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Monica [59]
4 years ago
14

In a first-order reaction, how does the rate change if the concentration of the reactant decreases to one-third its original val

ue?
Chemistry
2 answers:
garik1379 [7]4 years ago
3 0
The rate decreases by a factor of one third 
podryga [215]4 years ago
3 0
Changes at the rate of 3 or the third rate
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When ethane (C2H6) burns, it produces carbon dioxide and water:
Hatshy [7]
When 2 moles burn 6 moles of O2 is produced !

so for 16 moles , (6/2)×16= 48 moles will be produced !

so answer is A , 48 moles !
6 0
4 years ago
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Describe how to make a buffer solution using a strong base and one other reagent.
svet-max [94.6K]
A buffer is a solution of weak acid and conjugate base or weak base and conjugate acid used to resist pH change with added solute. <span />
4 0
3 years ago
What is the net ionic equation of the reaction of mgcl2 with naoh?
AveGali [126]

Answer:

The net ionic equation will be MgCl₂ + 2  NaOH → Mg(OH)₂ + 2 NaCl

Explanation:

Ionization of MgCl₂ is as follows

MgCl₂  → Mg²⁺ + 2 Cl⁻

Ionization of NaOH is as follows

NaOH → Na⁺ + OH⁻

It  is a one type of substitution reaction where OH⁻ combined with  Mg²⁺ to give magnesium hydroxide .

 On the other hand Cl⁻ combined with Na⁺ to give sodium chloride as product.

Using proper stoichiometry to balanced the number of atoms in both side .

7 0
3 years ago
A balanced equation for the dissociation of KI
Ann [662]

Answer:

The balanced equation for the dissociation of KI is

KI →  K⁺ + I⁻

Explanation:

KI is the potassium iodide.

K⁺ comes from the KOH, a strong base, so the cation is the conjugate weak acid and in water it does not react.

I⁻ comes from HI, a strong acid, so the anion is the conjugate weak base and in water it does not react.

K⁻  + H₂O ← KOH + H⁺

I⁻ + H₂O ← HI + OH⁻

That's why the arrow in the reaction is in the opposite direction.

3 0
3 years ago
Elements in group 16 want to bond with elements in group ___.
Trava [24]

Answer:

Two

Explanation:

Elements in group 16 wants to bond with elements in group IIA, the group of alkaline earth metals.

  • The bonding will make it easier for them complete their octet.
  • Elements in group 16 has 6 valence electrons.
  • To have a complete octet, they require 2 more electrons.
  • Group II elements are willing donors as they are metals.
  • For Group II elements to fill their octets, they must lose two electrons.
  • So the willingness of group II elements to lose two electrons and the readiness for group 16 elements to gain the electrons makes the desire one another.
5 0
3 years ago
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