What is the medium of the wave shown in the paragraph?

Answer:

1st paragraph:

1.compound 2.physical 3.elements 4.water 5. gas 6.white 7. season 8.ratio 9.formula 10.elements 11.atoms 12.subscript 13.one

2nd paragraph

1.stable 2.many/reactive 3.eight 4.helium 5.seven 6.outer 7.one 8.level 9. compounds 10.reactive 11. seven 12. Eight 13.lose 14.gain 15. Share 16.compounds 17. atoms

Explanation:

I just did the 1st page. Gimme a min and I'll do the second.

Answer:

See note in Explanation

Explanation:

The modern periodic table of the elements is arranged in order of increasing atomic numbers which is also in terms of the number of protons in the nucleus. That is, for any element listed on the periodic table its atomic number equals the number of protons in the nucleus. Thus, the element with 2 protons in its nucleus would be element #2 (Helium), element #3 (Lithium) has 3 protons in its nucleus and element #4 (Beryllium) has an atomic number 4 and contains 4 protons in its nucleus.

Also, this arrangement of elements finds that elements below elements 2, 3 & 4, Neon #10; sodium #11 & magnesium #12 have similar chemical and physical properties as does elements #2, #3 & #4. Such gives rise to the 'Periodic Law' => the chemical and physical properties of the elements is a periodic function of their atomic number (or, number of protons in the nucleus).

Answer:

is there a picture.....????

Answer:

kilograms

Explanation:

hope this helps, pls mark brainliest :D

Answer:kilogram

Explanation:

I got the smarts

Answer:

Pi to 5 decimals is 3.14159-

Brainlist pls!

P.S. It's a repeating number, but you can just put a (-), so that you don't have to type the whole thing out.

Answer:

sorry raaz report mat kerna

points collect kr rehe hai

Answer:

V = 20.1 L

Explanation:

Given data:

Volume of flask = ?

Number of moles of nitrogen gas = 0.730 mol

Pressure = 698 mmHg (698/760 = 0.92 atm)

Temperature = 35.4°C

Solution:

The given problem will be solve by using general gas equation,

PV = nRT

P= Pressure

V = volume

n = number of moles

R = general gas constant = 0.0821 atm.L/ mol.K  

T = temperature in kelvin

Now we will convert the temperature.

35.4+273 = 308.4 K

by putting values,

0.92 atm× V = 0.730 mol ×0.0821 atm.L/ mol.K × 308.4 K

V = 18.48 atm.L / 0.92 atm

V = 20.1 L

Answer: The answer is C- comets!                                                                            

Explanation:  Callisto is composed mainly of rock and water ice, although other ices like ammonia ice and carbon dioxide ice may be present. Water ice occurs at the surface of Callisto so it would be comets.

Explanation:

kind of ion formed (anion or cation) and the size of the ionic charge. ... O-‐2 oxide. S-‐2 sulfide. N-‐3 nitride. P-‐3 phosphide. Table 3.1. Common, simple anions. It is critically important that you distinguish between ...

Ions and Ionic Compounds – Introductory Chemistry – 1st Canadian Edition - BC Open Textbooks

opentextbc.ca › chapter › ions-and-ionic-...

The formula Na 2Cl 2 also has balanced charges, but the convention is to use the lowest ratio of ions, which ... For the ionic compound between magnesium cations (Mg 2+) and oxide anions (O 2−), again we need only ...

[PDF] Tutorial 2 FORMULAS, PERCENTAGE COMPOSITION, AND THE MOLE FORMULAS: A chemical formula shows the elemental composition of a sub

www.eiu.edu › eiuchem › forms › t...

Ba2+ barium. HSO3. – hydrogen sulfite. MnO4. – permanganate. Al3+ aluminum. SO4. 2– sulfate. NO2. – nitrite. Sn2+ tin(II). HSO4. – hydrogen sulfate. NO3. – nitrate. Sn4+ tin(IV). S2O3. 2– thiosulfate. OH– hydroxide.

