Sulfur is most likely to form covalent bond with oxygen.
Answer:
A
Explanation:
There is a specific tool called an oil drill that drills into the ground and then a pipe sucks the oil up onto a vessle
Answer:
+43.32 kJ
Explanation:
Step 1: Write the thermochemical equation for the decomposition of sodium nitride
2 Na₃N ⇒ N₂ + 6 Na ΔH = +42.7 kJ
Step 2: Calculate the moles corresponding to 168.4 g of Na₃N
The molar mass of Na₃N is 82.98 g/mol.
168.4 g × 1 mol/82.98 g = 2.029 mol
Step 3: Calculate the heat needed for the decomposition of 2.029 moles of Na₃N
According to the thermochemical equation, 42.7 kJ are required for the decomposition of 2 moles of Na₃N. The heat needed for the decomposition of 2.029 moles of Na₃N is:
2.029 mol × 42.7 kJ/2 mol = 43.32 kJ
Abiotic
is the answer for you
They help bring about chemical reactions. This is because enzymes act as catalysts, lowering the activation energy required for a chemical reaction to initiate. It is in this way that they bring about chemical reactions.