Equation:
C2H2 + O2 -> CO2 + H2O
Balanced using given coefficients: 2, 3, 4, 5
*Remember: these numbers can be used more than once (as stated in the question)
2 C2H2 + 5 O2 -> 4 CO2 + 2 H2O
The relationship between acceleration due to gravity (g), mass of earth (M) and the radius of earth (R) is .
<h3>What is weight of an object?</h3>
The weight of an object is determined as the product of the object's mass and acceleration due to gravity.
F = mg
<h3>The gravitational force on objects in the universe</h3>
The gravitational force between two objects in the universe is directly proportional to the product of mass of the objects and inversely proportional to the square of the distance between the objects.
where;
M is the mass of the earth
R is the radius of the earth
Thus, the relationship between acceleration due to gravity (g), mass of earth (M) and the radius of earth (R) is .
Learn more about Newton's gravitational law here: brainly.com/question/9373839
Answer:
Explanation:
Since this problem is incomplete, let us give a simple explanation to solve it.
In any reaction, we always have reactants that are in short supply and those that are in excess.
A reactant in short supply in a reaction is called the limiting reagent. This reactant will usually determine the extent of the reaction. When it is used up, the reaction will stop and will not proceed further.
To solve for the limiting reagent, convert the given mass to number of moles. Always work with number of moles.
Then write the balanced reaction equation.
Compare the moles from the balanced equation to that obtained. The reacting specie that is lesser in proportion is the limiting reagent
To solve the second part;
Compare the number of moles of the limiting reactant to that of the product i.e H₂O;
Use this number of moles to find mass;
Mass of H₂O = number of moles x molar mass
Answer:
They need to put a question that has an error in it
Answer:
See the explanation and examples below, please.
Explanation:
To calculate the molar mass of a substance you must have the atomic weights of each component:
Example NaCl ionic compound (sodium chloride, known as table salt)
Molar mass NaCl = Atomic weight Na + Atomic weight Cl = 22, 98 gr + 35, 45gr = 58.35 grams / mol
Example covalent compound HCl (hydrochloric acid) = Atomic weight H + Atomic weight Cl = 1, 004gr + 35, 45 gr = 36, 45 grams / mol
In the case of having compound H20 (water), it is calculated:
Molar mass NaCl = 2 x (Atomic weight H) + Atomic weight 0 (the atomic weight of 1 mol of Hydrogen is multiplied by 2)