Which formula contains 2 non metals

Considering the definition of alkanes, single bonds are found in an alkane.

Alkanes are a class of hydrocarbons (compounds containing only carbon and hydrogen) that are made up of a variable number of carbon atoms joined together by single bonds. In turn, each carbon atom bonds to hydrogen atoms, which may eventually be replaced by other atoms or functional groups.

In other words, alkanes are open or closed chain molecules that are linked by simple bonds.

Alkanes are saturated hydrocarbons because the bonds between carbon atoms are simple and stable. And as mentioned, the hydrogen atoms bonded to each carbon atom can be replaced by other atoms, such as halogens (fluorine, bromine, chlorine) or various groups or “radicals”. In the latter case, the structure becomes more complex giving rise to branched alkanes.

In summary, single bonds are found in an alkane.

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Answer: C) single only

Explanation:

just got it right

Answer:

the anwer is glycolysis

Answer:

D- They use the exchange rate to convert one's Country's currency to another's

Explanation:

Answer:

D. The pressure of the gas decreases!

Explanation:

According to Boyle's Law, there is an inverse relationship between the volume of a gas and its pressure!

So, if the volume of a gas increases, its pressure will decrease; the same thing will happen if the pressure of the gas increases -- the volume will decrease!

↑P↓V and ↓P↑V    <---- this is what it would look like visually!!

Hope this helps! :)

When the volume of a gas increases then the pressure of the gas decreases.

Ideal gas equation is a hypothesis which tells about the behavior of gas in different conditions and it will be represented as:
PV = nRT

From this equation it is clear that pressure and volume are inversely proportional to each other:
P ∝ 1/V

Means if pressure increases ten volume decreases or if pressure decreases then volume increases.

Hence option (4) is correct.

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Answer:

Magnesium nitride

Explanation:

Answer:

The name of compound 'KF' is, Potassium fluoride.

The name of compound 'Mg₃N₂' is, Magnesium nitride.

Explanation:

Ionic compound : It is defined as the compound which is formed when electron gets transferred from one atom to another atom.

Ionic compound are usually formed when a metal reacts with a non-metal.

The nomenclature of ionic compounds is given by:

1. Positive ion is written first.

2. The negative ion is written next and a suffix is added at the end of the negative ion. The suffix written is '-ide'.

3. In case of transition metals, the oxidation state are written in roman numerals in bracket in-front of positive ions.

(a) KF

KF is an ionic compound because potassium element is a metal and fluorine element is a non-metal. The bond formed between a metal and a non-metal is always ionic in nature.

Thus, the name of compound 'KF' is, Potassium fluoride.

(b) Mg₃N₂

Mg₃N₂ is an ionic compound because magnesium element is a metal and nitrogen element is a non-metal. The bond formed between a metal and a non-metal is always ionic in nature.

Thus, the name of compound 'Mg₃N₂' is, Magnesium nitride.

Completely natural process with almost no harmful side effects

The first quantum number of a 3p₃ electron in phosphorus 1s2, 2s2, 2p6, 3s2, 3p3 is 3.

Quantum numbers are a set of numbers that describe the position and energy of an electron in an atom.

Principal, azimuthal, magnetic, and spin quantum numbers are the four types of quantum numbers.

Thus, the first quantum number of a 3p₃ electron in phosphorus 1s2, 2s2, 2p6, 3s2, 3p3 is 3.

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Answer:

n=3

Explanation:

i just took the test:)

2NaOH(aq) + H2SO4(aq) => Na2SO4(s) + 2H2O(l)

This is a neutralization reaction.

endothermic

requires energy to occure

Answer:

The products are already in the question Hydrogen gas and Magnesium Chloride

Explanation:

2Mg +2HCl₂ = 2MgCl₂ + H₂ balanced equation if you need it

When any metal react with acid then salt and hydrogen gas is formed. Hydrogen gas and Magnesium Chloride are formed when Magnesium is added to dilute hydrochloric acid.

Chemical reaction is a process in which two or more than two molecules collide in right orientation and energy to form a new chemical compound. The mass of the overall reaction should be conserved. There are so many types of chemical reaction reaction like combination reaction, double displacement reaction.