Symbols and Charges for Monoatomic Ions

www.edu.xunta.es › portal › Nomenclature

Cs+ cesium ion O2- oxide. Be2+ beryllium ion S2- sulfide. Mg2+ magnesium ion Se2- ... one K+ and one Cl¯ are required. The resulting formula is KCl. Example 3: Write the formula from the following name: barium

Barium chloride salts has a 3 to 2 ratio of cations to anions. thus option C is correct.

Barium Chloride an inorganic salt which is composed up of barium cations (Ba2+) and chloride anions (Cl–), otherwise named as  Barium Muriate or Barium dichloride.

It is a white solid , water-soluble, hygroscopic and gives a slight yellow-green color to a flame,  extensively used in the industry mainly The sulfate is used in white paints where as Barium chloride is poisonous in nature.

It is soluble in water which dissociate into barium cations and chloride anions in its dissolved state, However, the solubility of this compound in water is temperature-dependent.

For more details barium chloride,  visit

https://brainly.com/question/20358167

#SPJ2

Answer:

somebody please help her or him please please

Answer:

That's because the glass walls of the greenhouse trap the Sun's heat. The greenhouse effect works much the same way on Earth.

Explanation:

Gases in the atmosphere, such as carbon dioxide, trap heat just like the glass roof of a greenhouse. These heat-trapping gases are called greenhouse gases.

Answer:

See explanation

Explanation:

Dalton's atomic theory furnished us with a basis to discuss the theory of atoms. However, not all his ideas holds up under the scruitiny of morden science.

He postulated that atoms were 'indivisible' the discovery of subatomic particles indeed show that there are smaller particles than atoms.

His postulation that atoms can neither be created nor destroyed does not hold water today because atoms are being created in nuclear reactors.

He said that atoms of all elements are exactly alike. Today we know there are isotopes of elements which are not exactly alike.

We can see that the Dalton's atomic theory did not take cognisance of the important role of subatomic particles in studying the structure of the atom. Modern atomic theory tries to look at the importance of these particles in the understanding the structure of the atom.

Answer:

A option

Explanation:

Because recatants are in solid form having less enetropy and products are liquid form having more entropy

While other options reactants and products are in same phase gas phase having same entropy

The reaction that would result in increased entropy is the combustion reaction;

KNO3(s)--->K+(aq)+NO3-(aq). Option A

This is further explained below

Generally, a combustion reaction is simply a combustion process that occurs when a material combines with oxygen gas, producing energy as light and heat.

In conclusion, the chemical reaction KNO3(s)--->K+(aq)+NO3-(aq) is has all properties of a combustion reaction as the solid reactants gives an aq solution.

Read more about Chemical reaction

https://brainly.com/question/16416932

#SPJ2

Answer:

2.5

Explanation:

Answer:

in copper from different plastics because appliances of codes to power day in wire copper the cover to use to plastic

Answer: Metal atoms lose electrons from their outer shell when they form ions: the ions formed are positive, because they have more protons than electrons.

Answer:

CT Scan

Explanation:

Radiology is a branch of medicine that uses imaging technology to diagnose and treat disease. So, an example of a radiology technology that is useful for viewing tumors is Computed Tomography (CT)Scan. Others include Magnetic resonance imaging (MRI), X-rays etc.

Answer:

17g

Explanation:

Using the relation :

Volume = mass / molar mass

Volume of ammonia = 22.4 litres

Mole of gas at stp :

1 M of NH3 = 22.4 litres

Chemical formula for ammonia = NH3

The molar mass :

NH3 =14 + (1*3) = 14 + 3 = 17

Volume of ammonia = 1 M

Mass = volume * molar mass

Mass = 1 * 17

Mass = 17g

Answer:

Conduction

Convention

Radiation

in that order

Answer:

Conduction

Convention

Radiation

Explanation:

If you need help, ask a parent or teacher. Or yes, one of us can help! Just let us know what you're having trouble with, and we can see how we can help.

