When mixing substances, in order to find the final temperature after mixing, it is important to remember that the energy released should be equal to the energy absorbed by the system. We calculate as follows:
Q1 = Q2
(mCΔT)1 = (mCΔT)2
100 ( 90 - T ) = 50 ( T - 10 )
T = 63.33 °C
Explanation:
The atoms of one element differs from the atoms of other elements in terms of the number of protons they contain. This is often taken as the atomic number of such an atom.
- The number of proton is the best indicator of the atom one is dealing with.
- Based on this number, elements are categorized into distinct columns and rows on the periodic table.
- The atomic number is the number of protons or positively charge particles in the atom.
II.
It is possible to change the identity of an atom. This is only possible by altering the atomic number of the atom.
Only nuclear reactions have this capability.
When an atom undergoes nuclear reaction that involves change in number of protons, transmutation occurs and a new atom forms.
False
As Nuclear Reactor is not not a good idea to do so.
We should be able to trasfer the heat energy to produce steam and the run turbine.
Also electricity is transferred to our homes through various appliances and fuses.
Answer:
ʟᴇᴛᴛᴇʀ: ᴄ.
Explanation:
ɪʙᴀ ᴀɴɢ ᴇxᴘʟᴀɴᴀᴛɪᴏɴ sᴀ ʟᴀʜᴀᴛ ɴɢ ᴀɴsᴡᴇʀ
Answer:
A metallic bonding holds the particles of the substance together
Explanation:
<em><u>The unknown substance is a metal</u></em>:
- It is easily bent: This means it is ductile, as it is the case with a thin metallic metallic wire.
- "When the substance is placed in a n electric circuit and the switch is closed, and LED light turns on." <em>This means it easily conducts electricity</em>. Metals are good conductors.