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4 years ago

Under certain conditions the rate of this reaction is zero order in ammonia with a rate constant of 0.0089 M.s^-1:

Chemistry

1 answer:

masya89 [10]4 years ago

5 0

Answer:

Explanation:

The rate of reaction will not depend upon concentration of reactant . It will be always constant and equal to .0089M s⁻¹.

Initial moles of reactant = 400 x 10⁻³ mole in 5 L

molarity = 400 x 10⁻³ /5 M

= 80 x 10⁻³ M .

= .08M

no of moles reacted in 2 s = .0089 x 2

= .0178 M

concentration left = .08 - .0178 M

= .0622 M .

No of moles left in 5 L

= 5 x .0622 = .31 moles .

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During the formation of the compound sodium chloride, the correct symbol and charge for each of the ions must be...

Xelga [282]

Answer : The correct symbol and charge for each of the ions must be $Na^{+1}$ and $Cl^{-1}$ .

Explanation :

Covalent compound : It is defined as the compound which is formed by the sharing of electrons between the atoms forming a compound.

The covalent compound are usually formed when two non-metals react.

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.

As we know that the sodium chloride is an ionic compound in which sodium is an alkali metal and has one valence electron and chlorine is a non-metal and has 7 valence electrons.

When sodium atom donates an electron to a chlorine atom then it forms an ionic compound that is sodium chloride (NaCl) and the resulting positive ion $Na^{+1}$ and negative ion $Cl^{-1}$ form a stable ionic compound.

Hence, the correct symbol and charge for each of the ions must be $Na^{+1}$ and $Cl^{-1}$ .

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3 years ago

D. 100 mph

Andrej [43]

Answer:

The answer is c

Explanation:

200 divided by 100 is 2 and you can check that by multiplying 2 by 100.

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3 years ago

Which two properties are characterized of ionic compounds

djverab [1.8K]

They have high melting and boiling points and are hard and brittle

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3 years ago

Someone explain it plz

timofeeve [1]

Answer:

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2). 1 mole of carbon is burnt in 16g of dioxygen

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CO2 (Dioxygen is limiting reagent)

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Answer:

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