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What shape would SeH2 have? Draw the molecule.

Also, if you are good with this kind of thing, please answer my other questions too!​

Answer:

The answer is B. A rolling skateboard slows down because some of its kinetic energy changes to heat.

Explanation:

The law of conservation says energy cant be created or destroyed .Which basically eliminates all of them except b. It can only be transferred

Answer:

b

Explanation:

Answer:

399.88 g/mol

Explanation:

Iron(III) sulfate, is the chemical compound with the formula Fe₂(SO₄)₃. Usually yellow, it is a salt and soluble in water. A variety of hydrates are also known. Solutions are used in dyeing as a mordant, and as a coagulant for industrial wastes.

Answer:

Igneous Rocks: form by crystallizing melted material (magma).

Explanation:

They can form either on the surface (extrusive igneous rocks), or deep in the crust (intrusive or plutonic igneous rocks).

Answer:

1. The chemical formula is determined by first finding the positive charge, which is cation, and then finding the negative charge, which is the anion. The cation is writing first, than the anion.

2.An ionic compound is named first by its cation and then by its anion.

Explanation:

Just did it.

Answer:

visbility if that is an answer

Explanation:

Answer:

hope it helps...

Explanation:

Thermohaline circulation

Deep ocean currents are driven by density and temperature gradients. This thermohaline circulation is also known as the ocean's conveyor belt.

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Answer and explanation:

A) An ideal fuel must:

- easy to transport and storage.

- have a high calorific value.

B) The calorific value for a fuel is the amount of heat - measured in Joules- which is produced during the complete combustion of the fuel. It is expressed in Joules per Kg of fuel (J/kg).

C) From the data:

mass of fuel = 2 kg

heat produced = 48,000 KJ

We calculate the calorific value by dividing the heat produced by the mass of fuel, as follows:

calorific value = heat produced/mass of fuel = (48,000 KJ)/(2 kg)= 24,000 kJ/kg

Since 1 KJ= 1000 J, we can express the calorific value in J/kg as follows:

24,000 kJ/kg x 1000 J/1 kJ = 2.4 x 10⁷ J/kg

Answer:

Iodine has an atomic number of 53

Electronic configuration - 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^6 5s^2  4d^10 5p^5

Noble gas configuration - [kr]4d^10 5s^2 5p^5

Iodine have 7 valence shell electron and 46 inner shell electron in the ground state.

The atomic number of Iodine is 53.

Additionally, the Electronic configuration of Iodine is as follows;

The Noble gas notation for Iodine is;

Ultimately, Iodine is a member of the halogen group of the periodic table and hence, has 7 valence shell electron and 46 inner shell electron in the ground state.

Read more;

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Answer:

Sexual and Asexual Reproduction

Explanation:

LOL

Fe and S are already balanced in this equation

Balanced indicates that the number of elements in question has the same number of atoms both on the left side (the number on the reactants side) and on the right side (the number on the product side)

Even though one of the elements is said to be balanced, the chemical equation as a whole cannot be said to be balanced, because the chemical equation has several components of the constituent elements.

To balance chemical equations, a coefficient in front of the compound is usually added either in the reactants or products

Reaction

FeS₂ + Cl₂ → FeCl₃ + S₂Cl₂

From this equation, it can be shown that: the Fe and S elements are balanced because the numbers are equal both on the left and right, while the Cl elements are not yet balanced

Fe, left=1, right=1 ⇒ balanced

S, left=2, right=1 ⇒ balanced

Cl, left=2, right=5⇒ not balanced

For balanced equations:

2FeS₂ + 5Cl₂ → 2FeCl₃ + 2S₂Cl₂

Answer:

Neutrons are located in the nucleus with protons.

Explanation:

Neutrons are located in the nexus of a snippet along with protons. The nexus is the mediate portion of a snippet that contains the utmost of its body.

Protons convey a good count, while neutrons are neutral and don't convey an electric count. Electrons, on the different side, are located in route around the nexus, enwrapping snap situations or electron coverings.

Neutrons are subatomic patches that are one of the immediate ingredients of infinitesimal capitals. They're generally imported by the logo "n or no". Neutrons don't hold any net electric count companies with them.

They befit, still, own a body that's scarcely lesser in significance than that of a proton. Neutrons and protons are inclusively appertained to as nucleons since they bear analogous proprieties inside the capitals of titles.

Learn more about Neutrons here:

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Answer:

When a boy smells the aroma coming from the pot on the stove is actually detecting the chemicals coming from the air which comes from hot food that dissolves in the mucus present in the nasal cavity that carries tiny hairs made up of the nerve fibers that absorb these chemicals and excite or stimulate the olfactory receptors.

Various types of a distinct aroma or smell lead to a specific combination of the olfactory cells to make a specific smell. These combination patterns transported to the olfactory bulb along axons; a long extended neuron.

The sensory patterns or information encoding the smell of food present in the pot reaches the primary olfactory cortex in the brain, which is present on the anterior surface of the temporal lobe, and decodes accordingly.

