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3 years ago

Answer ASAP

Chemistry

1 answer:

snow_lady [41]3 years ago

7 0

The complete ionic equation:

Mg (s) + Zn(NO₃)₂ (aq) → Mg(NO₃)₂ (aq) + Zn (s)

Explanation:

We have the following net ionic equation:

Mg (s) + Zn²⁺ (aq) + 2 NO₃⁻ (aq) → Mg²⁺ (aq) + 2 NO₃⁻ (aq) + Zn (s)

The complete ionic equation will be:

Mg (s) + Zn(NO₃)₂ (aq) → Mg(NO₃)₂ (aq) + Zn (s)

Learn more about:

ionic equations

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What is the density of CHCL3 vapor at 1.00atm and 298K?

Advocard [28]

Answer:

4.8 g/mL is the density of chloroform vapor at 1.00 atm and 298 K.

Explanation:

By ideal gas equation:

$PV=nRT$

Number of moles (n)

can be written as: $n=\frac{m}{M}$

where, m = given mass

M = molar mass

$PV=\frac{m}{M}RT\\\\PM=\frac{m}{V}RT$

where,

$\frac{m}{V}=d$ which is known as density of the gas

The relation becomes:

$PM=dRT$ .....(1)

We are given:

M = molar mass of chloroform= 119.5 g/mol

R = Gas constant = $0.0821\text{ L atm }mol^{-1}K^{-1}$

T = temperature of the gas = $298K$

P = pressure of the gas = 1.00 atm

Putting values in equation 1, we get:

$1.00atm\times 119.5g/mol=d\times 0.0821\text{ L atm }mol^{-1}K^{-1}\times 298K\\\\d=4.88g/L$

4.8 g/mL is the density of chloroform vapor at 1.00 atm and 298 K.

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3 years ago

What is the mass number of an atom with 3 protons, 4 neutrons, and 3 electrons?

NISA [10]

Answer

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Explanation:

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3 years ago

Read 2 more answers

Why is the vapor pressure of a warm pale higher than the vapor pressure of a cold lake

levacccp [35]

The vapor pressure of a warm pale higher than the vapor pressure of a cold lake because Warm water evaporates more quickly.

Hence, Option B is correct answer.

<h3>What is Evaporation ? </h3>

The process in which a liquid or solid is converted into vapour is called Evaporation. When water gains the heat energy then it changes in to gas. When the temperature increases it speeds up the rate of evaporation.

The temperature of warm water increases, the kinetic energy of the warm water molecule also increases.

Thus from the above conclusion we can say that The vapour pressure of a warm lake is higher than the vapor pressure of a cold lake because Warm water evaporates more quickly.

Hence, Option B is correct answer.

Learn more about the Evaporation here: brainly.com/question/9339710

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Disclaimer: The question was given incomplete on the portal. Here is the complete questions.

Question: Why is the vapor pressure of a warm lake higher than the vapor pressure of a cold lake?

A. Warm water has a greater heat of vaporization.

B. Warm water evaporates more quickly.

C. Cool water evaporates more quickly.

D. Cool water has a greater heat of vaporization.

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2 years ago

PLEASE HELP IF YOU CAN

Kruka [31]

I'm not sure but for those who can help:

<u>Skeleton equation</u>: It's neutralization because acid+base.

HCl + NaOH => H2O + NaCl

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4 years ago

What occurs to the atoms of reactants in a chemical reaction?

djyliett [7]

Question:

What occurs to the atoms of reactants in a chemical reaction?

Answer:

In a chemical reaction, the atoms and molecules that interact with each other are called reactants. ... No new atoms are created, and no atoms are destroyed. In a chemical reaction, reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products.

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3 years ago