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Mazyrski [523]
3 years ago
13

Please answer this question about chemistry ASAP I NEED HELP

Chemistry
1 answer:
vova2212 [387]3 years ago
3 0

Answer:ohhhhhhh I’m confused on this

Explanation:ahhh

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Copper metal reacts with hot concentrated sulfuric acid solution to form aqueous copper(ii) sulfate, sulfur dioxide gas, and wat
Alex777 [14]
The unbalanced chemical equation with the corresponding phase for each substance is shown below: 

Cu₍s₎ + H₂SO₄₍aq₎ → CuSO₄₍aq₎ + SO₂₍g₎ + H₂O₍l₎

The copper metal is solid, the sulfuric acid and copper sulfate are in aqueous solution. Water is in the liquid phase while sulfur dioxide is in the gas phase. 

In order to obtain the balanced equation, we must ensure that the number of atoms present in the reactant side is equal to that in the product side. First, we list the elements involved and count their number on each side.

Reactant           Product
   1             Cu      1
   2              H       2
   1              S       2
   4              O       5

To balance the equation, we need to have 2 moles of H₂SO₄ and 2 moles of H₂O. The balanced chemical equation is then:

Cu₍s₎ + 2H₂SO₄₍aq₎ → CuSO₄₍aq₎ + SO₂₍g₎ + 2H₂O₍l₎

Reactant           Product
   1             Cu      1
   4              H       4
   2              S       2
   8              O       8
3 0
3 years ago
How does the chemical formula for the sulfite ion differ from the chemical formula for the sulfate ion?
VLD [36.1K]

Answer:

Sulfite contains 3 oxygens and sulfate contains 4 oxygens

Explanation:

6 0
3 years ago
If a bag of cement of mass 50 kg is acted upon by a force which produces acceleration 20m/ s calculate the force if you don't kn
dybincka [34]

Answer:

F=1000kg/m/s²

Explanation:

F=ma

F=50×20

F=1000

8 0
3 years ago
Given that the molar mass of NaCl is 58.44 g/mol, Solve for the molarity of a solution that contains 87.75 g of NaCl in 500 mL o
aliina [53]

Molarity is defined as the number of moles of solute per 1 L of solvent.

the mass of NaCl in the solution is 87.75 g

number of moles of NaCl is calculated by dividing mass present by molar mass

number of NaCl moles = 87.75 g / 58.44 g/mol = 1.502 mol

the number of NaCl moles in 500 mL is - 1.502 mol

therefore number of NaCl moles in 1000 mL is - 1.502 mol/ 500 mL x 1000 mL/L = 3.004 mol

molarity of NaCl is - 3.004 M

answer is D. 3.00 M

5 0
3 years ago
Read 2 more answers
What three factors does gravitational potential energy depend upon?
irakobra [83]

Answer: The object's mass, height off the ground, and the strength of gravity :)

8 0
3 years ago
Read 2 more answers
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