Answer:You breath in what you smell and if it smells good or not you usely get up an see what is in the kitchen

Explanation:

Answer:

Sulfur Nitride

Answer:

5.595 g Fe

General Formulas and Concepts:

Chemistry - Stoichiometry

Explanation:

Step 1: Define

16.25 g FeCl₃ (Iron III Chloride)

RxN:   2Fe + 3Cl₂ → 2FeCl₃

Step 2: Identify Conversions

Molar Mass of Fe - 55.85 g/mol

Molar Mass of Cl - 35.45 g/mol

Molar Mass of FeCl₃ - 55.85 + 3(35.45) = 162.2 g/mol

Step 3: Stoichiometry

[tex]16.25 \ g \ FeCl_3(\frac{1 \ mol \ FeCl_3}{162.2 \ g \ FeCl_3} )(\frac{2 \ mol \ Fe}{2 \ mol FeCl_3} )(\frac{55.85 \ g \ Fe}{1 \ mol \ Fe} )[/tex] = 5.59533 g Fe

Step 4: Check

We are given 4 sig figs. Follow sig fig rules and round.

5.59533 g Fe ≈ 5.595 g Fe

Answer:

"After 1 half-life there will be 50% of the original isotope, and 50% of the decay product.

After 2 half-lives there will be 25% of the original isotope, and 75% of the decay product.

After 3 half-lives there will be 12.5% of the original isotope, and 87.5% of the decay product.

After 4 half-lives there will be 6.25% of the original isotope, and 93.75% of the decay product." -Stephen Frantz, Former Director of the Reed College Nuclear Reactor

Explanation:

Answer:

He could separate the mixture through filtration and fractional crystallization. Ethanol can also be added in order to remove salt.

Explanation:

done here u gooooooooo

Explanation:

The atoms of one element differs from the atoms of other elements in terms of the number of protons they contain. This is often taken as the atomic number of such an atom.

II.

It is possible to change the identity of an atom. This is only possible by altering the atomic number of the atom.

Only nuclear reactions have this capability.

When an atom undergoes nuclear reaction that involves change in number of protons, transmutation occurs and a new atom forms.

Answer:

21.9 g C

Explanation:

Fe₂O₃  +  3 C  ⇒  2 Fe  +  3 CO

This is your chemical equation.  

To find the grams of C required, first convert grams of Fe₂O₃ to moles using the molar mass (159.69 g/mol).  

(97.1 g)/(159.69 g/mol) = 0.608 mol Fe₂O₃

Then, use the mole ratio between Fe₂O₃ and C to convert moles of Fe₂O₃ to moles of C.  You can find the mole ratio by looking at the chemical equation.

(0.608 mol Fe₂O₃) × (3 mol Fe₂O₃/1 mol Fe₂O₃) = 1.824 mol C

You can then convert moles of C to grams using the molar mass (12.01 g/mol).

(1.824 mol) × (12.01 g/mol) = 21.9 g

Answer:

N2S2

I just took the quiz and it was right

Answer:

Explanation:

The time taken by the plane to reach its destination can be found by using the formula

[tex]t = \frac{d}{v} \\ [/tex]

d is the distance

v is the velocity

From the question we have

[tex]t = \frac{395000}{4500} = \frac{3950}{45} = \frac{790}{9} \\ = 87.77777...[/tex]

We have the final answer as

Hope this helps you

Answer:

the temperature of the water rises

Explanation:

22.5 < 22.3

Answer:

See explanation

Explanation:

The question is incomplete. However, base on the given information, one likely question could be that, we calculate the the volume of the nitrogen gas after heating it.

So, we have that:

Initial Volume, V1 = 200mL

Initial Temperature, T1 = 24k

Final Temperature, T2 = 47k

To solve the final volume of the gas, we apply the following ideal gas law equation

V1 * T1 = V2 * T2

Substitute values for V1, T1 and T2

200mL * 24K = V2 * 47K

200mL * 24 = V2 * 47

4800mL = 47V2

Solve for V2

V2 = 4800/47

V2 = 102.13 mL ------- Approximated

Hence, the volume of nitrogen gas after heating is 102.13mL

Answer:

3Mg + 2AlCl3 --> 2Al + MgCl2

Answer:

A food chain shows how energy is transferred from one living organism to another via food. ... When these animals eat these plant products, food energy and organic compounds are transferred from the plants to the animals.

Answer:

3

Explanation:

Independent variable

Answer:

False

Explanation:

tides are caused due to the gravitation of moon, they occurred 2 times a day, or takes 6 hours 13 minutes for a ride

Answer:

yeah someone explain

Explanation:

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Answer:

A heat exchanger is device which is designed to transfer heat from one matter to another. In nuclear power plants, these heat exchangers are used to pass heat from primary system to the secondary system. In the process they produce steam from water, they are also called steam generators or pressurized water reactors.

Answer:

Sex cells are different in body cells because the sex cells are eggs while body cells are formed.

Answer:

I don't EXACTLY know but hopefully the description below helps you find the answer!

Ionic bonding is a type of chemical bond in which valence electrons are lost from one atom and gained by another. This exchange results in a more stable, noble gas electronic configuration for both atoms involved. An ionic bond is based on attractive electrostatic forces between two ions of opposite charge.

Explanation: