Answer:
E
Explanation:
A. Is wrong
To prepare chicken noodle soup, several things are needed to be mixed. This is what makes it a mixture
B is wrong
Powerade is not a compound.
C is wrong
The air inside a balloon is usually helium which is an element and not a compound
D. Lead pipe is not a compound
E. Baking soda is a compound as it contains elements in different ratios
Answer:
My dream school would be a school where the teachers were all friendly, positive, and kind. My fellow students would be equally enthusiastic and hard-working students. It would be a spacious building, with plenty of student parking spaces and lots of outdoor space for relaxing.
As a sample of 12 (s) sublimes to 12 (g), the entropy of the sample Increases because the particles are more randomly arranged.
Answer:
2 grams of salt must be added by chef to make the recipe noticeably saltier.
Explanation:
Weber's Law :
Where =
I = Initial stimulus intensity
ΔI = Difference threshold
k = Weber constant
According to Weber’s constant for saltiness , k= 
Amount of salt required for the recipe , I= 10 g
2 grams of salt must be added by chef to make the recipe noticeably saltier.
PV = nRT
n = PV/RT
n = (2)(3)/(.0821)(273*25)
n = 6/24.466 = 0.245
