Answer:
B. using zinc metal strips that were cut in half and a 20% hydrochloric acid solution D. using zinc metal strips that were cut in eighths and a 20% hydrochloric acid solution Explanation:
i'am not sure its either one of those two
Answer:
Explanation:
The ΔH for 6 moles is +84 J. So you just divide +84 J by 6 moles to get +14 J/mol (ΔΗreaction).
Answer:
Explanation:
Chlorine has electronic configuration of 2 , 8 , 7
In n = 3 there are 7 electrons out of which 2 are in s , and 5 are in p . But out of 5 electrons in p , one electron jumps into d orbital . so the electronic configuration becomes as follows
= 7
These orbitals like sp³d hybridise to form 7 degenerate orbitals out of which 2 orbitals contain electrons in pairs and rest three are singly occupied by electrons.( unpaired electrons )
Answer: Caffeine
Explanation:
Density is defined as the ratio of mass of object to its volume. The mathematical expression of density is given as:
We are given:
Mass of ingredient= 384 mg = (1g=1000mg)
Volume of ingredient= (Conversion factor: )
Putting values in above equation, we get:
Hence, the density of ingredient is 1.2 g/ml and it is caffeine.