Answer:
a. Too close to zero.
b. Higher than zero.
c. Lower than zero.
d. Too close to zero.
e. Higher than zero.
Explanation:
The entropy of a reaction, S, is positive when the disorder of the system increases. That is:
Solid → Liquid → Gas S>0
When S<0, the disorder decreases:
Gas → Liquid → Solid S<0
Thus:
a. H2(g)+Cl2(g)→2HCl(g)
2 moles of gas produce 2 moles of gas:
<em>S too close to zero.</em>
b. 2H2O2(l)→2H2O(l)+O2(g)
A liquid is producing a gas:
<em>S>0
</em>
c. CO(g)+3H2(g)→CH4(g)+H2O(g)
4 moles of gas produce 2 moles of gas, the disorder decreases:
<em>S<0</em>
d. CH4(g)+2O2(g)→CO2(g)+2H2O(g)
3 moles of gas produce 3 moles of gas:
<em>S too close to zero.</em>
e, 2SO3(g)→2SO2(g)+O2(g)
2 moles of gas produce 3 moles of gas.
<em>S>0</em>
Answer:
Answer would be 4/2
Explanation:
A is the best answer choice because it was between A and D but 2 is not the denominator so it couldnt be D
Answer:
Bromine (35) 1s²2s²2p63s²3p⁶3d¹⁰ 4s² 4p⁵
Magnesium(12) 1s2 2s2 2p6 3s²
Selenium (34) 1s²2s²2p63s²3p⁶3d¹⁰ 4s² 4p4
Explanation:
In the SPDF electronic configuration, the S orbital can accommodate maximum of 2 electrons,
The P orbital has maximum of 6 electrons
The D orbital has maximum of 10 electrons
The F orbital has maximum of 14 electrons
Bromine with atomic number 35 belongs to group seven(7) period four (4) it ground state electron configuration is 1s²2s²2p63s²3p⁶3d¹⁰ 4s² 4p⁵
Magnesium with atomic number 12 belongs to group one, period two(2), it ground state electron configuration is 1s2 2s2 2p6 3s²
Selenium has atomic number of 34, it belongs to group six(6), period four(4) it electronic configuration is 1s²2s²2p63s²3p⁶3d¹⁰ 4s² 4p4
Answer:
A
Explanation:
because i looked it up and read a paragraph explaining how gravity pulled gas and dust together to create the solar system
Answer:
Examples of compounds that contain only covalent bonds are methane (CH4), carbon monoxide (CO), and iodine monobromide (IBr). Covalent bonding between hydrogen atoms: Since each hydrogen atom has one electron, they are able to fill their outermost shells by sharing a pair of electrons through a covalent bond.
Explanation: