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3 years ago

5

Magnesium ions carry a 2+ charge and chloride ions carry a 1- charge. what is the chemical formula for the ionic compound magnes

ium chloride?

1 answer:

Rudiy273 years ago

5 0

The ionic compound is MgCl2

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2. A block of aluminum with a mass of 140g is cooled from 98.4oC to 62.2oC with a release of 1137J of heat. From these data, cal

NeTakaya

Q = M * C *ΔT

Q / <span>ΔT = M

</span>Δf - Δi = 98.4ºC - 62.2ºC = 36.2ºC
<span>
C = 1137 J / 140 * 36.2

C = 1137 / 5068

C = 0.224 J/gºC</span>

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3 years ago

Andrej [43]

Answer:

• None of these

Explanation:

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#Rastaman

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2 years ago

If a small pig runs 46 meters in 6 seconds, what is the pig's average speed?

Tamiku [17]

Answer:

the pig's average speed is 7 m/s

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2 years ago

THIS IS A SCIENCE QUESTION

MissTica

Answer:

A

Explanation:

Hot air is less dense therefore it rises. Cold air is more closely packed therefore it is more dense. Less dense things rise while more dense things sink.

4 0

3 years ago

Read 2 more answers

Calculate the volume in liters of a 0.00231M copper(II) fluoride solution that contains 175.g of copper(II) fluoride CuF2. Be su

Free_Kalibri [48]

Answer:

Volume = 746 L

Explanation:

Given that:- Mass of copper(II) fluoride = 175 g

Molar mass of copper(II) fluoride = 101.543 g/mol

The formula for the calculation of moles is shown below:

$moles = \frac{Mass\ taken}{Molar\ mass}$

Thus,

$Moles= \frac{175\ g}{101.543\ g/mol}$

$Moles_{copper(II)\ fluoride}= 1.7234\ mol$

Also,

Considering:

$Molarity=\frac{Moles\ of\ solute}{Volume\ of\ the\ solution}$

So,,

$Volume =\frac{Moles\ of\ solute}{Molarity}$

Given, Molarity = 0.00231 M

So,

$Volume =\frac{1.7234}{0.00231}\ L$

<u>Volume = 746 L</u>

7 0

2 years ago