Answer:
all elements have a different atomic number
Explanation:
Atomic number of element does not affect their reactions with others
The oxidation number of P in Mg3P2 is 3. When writing ionic compounds, you swap the oxidation numbers and add them as the subscript.
<span>The volume of water that moves past a point on a river in a given time is called the river’s DISCHARGE or FLOW RATE. The flow rate is used to measure and study bodies of water to better understand how they work. It is useful in areas such as wastewater treatment. Water flow or velocity typically increases as the the depth or hydraulic radius of the river increases.</span>
Answer:
Q = -897 kJ/mol
Explanation:
From the given information:
The heat released Q = -65.9 kJ
To start with the molar mass of 
= 2 × (molar mass of H) + 2 × (molar mass of O)
= (2 × 1.008) + (2 × 16.0 )
= 34.016 g/mol
However, given that:
mass of 2.50 g
The number of moles of = 
Finally; Using the formula:
Q = -897 kJ/mol
