Answer: North American and Europe are moving away
Explanation:
Five points of Dalton's atomic theory:
1) all elements are made up of atoms.
<span>2) atoms are so small that they cannot be divided any further. </span>
<span>3) an atom can neither be destroyed nor be formed. </span>
<span>4) atoms of an element are similar, they posses same mass and same properties. </span>
<span>5) atoms of different elements combine in a definite ratio to form compounds. </span>
<span>
</span><span>Due to further experimentation it was concluded that atom is made up of small particles identified as proton, neutrons, and electrons. They can be further subdivided.
Another change is the presence of isotopes of atoms of different elements. Hence, atoms of the same element can also have different masses. </span>
I am pretty sure you can't, but hey everything is possible! :)
Answer:
The temperature of the mixture is 60°C
Explanation:
We can write the energy of water as follows:
E = m×C×T
<em>Where E is energy in Joules, m is mass of water, C is specific heat of water = 4.184J/g°C and T is temperature</em>
<em />
Replacing fot both samples:
E = 20g×4.184J/g°C×30°C
E = 2510.4J
E = 40g×4.184J/g°C×75°C
E = 12552J
The total energy of the mixture is 12552J + 2510.4J = 15062.4J
Mass = 60g:
15062.4J = 60g×4.184J/g°C×T
60°C = T
<h3>The temperature of the mixture is 60°C</h3>