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Nadya [2.5K]
3 years ago
13

Pleaze help im gonna fail this semester

Chemistry
2 answers:
Shalnov [3]3 years ago
7 0

when hydrogen peroxide mixed with vinegar makes peracetic which is potentially toxic and irritate skin, eyes and respiratory system.

alexandr1967 [171]3 years ago
3 0
Hydrogen peroxide mixed with vinegar makes peracetic acid, which is a toxic gas that irritates the skin and respiratory system
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A solar panel combines multiple photovoltaic cells. Which type of energy is used to power a solar panel?
hoa [83]
A photovoltaic cell is a material that has the ability to convert light into electricity. Many photovoltaic cells are usually combined in order to make a solar panel that can help to power homes. Since light is an electromagnetic wave that can propagate though space and air, it is electromagnetic energy that is used to power a solar cell. 
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3 years ago
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What binary compound would be formed from barium ions and fluoride ions?
LenaWriter [7]
Barium fluoride (BaF2) - Also known as Barium(II) fluoride - because it's a combination of two different kinds of ions (binary = two).
4 0
3 years ago
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CO2 is an element. True False
Reil [10]

Answer:False

Explanation:co2 or carbon dioxide is a  compound not an element, you can even check this on the periodic table

7 0
3 years ago
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What is the net ionic equation for the reaction if any that occurs when aqueous solutions of Na2CO3 and HCL are mixed?
strojnjashka [21]

Answer:

CO₃²⁻(aq)  +  2H⁺(aq) → CO₂ (g)  + H₂O (l)

Explanation:

The balanced reaction between Na2CO3 and HCl is given as;

Na₂CO₃ (aq) + 2 HCl (aq) → 2 NaCl (aq) + CO₂ (g) + H₂O (l)

The next step is o express the species as ions.

The complete ionic equation for the above  reaction would be;

2Na⁺(aq)  + CO₃²⁻(aq)  +  2H⁺(aq)  + 2Cl⁻(aq)   → Na⁺(aq)  + Cl⁻(aq)  + CO₂ (g)  + H₂O (l)

The next step is to cancel out the spectator ion ions; that is the ions that appear in both the reactant and product side unchanged.

The spectator ions are;  Na⁺ and Cl⁻

The net ionic equation is given as;

CO₃²⁻(aq)  +  2H⁺(aq) → CO₂ (g)  + H₂O (l)

7 0
3 years ago
Consider the process of diluting 1.2 M NH4Cl solution to prepare 1.4 L of a 0.25 M NH4Cl solution. Determine if each of the foll
stepan [7]

Answer: True the dilution formula is a balanced of mole of the solute..

Explanation:

M1V1 = M2V2

When M1= 1.2M, M2= 0.25M V2= 1.4L and V1= ?

Then V1= 0.25*1.4/1.2

= 0.29

This indicate that 0.29L of the 1.2M NH4Cl will be dilluted to 0.25M in 1.4L of the solution....

The mole number of the solute remain constant

8 0
3 years ago
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