Answer:
True
Explanation:
ion: an atom or molecule with a net electric charge due to the loss or gain of one or more electrons.
117 mL of 0.210 M K₂S solution
Explanation:
The question asks about the volume of 0.210 M K₂S (potassium sulfide) solution required to completely react with 175 mL of 0.140 M Co(NO₃)₂ (cobalt(II) nitrate).
We have the chemical reaction:
K₂S + Co(NO₃)₂ → CoS + 2 KNO₃
molar concentration = number of moles / volume (L)
number of moles = molar concentration × volume
number of moles of Co(NO₃)₂ = 0.140 × 175 = 24.5 mmoles
We see from the chemical reaction that 1 mmole of Co(NO₃)₂ is reacting with 1 mmole of K₂S, so 24.5 mmoles of Co(NO₃)₂ are reacting with 24.5 mmoles of K₂S.
volume = number of moles / molar concentration
volume of K₂S solution = 24.5 / 0.210 = 117 mL
Learn more about:
molar concentration
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The correct statement should be the below:
Research suggests that the health benefits of phytochemicals are most prevalent when phytochemicals are consumed in dietary <span>supplement form.</span>
<span>entropy = heat energy (q) /Temperature(T)
can u now answer it </span>
Answer: Mother has bb. Father has Bb.
Top left box= Bb
Top right box=bb
Bottom left box= Bb
Bottom Right box=bb
Why?
Mother has little b’s because the dominant trait would B would over power the b and give her browns eyes but she has blue so the answer is bb
Father has Bb because he has brown eyes and it says they are heterozygous meaning that he has a both the Dominant and recessive gene.
I hope this helped you :D
