For which of the following equilibria does Keq= [O2]?a. O2(l)<=>O2(g)
b. 2O3(g)<=>3O2(g)
c. 2H2O(l)<=>2H2(g)+ O2(g)
d. 2Hg(s)+ O2(g)<=>2HgO(s)
e. C(s)+ O2(g)<=>CO2(g)

Answers

Answer 1

Answer: its A if youre doing plato

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A crucible contains 6.4 g of copper, Cu. How many moles does this amount contain? [Given: Cu=64]

Answers

Use this formula:
Mass = moles x RFM

(RFM = Relative Formula Mass, or the total mass of a substance or element for example Cu=64)

Rearrange the formula to find the number of moles
Moles = mass/RFM
=6.4/64
= 0.1

A temperature of 37°C is equivalent to a temperature of(1) 98.6 K (3) 310. K
(2) 236 K (4) 371 K

Answers

0K = -273C
So
273K = 0C
And
310K = 37C

Answer:

3= 310. k

Explanation:

how to convert 37 Celsius to Kevin is to add 273.15 to 37 then you get 310.15 Kevin then you round that number to the nearest whole and you get 310 and that is your answer. please give me brainiest

Which formula represents a molecular compound?
(1) Kr (3) N2O4
(2) LiOH (4) NaI

Answers

N2O4 is the only option from the list that represents a molecular compound, since compounds must contain at least two different atoms, although these can be from different groups.

Answer: Option (3) is the correct answer.

Explanation:

A molecular compound is a compound in which atoms used to share electrons and thus results in the formation of covalent bonds.

For example, $N_(2)O_(4)$ is a covalent compound and hence, it is a molecular compound.

Whereas LiOH and NaI are ionic compounds as their atoms has transferred electrons.

Therefore, we can conclude that out of the given options, $N_(2)O_(4)$ is the formula which represents a molecular compound.

A rectangular solid measures 1.0m by 5.6cm by 2.1mm express its volume in cubic meters

Answers

First, make sure all three measurements have the same unit (I recommend meters because that's what the question calls for)

1.0m=1.0m
5.6cm=0.056m
2.1mm=0.0021m

Then, you just want to multiply the three together to get the total volume.
1.0X0.056X0.0021=0.0001176 or 0.00012, if your teacher wants you to use proper sig figs

Answer : The volume of of rectangle is, $0.0001176m^3$