was formed after the reaction vs is formed after the reaction

Both phrases are correct, but they are used in different contexts. 'Was formed after the reaction' is used when referring to a past event, while 'is formed after the reaction' is used when talking about a general truth or a process that happens regularly.

Last updated: April 01, 2024 • 500 views

was formed after the reaction

This phrase is correct when referring to a past event.

This phrase is used to describe something that took place after a specific reaction occurred in the past.

Examples:

The compound was formed after the reaction took place.
The new species was formed after the volcanic eruption.

Show examples from the web [+]

Te present-day town square was formed after the castle was destroyed in 1808.
evidence that the reaction products of the contaminant, formed after the performance of the detoxification process, do not endanger animal and public health and the environment;
By the way: each crater in the field, which was formed after the impact of air bomb during the World War, created in the field highly accurate circular crater.
His political program was formed after the model of English politician and philosopher John Stewart Mill, whose book "On Freedom" he translated into Serbian in early 1868 and printed it in Vienna with his own preface.
The largest, deepest mountain lake (about 14 meters) in the morainic hills of the Lake Garda area, Lake Frassino was formed after the glacier of the Quarternary Era (Middle Riss) slowly withdrew.
This obliges us to support the legally elected government, which was formed after the last elections in accordance with constitutional requirements, and which today is the target of attacks and threats.
An interim government was formed after Ben Ali fled, but the political and economic situation remain unstable.
A revised line-up of Il Giro Strano was formed after Corte dei Miracoli disbanded in 1976. This new group was rather commercial and had little in common with the original band, lasting around two years.
People think these holes were all formed after the last ice age.
This system allows to eliminate the excess material formed after the welding of the profile.
The planets that have been found... must have formed after the supernova explosion.
SIEF A forum, formed after the pre-registration phase, to share data on a given phase-in substance.
The inner pit with the new lava lake formed after the 2002 lateral eruption (fisheye lens).
After the Little Bang, mass was formed.
Even though a new government has been formed after the recent parliamentary elections, responsibility for environmental matters remains with the combined Ministry for the Environment, Physical Planning and Public Works.
A positive signal today will give the new Slovenian Government which is to be formed after the 10 November elections even more encouragement to meet future challenges, especially in the framework of the national accession strategy, with equal success.
5. This Article shall apply mutatis mutandis to undertakings formed after the date of notification of this Directive which take over business already conducted on that date by a legally distinct body.
The European air transport sector was made to suffer disruptions for over a week as a result of the cloud of ash formed after the volcanic eruption in Iceland.
The company has expressed the auspice that the new Greek government, that he will be formed after the elections of next Sunday, resolves the problem in its entirety.
When a Premonstratensian left the monastery to follow the Czech National Church formed after the separation from Rome which had just occurred, Jakob Kern discovered his vocation in this sad event.

Alternatives:

had been formed after the reaction
had formed after the reaction
was created after the reaction
came into existence after the reaction
emerged after the reaction

is formed after the reaction

This phrase is correct when talking about a general truth or a process that happens regularly.

This phrase is used to describe a general truth or a process that occurs regularly after a reaction takes place.

Examples:

A precipitate is formed after the reaction is complete.
A new compound is formed after the chemical reaction.

Show examples from the web [+]

evidence that the reaction products of the contaminant, formed after the performance of the detoxification process, do not endanger animal and public health and the environment;
Te present-day town square was formed after the castle was destroyed in 1808.
People think these holes were all formed after the last ice age.
This system allows to eliminate the excess material formed after the welding of the profile.
The planets that have been found... must have formed after the supernova explosion.
SIEF A forum, formed after the pre-registration phase, to share data on a given phase-in substance.
The inner pit with the new lava lake formed after the 2002 lateral eruption (fisheye lens).
The Ordinary General Council of the Secretariat of the Synod of Bishops is formed after each Ordinary General Assembly of the Synod of Bishops.
Even though a new government has been formed after the recent parliamentary elections, responsibility for environmental matters remains with the combined Ministry for the Environment, Physical Planning and Public Works.
A positive signal today will give the new Slovenian Government which is to be formed after the 10 November elections even more encouragement to meet future challenges, especially in the framework of the national accession strategy, with equal success.
5. This Article shall apply mutatis mutandis to undertakings formed after the date of notification of this Directive which take over business already conducted on that date by a legally distinct body.
The European air transport sector was made to suffer disruptions for over a week as a result of the cloud of ash formed after the volcanic eruption in Iceland.
The company has expressed the auspice that the new Greek government, that he will be formed after the elections of next Sunday, resolves the problem in its entirety.
When a Premonstratensian left the monastery to follow the Czech National Church formed after the separation from Rome which had just occurred, Jakob Kern discovered his vocation in this sad event.
After the River bets are placed, the highest five-card poker hand is formed from each player's cards.
And Ghiberti declared: "If points placed one after the other are joined, a line is formed".
After the new government is formed, an IMF delegation will visit Belgrade, but it is hard to expect that before July.
Undertakings formed after the dates referred to in Article 18(3) should not be authorised to carry on life assurance and non-life insurance activities simultaneously.
By the way: each crater in the field, which was formed after the impact of air bomb during the World War, created in the field highly accurate circular crater.
Beyond the museum an interesting element is the Covolo: a huge well, 83 metres deep and very charming, formed after the collapse of a cavern whose calcareous rocks were eroded by water: a typical karst phenomenon.

Alternatives:

is created after the reaction
comes into existence after the reaction
emerges after the reaction
takes shape after the reaction
develops after the reaction

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was formed after the reaction vs is formed after the reaction