What does the . mean in Fe2O3.H2O ???

Answers

Answer 1

Answer: Alright so
The "Fe" is just the symbol for Iron. Due to me not knowing if it is sitting above or below the baseline, but I'll assume it's below. This means that "Fe2" means there are 2 iron atoms.

And then the O3 represents 3 oxygen atoms in the compound.

And then the H2O is just the chemical formula for water, which consists of 2 hydrogen atoms and one oxygen atom.

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A car is traveling at a speed of 95 mi/h. If there are 0.62137 miles (mi) in a kilometer,what is the speed of the car in m/s?

Answers

Answer:

42 m/s

Explanation:

To we convert units for speed we can use dimensional analysis. First thing we do is seperate the measurement into a fraction. After this we can multiply by 1km over 0.62137 miles. We do this so that the miles cancel out.

$(95mi)/(h)$ × $(1km)/(0.62137mi)$ = $(95km)/(0.62137h)$

After this we can use a conversion factor and divide by 3.6.

$(95km)/(0.62137h)$ ÷ 3.6 = 42 m/s

The softest mineral in the Mohs hardness scale is?

Answers

the talc

have a goed day

Which property is a measure of the average kinetic energy of the particles in a sample or matter?(1) mass (2) density (3) pressure (4) temperature

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The temperature of a sample of matter is the macroscopic manifestation
of the average kinetic energy of its constituent particles.

That's choice-(4) .

imagine a computer monitor powered by electricity that has been generated by a wind turbine. Describe the types of energy involved

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The computer monitor powered by electricity that has been generated by a wind turbine involves several types of energy.

The types of energy involved are as follows:

1. Kinetic energy:The blades of the wind turbine rotate and move due to the force of the wind. This motion or movement of the blades is referred to as kinetic energy.

2. Mechanical energy:The kinetic energy of the wind is converted into mechanical energy as the blades of the wind turbine rotate. This mechanical energy is then transferred to a generator which converts it into electrical energy.

3. Electrical energy:The mechanical energy from the wind turbine is converted into electrical energy by the generator. This electrical energy is then transferred to the computer monitor via electrical wires.

4. Potential energy:As the wind turbines blades move, they gain potential energy. The potential energy is the energy that an object has due to its position or condition. The blades of the wind turbine gain potential energy as they move higher and higher due to the wind force. This potential energy is converted into kinetic energy as the blades rotate.

Thus, there are 4 types of energy involved in computer monitor powered by electricity that has been generated by a wind turbine.

Learn more about energy,here:

brainly.com/question/1932868

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Answer:

Kinetic energy!

Explanation:

wind turbines make Kinetic energy!

How are chemical names andformulas related?

Answers

the chemical name tells what formula.

Which statement describes a reversible reaction at equilibrium?(1) The activation energy of the forward reaction must equal the activation energy of the reverse reaction.
(2) The rate of the forward reaction must equal the rate of the reverse reaction.
(3) The concentration of the reactants must equal the concentration of the products.
(4) The potential energy of the reactants must equal the potential energy of the products.

Answers

Answer: The correct answer is Option 2.

Explanation:

Reversible reaction is defined as the reaction in which the products formed react together to give the reactants back. For general reversible chemical equation:

$aA+bB\rightleftharpoons cC+dD$

At equilibrium, the rate of forward reaction is equal to the rate of backward reaction.

Rate of forward reaction: $k[A]^a[B]^b$

Rate of backward reaction: $k[C]^c[D]^d$

At equilibrium, $k[A]^a[B]^b$ = $k[C]^c[D]^d$

Thus, the correct answer is Option 2.

When a reaction has reached Equilibrium, the rate of the forward reaction is equal to that of the backward reaction.

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