The amount of oxygen that are produced when 1.06 grams of potassium chlorate decompose completely is 0.64 grams.
<h3>What is the relation between mass & moles?</h3>
Relation between the mass and moles of any substance will be represented as:
- n = W/M, where
- W = given mass
- M = molar mass
Moles of potassium chlorate = 1.66g / 122.5g/mol = 0.0135mole
Given chemical reaction is:
2KClO₃ → 2KCl + 3O₂
From the stoichiometry of the reaction, it is clear that:
2 moles of KClO₃ = produces 3 moles of O₂
0.0135 moles of KClO₃ = produces (3/2)(0.0135)=0.02 moles of O₂
Mass of oxygen = (0.02mol)(32g/mol) = 0.64 g
Hence produced mass of oxygen is 0.64 grams.
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4.92 grams / 6 mL = .82 grams / mL
<span>(A) 0.82 g/mL</span>
Answer:
YES
Explanation:
the main reason why bonds form is because the elements wants to be more stable so in a covalent bond the electrons are shared between two elements so they can fulfill or at least "feel" like they have fulfilled there outer shell.
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The momentum of the projectile is 6.8 * 10⁵ kgm/s
<h3>
Momentum and projectiles</h3>
Momentum of an object is the product of the mass of that object and its velocity.
where m is mass of object
v is velocity of object
A projectile is an object launched into space and allowed to fall freely under the force of gravity.
The momentum of a projectile is conserved in the horizontal direction since no net force acts on the projectile in the horizontal direction.
using the formula for momentum;
p = m*v
Assuming the mass of the projectile to be 800 kg
Velocity of the projectile = 850 m/s
p = 800 kg * 850 m/s
p = 6.8 * 10⁵ kgm/s
Therefore, the momentum of the projectile is 6.8 * 10⁵ kgm/s
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