Answer:
The right answer is "3 g".
Explanation:
Given:
Initial mass substance,
By using the relation between half lives and amount of substances will be:
⇒ 
Thus, the above is the correct answer.
Answer:
Simulation, in industry, science, and education, a research or teaching technique that reproduces actual events and processes under test conditions. ... The interaction of these phenomena create new situations, even new rules, which further evolve as the simulation proceeds.
Answer:
just go up to him and express ur feelings, there is no harm for that.
Explanation:
Answer:
Both have a pH greater than 7, but NH₃ has a lower pH than KOH.
Explanation:
- Both of NH₃ and KOH are bases (can produce OH⁻), so both have a pH greater than 7.
- NH₃ is considered as a weak base (not completely ionized), while KOH is a strong base (completely ionized).
- If both NH₃ an KOH has the same concentration, KOH produces OH⁻ higher than that of NH₃.
- So, NH₃ has a lower pH than KOH.
- Thus the right choice is:
<em>Both have a pH greater than 7, but NH₃ has a lower pH than KOH.</em>
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Answer: 1 mole of strontium, 2 moles of hydrogen, 2 moles of carbon, 6 moles of O
Explanation: i think i’m not sure
