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OLEGan [10]
3 years ago
13

An arrow is fired at a target on a high wal. How does the energy change between the moment the arrow is fired and the

Chemistry
2 answers:
uranmaximum [27]3 years ago
6 0

Answer:

The kinetic energy decreases as potential energy increases.

Explanation:

Phoenix [80]3 years ago
4 0

Answer: answer is C on Edge

Explanation:

You might be interested in
the pressure of 1 mol of gas is decreased to 0.05 atm 273.k. what happens to the molar volume of the gas under these conditions?
svp [43]

The molar volume of the gas : V = 447.993 L

<h3>Further explanation</h3>

Given

n = 1 mol

P = 0.05 atm

T = 273 K

Required

The molar volume

Solution

Ideal gas law :

PV=nRT

V = nRT/P

Input the value :

V = 1 x 0.08205 x 273 / 0.05

V = 447.993 L

6 0
3 years ago
What does the energy turn into when a lamp goes from unplugged to plugged
Zielflug [23.3K]
Kinetic Energy into Potential Energy
5 0
3 years ago
Read 2 more answers
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
If 2 objects have the same density they must have the same
atroni [7]

Answer:

Explanation:

Density can be defined as mass divided by volume. But 2 objects made of the same material will have the same density regardless of their volume.

8 0
3 years ago
Which best describes sodium chloride (NaCl)?
OverLord2011 [107]

Answer: NaCl is an ionic compound

Explanation: Sodium Chloride is formed from Na+ and Cl- ions.

It is soluble in water, it has crystalline structure, it has high melting point and

It is insulator as solid form. Water solution leads current.

4 0
3 years ago
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