Answer:

Elephant Toothpaste

Extra

Make Elephant Toothpaste

Pour 1/2 cup hydrogen peroxide solution, 1/4 cup dishwashing soap, and a few drops of food coloring into the bottle. Swish the bottle around to mix the ingredients. Set the bottle in a sink or outdoors or some other place where you won't mind getting wet foam everywhere.

In a separate container, mix a packet of active yeast with a little warm water. Give the yeast about five minutes to activate before proceeding to the next step.

When you are ready to do the demo, pour the yeast mixture into the bottle. The reaction occurs immediately upon the addition of the yeast.

I don't know if this will help but here you go.

Answer:  the vibration becomes faster

Explanation:

Answer:

- A new substance was formed in the chemical change while no be substance was formed in the physical change

- The chemical change involved a change in chemical composition while the physical change involved no change in chemical composition

Please find the explanation below.

Explanation:

A physical change is a change that does not alter the chemical content of the substances involved, hence, no new substances are produced while a chemical change alters the chemical composition, hence, new substances results.

In this question,

- Water is heated till it forms steam is characterized as a physical change

- Lighted splint is applied to hydrogen gas to produce water in the form of steam is characterized as a chemical change.

- The first process is a PHYSICAL CHANGE because it involved only a change of state i.e. from liquid to gas, hence, no alteration to the chemical composition of the molecule and also no new substance is produced.

- The second process is a CHEMICAL CHANGE because there was a chemical combination of hydrogen gas and the oxygen in the lighted splint to yield water molecules ( a new substance). Therefore, it involved a chemical reaction and formation of a new substance

Answer:

Photosynthesis is the process in which light energy is converted to chemical energy in the form of sugars. In a process driven by light energy, glucose molecules (or other sugars) are constructed from water and carbon dioxide, and oxygen is released as a byproduct.

Explanation:

Answer:

Photosynthesis is the process in which light energy

Explanation:

Protons

Explanation: the atomic number is the same as the number of protons

Answer:Read explanation

Explanation:

A polar molecule has a net dipole as a result of the opposing charges (i.e. having partial positive and partial negative charges) from polar bonds arranged asymmetrically. Water (H2O) is an example of a polar molecule since it has a slight positive charge on one side and a slight negative charge on the other. A non polar substance we be the opposite of what I said

Answer:

1.301 × 10⁻¹² m

Explanation:

Step 1: Given and required data

Step 2: Calculate the wavelength (λ) of the electromagnetic wave

We can calculate the wavelength of the electromagnetic wave using the Planck-Einstein's relation.

E = h × c / λ

λ = h × c / E

λ = (6.626 × 10⁻³⁴ J . s) × (3.00 × 10⁸ m/s) / 1.528 × 10⁻¹³ J

λ = 1.301 × 10⁻¹² m

The wavelength of this wave is equal to: D. [tex]1.301 \times 10^{-12}\;meter[/tex]

Given the following data:

To determine the wavelength of this wave, we would apply Einstein's equation for photon energy:

Mathematically, Einstein's equation for photon energy is given by the formula:

[tex]E=\frac{hc}{\lambda}[/tex]

Where:

Making [tex]\lambda[/tex] the subject of formula, we have:

[tex]\lambda = \frac{hc}{E}[/tex]

Substituting the given parameters into the formula, we have;

[tex]\lambda = \frac{6.626 \times 10^{-34}\; \times \;3.0 \times 10^{8}}{1.528 \times 10^{-13} }\\\\\lambda = \frac{1.99 \times 10^{-25}}{1.528 \times 10^{-13} }\\\\\lambda =1.301 \times 10^{-12}\;meter[/tex]

Read more: https://brainly.com/question/9655595

Answer:

P = 6

O = 15

Explanation:

for the phosphorus you multiply the mole number which number of atom present, same thing applicable to the oxygen atom

Answer:

Explanation:

Sn(WC)2

if it is tungsten carbide this should be correct but there are many versions of carbide

Sn(MC2)2

could also be possible

the 2 next to MC should be a subscript