Reaction:
<span>HCl + NaOH ---> NaCl + H2O
</span><span>1 mole of HCl = 36,5 g
</span><span>1 mole of NaOH = 40g
</span><span>so, according to the reaction:
</span><span>1 mol HCl = 1 mol NaOH
</span>so, we need > 36,5 g HCl (<u>hydrochloric acid</u><span>)
</span><u>
answer: 36,5 g HCl (hydrochloric acid)
</u><span> ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
</span><span>next question.
</span><span>
1 mole of NaCl = 58,5 g
</span><span>1 mole of H2O = 18g
</span>
so, according to the reaction:
1 mole of HCl (36,5 g) <span>----------------- - 1 mole of NaCl (58,5 g)
</span><span>(the same for NaOH)
i
</span>1 mole of HCl<span> (36,5 g) ------------------ 1 mole of H2O (18 g)
</span>(the same for NaOH)
<span>so, this reaction is stechiometric
</span><u>
answer: 58,5 g NaCl i 18g H2O</u>
Hello there,
Your correct answer would be "<span>the energy of a photon".
Hope this helps.
~Hottwizzlers
</span>
Answer:
c. the heart
all the rest actually will excrete, the heart is in a closed system so contributes to excretory organs but doesn't actually do it barring an accident
Explanation:
If a hypothesis is not contradicted after a lot of testing, it may be considered a law.
Explanation:
If a hypothesis is not contradicted after a lot of testing, it can be considered a law is a true and correct statement. Laws and theories are completely different approaches in a scientific method.
- Laws are generalized prediction of scientific observations within a limit. Laws holds true when certain parameters are right and correct.
- Theories are explanation of scientific phenomenon. They provide reasons why a certain observation is right or false.
- Both laws and theories are products of hypothesis.
- A hypothesis is a scientific guess or a tentative explanation into an investigation.
- It must be falsifiable, repeated and testable.
- When a hypothesis survives being repeated or tested or falsified, its status is elevated to that of a law or a theory.
Learn more:
hypothesis brainly.com/question/3418951
experiments brainly.com/question/5096428
#learnwithBrainly
2.22 g of NaF*1mol/41.97g of NaF =0.0529 moles
