What is PO3 compound name?

Answer:

Explanation:When silver Ag metal is added to copper sulphate CuSO4 solution, no reaction takes place as silver is less reactive than that of copper and cannot displace copper from its solution. Hence, when a piece of silver metal is added to copper sulphate solution there will be no reaction.

Answer:

There will be no reaction

Explanation:

Therefore, when silver Ag metal is added to copper sulphate CuSO4 solution, no reaction takes place as silver is less reactive than that of copper and cannot displace copper from its solution. Hence, when a piece of silver metal is added to copper sulphate solution there will be no reaction.

Answer: Yes, light can bend around corners. ... The ability of light to bend around corners is also known as "diffraction". There are two mechanisms that cause light to bend around corners. Light waves indeed bend around corners because of diffraction, as shown in this illustration.

Explanation:

Answer:

i believe the answer is b

Explanation:

a gradual increase in the overall temperature of the earth's atmosphere generally attributed to the greenhouse effect caused by increased levels of carbon dioxide, chlorofluorocarbons, and other pollutants.

Answer:

Q = 2997.69 J

Explanation:

Given that,

The mass of ice, m = 15.6 grams

The temperature increases from -8.76 degrees Celsius to 85.9 degrees Celsius.

The specifc heat of ice is 2.03 J/g°C

We need to find the amount of energy required. The formula for energy required is given by :

[tex]Q=mc\Delta T\\\\=15.6\times 2.03\times (85.9-(-8.76))\\\\=2997.69\ J[/tex]

So, the required heat is equal to 2997.69 J.

Answer:

Formula and structure: The chemical formula of calcium chloride is CaCl2, and its molar mass is 110.983 g/mol. It is an ionic compound consisting of the calcium cation (Ca2+) and two chlorine anions (Cl-). The bivalent calcium metal forms an ionic bond with two chlorine atoms, as shown below.

Based on the ionic nature of calcium chloride,  the chemical symbols of the particles found in the calcium chloride crystal is Ca²⁺ and Cl⁻.

Ionic compounds are compounds which are composed of ions.

Calcium chloride is an ionic compound composed of the ions, calcium ions and chloride ions.

The chemical formula of calcium chloride is CaCl2, and its molar mass is 110.983 g/mol.

The symbol for  calcium ion is Ca²⁺

The symbol for chloride ion is Cl⁻.

Therefore, the chemical symbols of the particles found in the calcium chloride crystal is Ca²⁺ and Cl⁻.

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Answer:

This is an example of a physical change because the ice cubes began to melt.

This is an example of a physical change because the ice cubes began to melt.

Explanation:

The above is the right answer to the question about the dissolution of the whole mixture mentioned in the excerpts above.

Answer:

Acid is a kind of chemical compound that when dissolved in water gives a solution with H+ ion activity more than purified water. A base is an aqueous substance that donates electrons, accept protons or release hydroxide (OH-) ions. An acid is a proton donor. While a base is a proton acceptor.

Explanation:

Hey mate, here's your answer...

Explanation:

a.Silver chloride

b.zinc Oxide

c.calcium Bromide

d.strontium difluoride

Answer: [tex]Fe^{3+} > Mn^{4+}[/tex] > [tex]V^{3+}[/tex] = [tex]Ni^{2+}[/tex] > [tex]Cu^+[/tex]

Explanation:

Electronic configuration represents the total number of electrons that a neutral element contains. We add all the superscripts to know the number of electrons in an atom.

