Which of the following is a change in physical composition?it could be D. A brick being ground up into fine dust. as this is a change from one physical form to another Which of the following is a change in chemical composition? would be A. A white precipitate forming as a result of the combination of two liquids. as this is a clear chemical change What kind of bond would you expect between H, S and O? i belive it would be D. Covalent
Which of the following is not one of the three processes of the hydrologic cycle? this gose to B. Collection the water cycle has nothing to do with this so there for its not part of the cycle
Answer: The pure metal has low structural strength, magnesium is mainly used in the form of alloys- principally with 10% or less of aluminum, zinc, and manganese- to improve it's hardness, tensile strength, and ability to be cast, welded, and machined.
I hope this really helps you!!! :) And Have a fantastic day!!!
Methylhexanamine<span> and its formula is C7H17N</span>
that thing is a drug
Answer:
714 nm
Explanation:
Using the equation: nλ=d<em>sin</em>θ
where
n= order of maximum
λ= wavelength
d= distance between lines on diffraction grating
θ= angle
n is 1 because the problem states the light forms 1st order bright band
λ is unknown
d= 
or 0.0000014 (meters)
sin(30)= 0.5
so
(1)λ=(0.0000014)(0.5)
=0.000000714m or 714 nm
The answer would be permeable because permeable means let's liquid through easily.
