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mafiozo [28]
4 years ago
6

Is elemental sulfur a pure substance

Chemistry
1 answer:
Valentin [98]4 years ago
7 0

Answer:

All elements are pure substances. So yes it is.

Explanation:

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Show ur working:
AleksAgata [21]

Answer:

120 g SO3

Explanation:

128 g SO2  -> 160 g SO3

 96 g SO2  -> x

x= (96 g SO2 * 160 g SO3)/128 g SO2

x= 120 g SO3

8 0
4 years ago
QUESTION 3
Blababa [14]
These questions are all about indirect and direct variation with PV=nRT, the ideal gas equation

Q3.
false, because of PV=nRT, the ideal gas equation if V goes up, P has to go down to equal nRT

Q4. false, if V remains constant, and P and T are constant as moles of gas are added, then something is wrong becse something has to change when stuff is added (V has to go down)

Q5.
PV=nRT
when T and n are constant, (R is the gas constant)
PV=k, aka V=k/P which means inversly proportional

TRUE


Q6.
ggeasy
refer to past question
PV=k
if P is doubled then V has to halve in order to equal k
1/2 times 2=1
volume is halved


Q7. use charles law
V/T=k
so
given
V=4
T= kelvins, so 299
4/299=k
so when temp goes to 22 does V go to 3.95
4/299=3.95/295?
true
because they're equal



Q8
FALSE, must be used in kelvins
T=absolute tempurature in kelvins


Q9
PV=nRT
solve for T
(PV)/(nR)=T

use final volumes and pressures
P=5atm
V=24L
n=1
R=0.082057 atm L/(mol K)
(5atm*24L)/(1mol*0.082057 atm L/mol K)=T
see, if you didn't mess up, the units cancel nicely
T=1462.4
1200 K is closest



Q10
PV/T=constant because moles are constant (supposedly)

V=4L
P=2.08atm
T=275K

so find initial to final is constant
(2.08atm*4L)/(275K)=(Pfinal*2.5L)/(323K)
solve for Pfinal
Pfinal=3.92315 atm
answer is 3.9atm

Merry Christmas
4 0
4 years ago
Which area is most likely closest to a salt marsh or an estuary?
Archy [21]

Answer:

coastal area with very high tides deep ocean water miles from a river's mouth

Explanation:

Marshes are a type of wetland ecosystem where water covers the ground for long periods of time. Marshes are dominated by herbaceous plants, such as grasses, reeds, and sedges(National Geographic Society).

hope dis help

4 0
3 years ago
Avanti works in a bookstore. She has four books and is going to place them in two stacks. How did the temperatures of the four b
Fed [463]
In the bookstore Avanti gave four books so it would be 1
6 0
3 years ago
Which scientist was the first to practice the scientific method we use today
bixtya [17]

Answer:

Aristotle

Explanation:

6 0
3 years ago
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