Bromide can be investigated using the 5. The electrolysis of lead 1
following apporatus
+
&
-Bulb
Cathode
Anode.
lobo
Coloco
lead (1) bromide
oo Oc
2
Gos

个个个
heat
1) What must
be done to
the lead an bromide before the bulb lights​

An electrons position cannot be known precisely only it's probability of being in a certain location can be known

Which of the dna typing techniques do you think you would choose if you had to analyze a dna sample? why?

Nebulae are enormous clouds in outer space. they are made mostly of hydrogen gas, helium gas, and dust. some nebulae glow brightly, while others do not. the stars that people see are huge, bright balls of glowing gas. they are made mostly of hydrogen and helium. which statement correctly describes other ways in which nebulae and stars are different? a. stars can form inside a nebula but a nebula can never be produced by any star. b. a star always has a higher density than a nebula. c. stars can never form inside a nebula but a nebula can be produced by any star. d. a nebula always has a higher density than a star.