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3 years ago

Coefficients of the correct balanced equation for the reaction, CaCl2 + AgNO3 ⟶ AgCl + Ca(NO3)2.

Chemistry

1 answer:

mote1985 [20]3 years ago

6 0

Answer:

CaCl2 + 2 AgNO3 ---> 2 AgCl + Ca(NO3)2

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Liquid sodium is being considered as an engine coolant. How many grams of liquid sodium (minimum) are needed to absorb 8.60 MJ o

Alecsey [184]

Answer: $64.216\times 10^4grams$ of liquid sodium is required.

Explanation: To calculate the mass of liquid sodium, we use the formula:

$q=nc\Delta T\\q=\frac{m}{M}c\Delta T$

where,

q = heat required, $8.60MJ=8.60\times 10^6J$ (Conversion factor: 1MJ = 1000000J)

m = Mass of liquid sodium, $?g$

M = Molar mass of liquid sodium, $23g/mol$

c = Specific heat capacity, $30.8J/Kmol$

$\Delta T$ = change in temperature, $\Delta T=(510-500)K=10K$ (Conversion factor: 0°C = 273K)

Putting values in above equation, we get:

$8.60\times 10^6J=\frac{m}{23g/mol}\times 30.8J/Kmol\times 10K$

$m=64.216\times 10^4grams$

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3 years ago

Match the acid base pairs by arranging the acid name with the conjugate base formula.

Pavlova-9 [17]

It’s should be the second one

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3 years ago

Electromagnetic waves are not mechanical waves, which means they can travel in a:

Ostrovityanka [42]

Answer:

Electromagnetic waves differ from mechanical waves in that they do not require a medium to propagate. This means that electromagnetic waves can travel not only through air and solid materials, but also through the vacuum of space.

Explanation:

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3 years ago

What is difference between ionic and covalent bond.

Luda [366]

Answer:

The difference between an ionic and covalent bond is that an ionic bond is that an ionic bond is between a nonmetal and a nonmetal and a covalent bond between a metal and a nonmetal.

IONIC BOND:

NM-NM

COVALENT BOND:

[M+][NM-]

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3 years ago

Which of these processes are chemical reaction

natta225 [31]

Answer:

I don't think u finished the question -

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3 years ago