Answer:
the answet is no.3.by The have different mass and different charge.
O sette
taste bitter
have high pH's - more than 7
feel slippery
Explanation:
Bases are certain metallic oxides, metallic hydroxides and aqueous ammonia. They are substances that produces hydroxyl ions in solutions.
- The aqueous solutions of many bases have a bitter taste
- Bases generally have a soapy or slippery feel.
- They have a high pH reading on the scale.
- They are good electrolytes
- The are used for making soaps in industries.
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A atom is a basic element
(Answer) 0.166 moles of copper (I) nitride are needed.
Mass of copper (I) oxide = 35.7 g
Moles of copper (I) oxide formed by the reaction = (Mass / molar mass)
= ( 35.7 g / 143.09 g/mol ) = 0.25 moles
According to the balanced chemical equation,
mole ratio of copper (I) nitride and copper (I) oxide = 2: 3
Therefore, moles of copper (I) nitride needed to form 0.25 moles of copper (I) oxide = (2/3 x 0.25) moles = 0.166 moles.
Thus, 0.166 moles of copper (I) nitride are needed to form 0.25 moles of copper (I) oxide.
