Answer:
Explanation:5,2 methyle- dhexene
He is making a conclusion from a single observation.
Silver isn’t the only metal that is shiny and has no colour.
For example, lithium, sodium, magnesium, and aluminium all have about the same colour as silver.
Answer:
24.4 amu
Explanation:
1. Multiply the mass numbers by their percentages using the rules of significant figures:
Isotope 1: 24(.786) = 18.864 ⇒ 18.9
Isotope 2: 25(.101) = 2.525 ⇒ 2.53
Isotope 3: 26(.113) = 2.938 ⇒ 2.94
2. Find the sum of the products calculated using the rules of significant figures:
18.9 + 2.53 + 2.94 = 24.37 ⇒ 24.4
E = m x c x change in temp (delta T)
Change in temp = E / (m x c)
= 235000 / 1000* 4.18
= 235000 / 4180
=56.2200957
Temp change = 56.2 degrees Celsius
Answer:
Explanation:
We are given that 25 mL of 0.10 M 
is titrated with 0.10 M NaOH(aq).
We have to find the pH of solution
Volume of 
Volume of NaoH=0.01 L
Volume of solution =25 +10=35 mL=
Because 1 L=1000 mL
Molarity of NaOH=Concentration OH-=0.10M
Concentration of H+= Molarity of 
=0.10 M
Number of moles of H+=Molarity multiply by volume of given acid
Number of moles of H+=
=0.0025 moles
Number of moles of 
=0.001mole
Number of moles of H+ remaining after adding 10 mL base = 0.0025-0.001=0.0015 moles
Concentration of H+=
pH=-log [H+]=-log [4.28
]=-log4.28+2 log 10=-0.631+2
