3 years ago

Solid aluminum reacts with solid lodine to. produce solid aluminum iodide.

1 answer:

6 0

Answer:

After the arrow, usually the right. Balance NO+O2--->NO2. 2NO+O2--->2NO2 ... What is the symbol for "solid"? (s). 3Mg3 (PO4)2.

Explanation:

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Calculate the concentration of A bottle of wine contains 12.9% ethanol by volume. The density of ethanol (CH3OH) is 0.789 g/cm e

Delicious77 [7]

Answer:

The mass percentage of the solution is 10.46%.

The molality of the solution is 2.5403 mol/kg.

Explanation:

A bottle of wine contains 12.9% ethanol by volume.

This means that in 100 mL of solution 12.9 L of alcohol is present.

Volume of alcohol = v = 12.9 L

Mass of the ethanol = m

Density of the ethanol ,d= $0.789 g/cm^3=0.789 g/mL$

$1 cm^3=1 mL$

$m=d\times v=0.798 g/ml\times 12.9 mL = 10.1781 g$

Mass of water = M

Volume of water ,V= 100 mL - 12.9 mL = 87.1 mL

Density of water = D=1.00 g/mL

$M=D\times V=1.00 g/ml\times 87.1 mL =87.1 g$

Mass percent

$(w/w)\%=\frac{m}{m+M}\times 100$

$\frac{10.1781 g}{10.1781 g+87.1 g}\times 100=10.46\%$

Molality :

$m=\frac{m}{\text{molar mass of ethanol}\times M(kg)}$

M = 87.1 g = 0.0871 kg (1 kg =1000 g)

$=\frac{10.1781 g}{46 g/mol\times 0.0871 kg}$

$m=2.5403 mol/kg$

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A. Which blood type is universal donor? A,B,AB or O pick

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Answer:

Blood type O is the universal donor.

The Universal donor is the only blood type that can donate blood to any other blood group. The universal recipient is the only blood group that can receive blood from any other blood group.

<u>-TheUnknownScientist</u><u> 72</u>

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Solve the enthalpy of formation NH3(g) -46.11

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I think 43.12 I’m not that good with math

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Which reverse the normal flow of thermal energy

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Heat pumps most do work on a refrigerant in order to reverse the normal flow of thermal energy.

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Calculate the specific heat of glass from the following data. The temperature of a piece of glass with a mass of 65 g increases

Art [367]

Answer:497J/kg/K

Explanation:

Use the equation: Q=mS◇T

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