If this is for chemistry then it's "made up of atoms."
D= mass over volume
So, density equals 9.0g divided by 45ml.
SO, D=.25 g/ml
I'm not 100% sure this is correct, though. Best if luck. ♡
Captain Zinc, Zincatron, Zincafier, Zinckers, Zincman, Zincit, etc. Please mark me brainliest I'm trying to level up
Answer:
To calculate the moles we must first find the molar mass M
M (Na2S2O8) = (23*2) + (32*2) + (16*8)
= 46 + 64 + 168
= 278g/mol
Molar mass = mass/moles
moles =mass / molar mass
= 25.2/278
= 0.0906mol
Hope this helps.
Organisms with albinism hard to find in nature because Albino coloration reduces an organism's chance of survival. The correct option is B
Explanation:
The congenital defect in which there is an absence of any pigmentation in organism or plant is termed albino. Tyrosinase enzyme controls the dose of melanin in the skin if there is a defect in Tyr gene the albinism occurs.
They are unable to protect itself from UV rays and are unable to protect itself from predators as they lack camouflage (in case of alligators). The beautiful colour of skin makes them prey for poaching.
The person with albinism have pink or red eye as the pigment of iris is also absent.
The albinism can be due to mutation. Heredity, diet, environment or disease.
In plants lack of chlorophyll is a condition of albinism which prevents photosynthesis and hence no survival.
