The volume of water that moves past a point on a river in a given time is called the river’s

1 answer:

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<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>

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The oxidation of magnesium to form magnesium oxide is shown by which balanced chemical equation?

il63 [147K]

magnesium oxide is: MgO (right side)

so the left side is: Mg + O2

for the equation to be balanced there must be two oxygens on both sides

Mg + O2 = 2MgO

but now the magnesium is uneven, so there must be two magnesiums on each side

the answer is: B) 2Mg + O2 = 2MgO

5 0

3 years ago

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25. Compare the compositions of binary ionic and binary molecular compounds. 26. Write the general chemical formula for an acid,

Murljashka [212]

Explanation:

25. Binary ionic compounds: They are known as the compounds which contains a cation formed from a metal and an anion formed from a non-metal or a polyatomic anion. For example : Barium sulfate

Ba : +2 ( metal of group II-A)

$SO_4$ : -2 ( sulfate)

These two ions combine to form a binary ionic compound having formula $BaSO_4$

Binary Molecular compounds: They are known as the compounds which contain two or more non-metals that are bonded covalently. In these compounds, no ions are present because the electrons are shared by the atoms. Examples are: $PCl_3$ : phosphorous trichloride