Answer: sunlight, water, air, habitat, and food.
Explanation: All living organisms rely on five fundamental necessities for survival: sunlight, water, air, habitat, and food.
Answer:
During this process, energy is released as a bond is formed.
Explanation:
The elements present on the left side of the reaction equation are known as reactants, while those on the right are called the products.
In this case, N(g) and N(g) are the reactants, and N2(g) along with energy are the products.
Post-reaction, N(g) has vanished and has been replaced by N2(g). It confirms that a bond exists between the two N(g).
Moreover, energy has been released as part of the products (indicated on the right side)
The accurate statement is ''A bond is formed and energy is released''
Response:
9.606 g
Clarification:
Step 1: Write the balanced combustion equation
C₂H₆O(l) + 3 O₂(g) → 2 CO₂(g) + 3 H₂O(g)
Step 2: Determine the moles for 11.27 g of H₂O
The molar mass of H₂O is 18.02 g/mol.
11.27 g × (1 mol/18.02 g) = 0.6254 mol
Step 3: Find the moles of C₂H₆O that produced 0.6254 moles of H₂O
The ratio of C₂H₆O to H₂O is 1:3. Thus, the moles of C₂H₆O are 1/3 × 0.6254 mol = 0.2085 mol
Step 4: Calculate the mass for 0.2085 moles of C₂H₆O
The molar mass of C₂H₆O is 46.07 g/mol.
0.2085 mol × 46.07 g/mol = 9.606 g
The weight of 16.3 moles of nickel amounts to 956.647 g.
Hi,
Due to calcium hydroxide being a strong base, its full dissociation will yield both calcium and hydroxyl ions:
Thus, the concentration of hydroxyl ions mirrors that of the calcium hydroxide, allowing for the calculation of pOH as demonstrated below:
Now, pH relates to pOH as:
Consequently, the final pH is achieved.
Best regards.
