Answer:
Valence Electrons
Explanation:
Valence electrons are the electrons in the outermost shell and can be used to form bonds.
Answer:
99.86%
Explanation:
The sun contains 99.86% of the mass in the solar system. It is a HUGE star and it is the brightest star too. the other .14% is usually the planets and the galaxy's.
Answer:
How many atoms of each element are there in one molecule of H3PO4? there are 8 atoms in total in H3PO4. there are 3 atoms of hydrogen, 1 atom of phosphorous and 4 atoms of oxygen in the one molecule of this compound, which is called hydrogen phosphate.
Answer: The quantity of heat produced by the reaction is +26710.656J
Explanation:
Quantity of Heat, Q = mass * specific heat capacity *temperature change
Q = mCpTc, where m= mass, Cp= specific heat capacity, Tc is temperature change
m= 210.0g, Cp=4.184J/(g · oC), Tc= 57.6 - 27.2 = 30.4 oC
Q = 210.0g *4.184J/(g · oC) * 30.4 oC
Q = +26710.656J
Therefore, the quantity of heat produced by the reaction is +26710.656J.
Note: <em>Even though heat is given out by the system and is normally written as a negative value to indicate that heat is lost, the answer is written as a positive decimal number according to instruction.</em>
