Q5) Explain: A) why we see the sky is blue? B)
why we see the Sun red at Sunset?
Q6) Explain: why when we rotate a polarized sun
glasses looking at the reflection from a non-metallic surface, we
can almost block all the reflection.
Why can the physical properties of an unknown substance be used
to determine
the identification of the substance?
Design an experiment to determine if your salt is hygroscopic,
deliquescent,
efflorescent, or none. Note: this design does not need to be
exactly what is followed in
the lab. For full credit, a conscientious effort must be shown
in your design.
A physical property can be used to identify a substance;
however, differences in physical properties can also be used to
separate one substance from another. Explain how the following
properties can be used to either identify or separate the
following:
a.Solubility of sodium chloride and silicon dioxide
b.Melting point of naphthalene and water
1. Explain why identical twins actually still look different
(distinguishable from each other).
2. Explain the mechanism responsible for inactivating one of the
X-chromosomes in every female
3. In a nutshell, explain how the central dogma of molecular
biology has evolved in recent years?
Please answer each question separately and in paragraph
form.
1. can we be fat and still be healthy?
2. State why/why not
3. Find at least ONE academically credible source to support
your opinion AND provide a brief summary of that article.
What is the earliest point in the universe that we can observe?
Why can’t we see back further than this?
If the cosmic microwave background was generated by a 3000 K
plasma why does it have a blackbody spectrum of a 2.73 K
object?
Which fundamental force is the first force to separate from the
other forces? What is the second?
Plz answer all questions i posted, it's my last question can be
posted in this month, or i definitely...
explain the difference in properties of diamond and
graphite.
-why is graphite black while diamond is not?
-why is graphite very conductive while diamond is not a good
conductor of electricity?
-why is graphite soft while diamond is hard