The PH scale ranges from 0-14, 7 is neutral. The acids would be 0-6, and bases 8-14
Answer:
A
Explanation:
the tendency of a material to conduct heat or electricity can be detected on the outside
Answer:
1- Natural sources are renewable with time
2- To refrain from over usage of products on unnecessary things
3- An example of poor soil management is using the soil with the most minerals to put houses on instead of farming with
Helium only possesses two valence electrons, while the other noble gasses posses eight
Answer:
Explanation:
q= mc theta
where,
Q = heat gained
m = mass of the substance = 670g
c = heat capacity of water= 4.1 J/g°C
theta =Change in temperature=(
66-25.7)
Now put all the given values in the above formula, we get the amount of heat needed.
q= mctheta
q=670*4.1*(66-25.7)
=670*4.1*40.3
=110704.1
