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3 years ago

What do an electron and neutron have in common?

Chemistry

2 answers:

CaHeK987 [17]3 years ago

7 0

Answer:

each particle exists inside an atom

Explanation:

Komok [63]3 years ago

7 0

Both can be in the atom

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Classify each of the following as a physical or chemical property

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3 years ago

___Al+NaOH=>__Na3AlO3+H2

MaRussiya [10]

Explanation:

2Al + 2NaOH + 6H2O → 2Na[Al(OH)4] + 3H2

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3 years ago

Crack is manufactured by using _________________________ to remove hydrochlorides to create a crystaline form of cocaine that ca

Akimi4 [234]

Answer:Sodium Bicarbonate

Explanation:Crack is manufactured by using Sodium Bicarbonate (NaHCO3) to remove hydrochlorides to create a crystalline form of cocaine that can be smoked.

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3 years ago

The pressure inside a pressure cooker is 2.0 atm. How many minutes will it take to cook 1.0 pound of potatoes in a pressure cook

suter [353]

Answer:

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3 years ago

What is the empirical formula for a compound that contains 10.89% magnesium 31.77% chloride and 57.34% oxygen

Blizzard [7]

Answer: $Mg_{1}Cl_{2}O_{8}$

Explanation:

If percentage are given then we are taking total mass is 100 grams.So, the mass of each element is equal to the percentage given.

Mass of Mg = 10.89 g

Mass of Cl = 31.77 g

Mass of O = 57.34 g

Step 1 : convert given masses into moles.

Moles of Mg= $\frac {\text{ given mass of Mg}}{\text{ molar mass of Mg}}= \frac {10.89g}{24g/mole}=0.45moles$

Moles of Cl = $\frac {\text{ given mass of Cl}}{\text{ molar mass of Cl}}= \frac {31.77g}{35.5g/mole}=0.89moles$

Moles of O = $\frac {\text{ given mass of O}}{\text{ molar mass of O}}=\frac {57.34g}{16g/mole}=3.58moles$

Step 2 : For the mole ratio, divide each value of moles by the smallest number of moles calculated.

For Mg = $\frac {0.45}{0.45}=1$

For Cl = $\frac {0.89}{0.45}=2$

For O= $\frac {3.58}{0.45}=8$

The ratio of Mg :Cl : O= 1 : 2 : 8

Hence the empirical formula is $Mg_{1}Cl_{2}O_{8}$

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3 years ago