Is it kinetic or potential energy Or frequency and wavelength
I don’t understand the question
<u>Correct Answer:</u><u> Option (A) </u>
H₂S : SO₂ = 2:2 and,
O₂: H₂O = 3:2
Explanation:
The mole ratio is the ratio of coefficients of the compounds involved in the reaction. <u>R</u><u><em>eactants,</em></u><u> as on the left hand side of the chemical reaction which reach to for</u>m new products.
In the given reaction,
2H₂S + 3O₂ ⇒ 2SO₂ + 2H₂O
<u>The reactants are :</u> H₂S (hydrogen sulphide) & O₂ (oxygen)
<u>The products are :</u> SO₂ (sulphur dioxide) & H₂O (water)
- 2 moles of hydrogen sulphide react with 3 moles of oxygen
- 2 moles of sulphur dioxide & 2 moles of water are produced
Therefore correct option is
H₂S : SO₂ = 2:2 and,
O₂: H₂O = 3:2
Answer:
Explanation:
Convert 55lbs to kg
(55 lb)*(453.6 g/lb) = 24948 g or 249.48 kg
Density of zinc = 7140 kg/m^3
Find the volume occupied by 249.48 kg:
(249.48 kg)/(7140 kg/m^3) = 0.055 m^3
Density of silver = 10,490 kg/m^3
Mass of Ag in 0.055m^3:
(0.055m^3)*(10,490 kg/m^3) = 577 kg
Answer:
To summarise, a parent cell divides by mitosis (doubling the DNA then splitting) and then divides again to have 4 daughter cells with all different DNA in and all with only half the amount of DNA as a normal body cell. This stage is meiosis. They make sperams and eggs which fuse together in fertilisation and once fertilised the cell will divide by mitosis to create embryos and further to grow into a fetus.