The products are Hydrogen gas and Magnesium Chloride. The balanced equation can be written as

Mg +2HCl[tex]\rightarrow[/tex] MgCl₂ + H₂

This makes bubbles of hydrogen and a colorless solution of magnesium chloride.

Therefore Hydrogen gas and Magnesium Chloride are formed when Magnesium is added to dilute hydrochloric acid.

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Answer:

here hope it helps

Explanation:

covalent bonds

Answer:

34545 J

Explanation:

Applying,

E = mc'+cm(t₂-t₁)+Cm(t₂-t₀).............. Equation 1

Where E = Total energy, m = mass of the ice, c' = latent heat of ice, c = specific heat capacity of ice, t₂ = final temperature, t₁ = initial temperature, C = specific heat capacity of water, t₀ = temperature of ice at 0°C

From the question,

Given: m = 35 g = 0.035 kg, t₁ = -10°C, t₂ = 100°C, t₀ = 0°C

Constant: C = 4200 J/kg.K, c = 2100 J/kg.K, c' = 336000 J/kg

Susbtitute these values into equation 1

E = [336000(0.035)]+[0.035×2100(100+10)]+[4200×0.035(100-0)]

E = 11760+8085+14700

E = 34545 J

Answer:

0.0803g of Na2S are produced

Explanation:

Hydrogen sulfide, H2S, reacts with sodium hydroxide, NaOH, to produce sodium sulfide, Na2S and water.

2NaOH + H2S → 2H2O + Na2S

To solve this question we must find the moles of each reactant. With the chemical quation we can find the limiting reactant. With limiting reactant we can find the moles of Na2S and its mass

Moles NaOH -Molar mass: 40g/mol-

0.0823g * (1mol / 40g) = 0.002058moles

Moles H2S -Molar mass: 34.082g/mol-

2.68g * (1mol / 34.082g) = 0.0786 moles

For a complete reaction of 0.0786 moles of H2S are needed:

0.0786 moles H2S * (2mol NaOH / 1mol H2S) = 0.157 moles NaOH

As there are just 0.002058 moles, NaOH is limiting reactant.

The moles of Na2S produced are:

0.002058moles NaOH * (1mol Na2S / 2mol NaOH) = 0.001029 moles Na2S

Mass Na2S -Molar mass: 78.0452g/mol-

0.001029 moles Na2S * (78.0452g / mol) =

Answer:

C

Explanation:

The phosphate group PO4 is bonded covalently (bond between two non metals). While the sodium being bonded to the phosphorus atom is an ionic bond (bond between a metal and a non metal)

The chemical bonding in sodium phosphate, Na3PO4 is classified as both covalent and ionic. Therefore, option C is correct.

An enduring attraction between atoms or ions known as a chemical bond is what allows molecules and crystals to form. The bond may be created by the sharing of electrons in covalent bonds or by the electrostatic attraction of two oppositely charged ions, as in ionic bonds.

Chemical bonds are formed when the atoms in a compound's molecule are brought together and kept together by a powerful combining force. Ionic and covalent bonds are the two different types of chemical bonds.

Molecules are held together by chemical bonds, which also make transient connections necessary for life. chemical bonds, including as ionic, covalent, and hydrogen bonds, as well as London dispersion forces.

Thus, option C is correct.

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Answer:

the overall charge on the nitride anion is  

( 3 − ) .

N power 3 − → the nitride anion

Answer:

The air that is inside a ship is much less dense than water. That's what keeps it floating

Answer:

B)NaOH(s)

Explanation:

Answer:

Copper oxide + magnesium = copper + magnesium oxide

Explanation:

When copper oxide is heated with magnesium powder, then magnesium oxide and copper are formed.. For example, magnesium is more reactive than copper. ... brown copper coats the surface of the magnesium.