Fe: 26: [tex]1s^2s^22p^63s^23p^64s^23d^{6}[/tex]

[tex]Fe^{3+}:23:1s^2s^22p^63s^23p^63d^{5}[/tex] : 5 unpaired electrons

Mn: 25: [tex]1s^2s^22p^63s^23p^64s^23d^{5}[/tex]

[tex]Mn^{4+}:23:1s^2s^22p^63s^23p^63d^{3}[/tex] : 3 unpaired electrons

V: 23: [tex]1s^2s^22p^63s^23p^64s^23d^{3}[/tex]

[tex]V^{3+}:23:1s^2s^22p^63s^23p^63d^{2}[/tex] : 2 unpaired electrons

Ni : 28 : [tex]1s^2s^22p^63s^23p^64s^23d^{8}[/tex]

[tex]Ni^{2+}:23:1s^2s^22p^63s^23p^63d^{8}[/tex]: 2 unpiared electrons

Cu : 29 : [tex]1s^2s^22p^63s^23p^64s^13d^{10}[/tex]

[tex]Cu^{+}:23:1s^2s^22p^63s^23p^63d^{10}[/tex]: 0 unpaired electrons

Thus the order of decreasing number of unpaired electrons:

[tex]Fe^{3+} > Mn^{4+}[/tex] > [tex]V^{3+}[/tex] = [tex]Ni^{2+}[/tex] > [tex]Cu^+[/tex]

Answer:

Selenium Dioxide: Se[tex]O_{2}[/tex]

Explanation:

This is a compound that contains both Selenium and Oxygen.

Bonjour!

At all four positions, the northern end of Earth's axis points towards the Polaris. I will enter a diagram below to help you visualize!

Au revoir, hope this helped you!

Sincerely- frenchsmartie

Answer:

Rocks get older as we go away from the Mid Atlantic Ridge  towards the continents

Explanation:

As the plates move away from each other, new ocean lithosphere is created at the ridge. This also widens the ocean basin and leads to sea floor spreading.

The rock of the ocean floor are symmetrically aligned and they get become older as they move away from the crest of the ridge.

Thus, rocks get older as we go away from the Mid Atlantic Ridge  towards the continents

Answer:

44.2 L

Explanation:

Use Charles Law:

[tex]\frac{V1}{T1} =\frac{V2}{T2}[/tex]

We have all the values except for V₂; this is what we're solving for. Input the values:

[tex]\frac{56 L}{346K} =\frac{V2}{273K}[/tex]   -  make sure that your temperature is in Kelvin

From here, we need to get V₂ by itself. To do this, multiply by 273 on both sides:

[tex]\frac{56*273}{346} = V2[/tex]

Therefore, V₂ = 44.2 L

It's also helpful to know that temperature and volume are linearly related. So, when temperature drops, so will volume and vice versa.

Answer:

Florida

Explanation:

Directly north of Cuba is the rural bar fight of a state, Florida

Answer:

[tex]\boxed {\boxed {\sf 129.267 \ g \ C_6H_{14}}}[/tex]

Explanation:

To convert from moles to mass, the molar mass is used. This is the grams per mole for a substance.

The values are found on the Periodic Table. They are the same as the atomic masses, but the units are grams per mole instead.

We are given this compound: C₆H₁₄. Look up the molar masses for the individual elements first: carbon and hydrogen.

Check the subscripts, which tell us the number of atoms per molecule.  There are 6 carbon atoms and 14 hydrogen atoms. Multiply the molar mass by that number, then add them together.

Use the molar mass as a ratio.

[tex]\frac {86.178 \ g \ C_6H_{14}}{1 \ mol \ C_6H_{14}}}[/tex]

Multiply by 1.5 moles.

[tex]1.5 \ mol \ C_6H_{14} \times \frac {86.178 \ g \ C_6H_{14}}{1 \ mol \ C_6H_{14}}}[/tex]

The moles of C₆H₁₄ will cancel each other out.

[tex]1.5 \times \frac {86.178 \ g \ C_6H_{14}}{1}}[/tex]

[tex]1.5 \times {86.178 \ g \ C_6H_{14}}[/tex]

[tex]129.267 \ g \ C_6H_{14}[/tex]

1.5 moles of C₆H₁₄ is equal to 129.267 grams of C₆H₁₄

Answer:

3.64M is the molar concentration of the solution

Explanation:

Molarity (Molar concentration, M) is an unit of concentration widely used in chemistry defined as the ratio between the moles of solute (In this case, KCl) and the volume of the solution in liters.

