shell, so it needs 1 electron to fulfill it's octet. It forms a covalent bond with X from where it gets 1 electron via sharing.

So now, there are three unshared electron pair of X and 3 unshared electron pair of Y. So a total of 6 unshared electron pair and 1 bond pair of electron between X and Y.

4 0
3 years ago
A major component of gasoline is octane (C8H8). When liquid octane is burned in air it reacts with oxygen (O2) gas to produce "0
qwelly [4]

Answer:

0.0063 mol

Explanation:

Step 1: Write the balanced combustion equation

C₈H₁₈(l) + 12.5 O₂(g) ⇒ 8 CO₂(g) + 9 H₂O(g)

Step 2: Establish the appropriate molar ratio

According to the balanced equation, the molar ratio of C₈H₁₈ to CO₂ is 1:8.

Step 3: Calculate the number of moles of C₈H₁₈ needed to produce 0.050 moles of CO₂

0.050 mol CO₂ × 1 mol C₈H₁₈/8 mol CO₂ = 0.0063 mol C₈H₁₈

3 0
3 years ago
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