Answer:
Physical
Explanation:
because the erosion of the canyon did not change any of the chemical attributes of the rock it only changed the appearance. it may have changed the color which is an example of chemical properties but in this case, it is physical. But in other cases, you would refer to this type of weathering as mechanical weathering.
1) Reaction is exothermic because energy of products is less than energy of reactants
2) Energy is released because the reaction is exothermic
3) 350
4) 150
5) 500-350=150
6) 350-150=200
Answer:
Mass of CuCl₂ = 23.125 g
Explanation:
Given data:
Number of moles of CuCl₂ = 0.172 mol
Mass of CuCl₂ = ?
Solution:
First of all we will calculate the molar mass of CuCl₂.
Molar mass of CuCl₂ = 63.546 + 2(35.5)
Molar mass of CuCl₂ = 134.45 g/mol
Formula:
Number of moles = mass / molar mass
Mass = Number of moles × molar mass
Mass = 0.172 mol × 134.45 g/mol
Mass = 23.125 g
5-10 seconds xxx :) hope this helps
Well you didnt give me enough information so i cant really answer your question