As you can see, the moles of KCl are 2.21 mol, and the volume of the solution is 0.6068L. The molarity is:

2.21mol / 0.6068L =

Answer:

See explanation

Explanation:

The valence shell electron pair repulsion theory holds that the number of electron pairs on the outermost shell of the central atom in a molecule determines the shape of the molecule.

In accordance with this theory, the electron domain geometry of a molecule having 4 outer atoms and 2 lone pairs on the central atom is based on an octahedron. The molecular geometry of this molecule is square planar with a bond angle of 90 degrees.

Answer:

nah you good

Explanation:

it's perfect don't doubt yourself

Answer:

The daily change from daylight to darkness is caused by:the rotation of the Earth on its axis. If the Earth did not rotate as it does, the day/night cycle would be very different or possibly even nonexistent.

Explanation:

Answer:

Option B, In a space-filling model of a molecule, the radii of the spheres in a space-filling model are proportional in size to the radii of the atoms

they represent

Explanation:

In a space-filling model of a molecule, atoms are represented as sphere. The radius of the sphere is equal to the radius of the atom and the distance between the center of one sphere to the center of other represents the distance between the atomic nuclei

Option B is correct

Option A is incorrect, as dots are used in the space filling model to represent the atoms

Option C is incorrect because radii of atom do not represents the length of the bonds in a space-  filling model

Matter cannot be created or destroyed in chemical reactions. This is the law of conservation of mass. In every chemical reaction, the same mass of matter must end up in the products as started in the reactants. Balanced chemical equations show that mass is conserved in chemical reactions.

Matter cannot be created or destroyed in chemical reactions. This is the law of conservation of mass. In every chemical reaction, the same mass of matter must end up in the products as started in the reactants. Balanced chemical equations show that mass is conserved in chemical reactions

In a dry cell the electrolyte is a paste.

Minerals with an electric charge called electrolytes could be found in human blood and other bodily fluids. Electrolytes have a variety of effects on how your brains work, including how much water is in your body. The pH balance in the blood (pH) Our muscles work.

The dry-cell battery would be a gadget composed of one or even more electrochemical cells which change electrical energy from chemical energy that has been stored. It has an electrolyte inside of a paste or another moist substance. Zinc anode, as well as carbon cathode, are found inside a central rod of a standard dry cell battery.

Therefore, in a dry cell the electrolyte is a paste.

Hence, the correct answer will be option (B).

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Answer:

Electrons in atoms occupy energy levels, also called electron shells, outside the nucleus . Different shells can hold different maximum numbers of electrons. The electrons in an atom occupy the lowest available energy level first. This is the shell nearest the nucleus.

Explanation:

Answer:

B) CaO(s) + H2O(l) --> Ca(OH)2(aq)

Explanation:

This is the only reaction with a negative enthalpy value. Exothermic reactions have a negative enthalpy.

Answer:

The Answers are B, C, and E.

Explanation:

Fossils of nearly identical species are found on both South America and African continents. Marsupials existed on both North American and Australian continents when these land masses were connected. Areas of subduction often have high seismic activity as one plate moves under another plate. Since the continents were once joined, there is the likelihood that species originated in one location and then spread to other areas as the continents moved is likely. This explains the similarity of fossils or species in very geographically remote areas. The high activity of seismic movement also is best explained by plate movement.

The  statements that supports the theory of plate tectonics are:

According to the question, we are asked to prove the evidence of the plate tectonic theory based on the movement of continental plates across the Earth's surface.

Plate tectonic theory states that there is a detachment of the outer crust of the Earth and they join when the upper part meets the continental plates and diverges across the planet.

Therefore, the statements that support this theory are the facts that:

Therefore, the correct answers are options B, C and E

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