Answer:
4.22 mol H₂O
Explanation:
Step 1: Write the equation for the synthesis of water
2 H₂ + O₂ ⇒ 2 H₂O
Step 2: Establish the appropriate molar ratio
According to the balanced equation, the molar ratio of O₂ to H₂O is 1:2.
Step 3: Calculate the moles of water produced from 2.11 moles of oxygen
We will use the previously established molar ratio.
2.11 mol O₂ × 2 mol H₂O/1 mol O₂ = 4.22 mol H₂O
Answer:
B They move because of the convection currents in the mantle.
Answer:
C. Fe will stay positive and increase in magnitude.
Explanation:
Coulomb's law states that the force of attraction of repulsion between two charged particles is directly proportional to the magnitude of their charges and inversely proportional to the square of the distance of separation between them.
This means that if the size of the charges are large, the force acting on them will be large as well. Also if the distance between the two charges increases the force decreases. However, the force increases when the distance of separation decreases.
Like charges repel, therefore, two negative charges brought together will repel each other, and the distance between the two charges decreases, the force will increase in magnitude. Forces of repulsion are considered positive, therefore, the force, Fe, will stay positive and increase in magnitude.
