Answer:
B 16
Explanation:
the atomicnumber =protons of the atom =electrons do keep in mind that they are charged negatief
Ferrous sulfate (FeSO4) is obtained by the reaction of aqueous ferric sulfate with gaseous sulfur dioxide and water according to the equation below:
Aqueous ferric sulfate = 
Gaseous sulfur dioxide = 
Water = 
Aqueous sulfuric acid = 
Aqueous ferrous sulfate = 
Thus, the balance equation becomes:
+
+

More on ferrous sulfate can be found here: brainly.com/question/10834028
Answer:
hydrochloric acid has a molar mass of
36.46 g/mol
, which means that the
164-g
sample will contain
164
g
⋅
1 mole HCl
36.46
g
=
4.498 moles HCl
As you know, molarity is defined as moles of solute, which in this case is hydrochloric acid, divided by liters of solution
molarity
=
moles of solute
liters of solution
A
6.0-M
hydrochloric acid solution will contain
6
moles of hydrochloric acid for every liter of solution. This means that
4.498
moles will come with a volume of
c
=
n
V
⇒
V
=
n
c
V
=
4.498
moles
6.0
moles
L
=
0.7497 L
Answer:
A container of hot water was left out on a table. Some of its thermal energy was transferred to the environment. The results in degrees Celsius are shown here. ... Solar energy warming a room.
Explanation:The relationship between the temperature of a system and the total energy of the ... Identical containers, made of different materials, were filled with hot water, ... Which of the following is evidence of energy transfer resulting from the change in the ... cube was monitored for 30 minutes and the results graphed as shown here.
Answer:
Final temperature is 302 K
Explanation:
You can now initial volume with ideal gas law, thus:
V = 
Where:
n are moles: 2 moles
R is gas constant: 0,082 
T is temperature: 300 K
P is pressure: 1 atm
V is volume, with these values: <em>49,2 L</em>
The work in the expansion of the gas, W, is: 1216 J - 34166 J = <em>-32950 J</em>
This work is:
W = P (Vf- Vi)
Where P is constant pressure, 1 atm
And Vf and Vi are final and initial volume in the expansion
-32950 J = -1 atm (Vf-49,2L) × 
Solving: <em>Vf = 49,52 L</em>
Thus, final temperature could be obtained from ideal gas law, again:
T = 
Where:
n are moles: 2 moles
R is gas constant: 0,082 
P is pressure: 1 atm
V is volume: 49,52 L
T is final temperature: <em>302 K</em>
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I hope it helps!