Answer:

jk

Explanation:

Answer:

A. total aumenta

Explanation:

8g + 4.04g = 12.04g

Answer:

34.78% Fe

39.66% Cu

5.48% S

20.07% O

Explanation:

Para resolver esta pregunta debemos hallar la masa de cada átomo en cada mineral. Así, podremos hallar el porcentaje de cada átomo:

Pirita (Fe: 55.845g/mol; S: 32.065g/mol; FeS2: 119.975g/mol)

Masa Fe:

20kg FeS2 * (1*55.845g/mol / 119.975g/mol) = 9.31kg Fe

Masa S:

20kg FeS2 * (2*32.065g/mol / 119.975g/mol) = 10.69kg S

Hemetita (Fe: 55.845g/mol; O: 16g/mol; Fe2O3: 159.688g/mol)

Masa Fe:

70kg Fe2O3 * (2*55.845g/mol / 159.688g/mol) = 48.96kg Fe

Masa O:

70kg Fe2O3 * (3*16g/mol / 159.688g/mol) = 21.04kg O

Calcopirita (Fe: 55.845g/mol; Cu: 63.546g/mol; CuFe2: 175.236 g/mol)

Masa Fe:

15kg CuFe2 * (2*55.845g/mol / 175.236 g/mol) = 9.56kg Fe

Masa Cu:

15kg CuFe2 * (1*63.546g/mol / 175.236 g/mol) = 5.44kg Cu

Tenorita (O: 16g/mol; Cu: 63.546g/mol; CuO: 79.545 g/mol)

Masa O:

90kg CuO * (1*16g/mol / 79.545 g/mol) = 18.10kg O

Masa Cu:

90kg CuO * (1*63.546g/mol / 79.545 g/mol) = 71.90kg Cu

Masa Total: 20kg + 70kg + 15kg + 90kg = 195kg

Porcentaje Hierro:

9.31kg Fe + 48.96kg Fe + 9.56kg Fe / 195kg * 100 =

34.78% Fe

Porcentaje Cobre:

5.44kg Cu + 71.90kg Cu / 195kg * 100 =

39.66% Cu

Porcentaje Azufre:

10.69kg S / 195kg * 100 =

5.48% S

Porcentaje Oxígeno:

21.04kg O + 18.10kg O/ 195kg * 100 =

20.07% O

Answer:

9

Explanation:

pH = -log[H+] = -log(1x10^9) = 9

Answer:

d but I may be wrong

Explanation:

Answer: C. The electrode where reduction occurs.

Answer:

The change in concentration of H+ ions is -9.99×10⁻⁵

Explanation:

When pH rises, we talk about neutralization and, there is a decline in proton's concentration.

pH lower than 7 is acid

pH higher than 7 is basic

Protons are neutralized by hydroxides to make water as this:

H₃O⁺   +  OH⁻  ⇄   H₂O

pH = - log [H₃O⁺]

[H₃O⁺] = 10^-pH

In conclussion: [H₃O⁺]₁ = 10⁻⁴ → 1×10⁻⁴

[H₃O⁺]₂ = 10⁻⁷ → 1×10⁻⁷

1×10⁻⁷- 1×10⁻⁴

The change in concentration of H+ ions is -9.99×10⁻⁵

Answer:

An lonic bond because calcium is transferring Its electrons to the chlorine.

Explanation:

Metals usually form compounds with non-metals through ionic bonding.

Metals are electropositive elements which form ions by the loss of electrons, whereas non-metals are electronegative elements which form ions by the gain of electrons.

Compounds are formed when two or more elements combine together. The formation of compounds involves formation of bonds which may be either ionic or covalent bonds.

The type of bonding that exists between the a metallic calcium atoms and non-metallic chlorine atoms in calcium chloride, CaCl₂, is ionic bonding. In the process of formation of the compound, calcium atoms which have a valency of 2 readily donates their two valence electrons to chlorine atoms to form calcium ions, Ca²+. Each chlorine atoms having a valency of 1 accepts an electron to form chloride ions Cl-. Two chlorine atoms accept the two electrons donated by a calcium ion. Due to strong electrostatic forces of attraction between the calcium ion and the two chloride ions, the ionic compound CaCl₂ is formed.

Answer:

6000 ml

Explanation:

1 liter is a 1000 ml