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the reactants used were vs the reactants used are

Both phrases are correct, but they are used in different contexts. "The reactants used were" is used when referring to past actions or events, while "the reactants used are" is used when referring to present or ongoing actions or events.

Last updated: March 25, 2024 • 590 views

the reactants used were

This phrase is correct when referring to past actions or events.

This phrase is used to describe reactants that were used in the past.

Examples:

  • The reactants used were carefully measured before the experiment.
  • The reactants used were of high purity.
  • 3:The gaseous reactants used in the out-of-pack process are produced using the same basic reactions and parameters as the pack cementation process, except that the substrate to be coated is not in contact with the powder mixture.
  • The gaseous reactants used in the out-of-pack process are produced using the same basic reactions and parameters as the pack cementation process, except that the substrate to be coated is not in contact with the powder mixture.
  • gaseous reactants used in the out-of-pack process are produced using the same basic reactions and parameters as the pack cementation process, except that the substrate to be coated is not in contact with the powder mixture.
  • The reactant core is what allows this to happen...
  • Thus the validity of the Bronsted-Debye-Huckel equation at low ionic strength has been amply tested, and the charges on the reactant ions are well known, if their reagents are properly characterised.
  • The discs you used were prototypes.
  • The methods he used were exactly the same.
  • The components he used were completely different.
  • However, the data used were based on the independent report cited in recital 87.
  • The resources used were wasted and poor countries were not helped.
  • The words I used were very specific.
  • The French authorities indicate that the premises used were partly dilapidated.
  • The remaining programmes found to be used were reported by the co-operating exporting producers.
  • Well, the last two places her phone was used were Grayson manor and then The Stowaway the next day...
  • The components he used were completely different.
  • The GDP per capita figures used were those available on 26 March 1999, which covered the years 1994 to 1996.
  • Most of the animals I used were abandoned by a Mexican circus... or came from the private zoo of a famous pop star.
  • The surgical instruments used were wiped clean,
  • It is believed that the guns that they used were all legally purchased at stores and gun shows.
  • The concentration of table wines must take place in the wine-growing zone where the fresh grapes used were harvested.

Alternatives:

  • The reactants that were used
  • The used reactants were
  • The reactants that were utilized
  • The utilized reactants were
  • The reactants that were employed

the reactants used are

This phrase is correct when referring to present or ongoing actions or events.

This phrase is used to describe reactants that are currently being used or are still relevant.

Examples:

  • The reactants used are essential for the reaction to proceed.
  • The reactants used are being monitored closely.
  • 3:The gaseous reactants used in the out-of-pack process are produced using the same basic reactions and parameters as the pack cementation process, except that the substrate to be coated is not in contact with the powder mixture.
  • The gaseous reactants used in the out-of-pack process are produced using the same basic reactions and parameters as the pack cementation process, except that the substrate to be coated is not in contact with the powder mixture.
  • gaseous reactants used in the out-of-pack process are produced using the same basic reactions and parameters as the pack cementation process, except that the substrate to be coated is not in contact with the powder mixture.
  • The reactant core is what allows this to happen...
  • Thus the validity of the Bronsted-Debye-Huckel equation at low ionic strength has been amply tested, and the charges on the reactant ions are well known, if their reagents are properly characterised.
  • Currently the biofuels most used are bioethanol and biodiesel.
  • Definitions used are given in Appendix 1.
  • Among the instruments used are public aid and subsidies and funding (cheap bank loans).
  • The main additives used are nitrite curing salt, with ascorbic acid used as a further reddening agent.
  • The main raw spices used are salt and finely-ground pepper mixed in.
  • Many of the arguments used are not foreseen in ACTA.
  • The magics I used are very powerful.
  • Tools and techniques being used are all traditional
  • The means we used are no longer sufficient.
  • Definitions of the main competences used are set out in Annex.
  • The varieties used are marbot, franquette and corne.
  • The calibration methods to be used are described in this appendix.
  • The segment codes to be used are those shown in Annex I.
  • For each topic the types of instruments to be used are indicated.
  • The neutralisation processes currently used are staining, chemical destruction and pyrotechnical destruction.

Alternatives:

  • The reactants that are used
  • The used reactants are
  • The reactants that are utilized
  • The utilized reactants are
  • The reactants that are employed

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