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Author Archives: Anonymous

Le présent des verbes les plus irréguliers Remplissez les es…

Le présent des verbes les plus irréguliers Remplissez les espaces avec la conjugaison au présent d’un des verbes suivants : aller  avoir  être  faire Sophie guide touristique. Mes parents les réservations par téléphone. Mes amies et moi en vacances ensemble chaque année. Après le vol de Chicago à Paris, le métro dans Paris de l’aéroport à la gare, puis le trajet en train de Paris à Avignon, je crevé(e). Est-ce que tu de Paris à Avignon en train, en taxi, ou en covoiturage ? J’ une réservation pour deux personnes à cet hôtel. Attendez, ils n’ pas encore tous leurs bagages ! 

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For the final sum of 544.26 + 455.64, the number of signific…

For the final sum of 544.26 + 455.64, the number of significant figures is ________.

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What is the identity of element X if the ion X3+ has 10 elec…

What is the identity of element X if the ion X3+ has 10 electrons?

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Which target shows darts that are neither accurate nor preci…

Which target shows darts that are neither accurate nor precise?

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Which of the following is a pure elemental substance?

Which of the following is a pure elemental substance?

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Consider an element which has three naturally occurring isot…

Consider an element which has three naturally occurring isotopes. The isotopic masses and percent abundances are: 27.9769 amu (92.21%), 28.9765 amu (4.69%), and 29.9737 amu (3.10%). What is the average mass? Give your answer to two decimal places.

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Convert [var]x10-9 Mm to mm. Answer to 2 sig figs.

Convert [var]x10-9 Mm to mm. Answer to 2 sig figs.

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Which state of matter is most compressible?

Which state of matter is most compressible?

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Which of the following has more protons than electrons?

Which of the following has more protons than electrons?

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How many protons are found in a Fe3+ ion?

How many protons are found in a Fe3+ ion?

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