Chemistry, 06.05.2020 04:23 micahpauleen748

Which symbol can be used to indicate a chemical reaction that takes place in the presence of a catalyst?
350 degrees Celsius over a right-pointing arrow.
Upper P t over a right-pointing arrow.
0.5 a t m over a right arrow.
Delta over a right arrow.

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Answer from: damonsalvatoreisbae

Upper Pt over a right-pointing arrow.

Explanation:

Which symbol can be used to indicate a chemical reaction that takes place in the presence of a catalyst?

350 degrees Celsius over a right-pointing arrow. NO. This indicates the temperature at which the reaction occurs.Upper Pt over a right-pointing arrow. YES. This indicates that the element platinum (Pt) is being used as a catalyst.0.5 atm over a right arrow. NO. This indicates the pressure at which the reaction occurs.Delta over a right arrow. NO. This indicates that the reaction requires heat to occur.

Answer from: iamhayls

Pt over (→) right pointing arrow

Explanation:

just took test on edge 2021

Answer from: Quest

en el barco… .. ¿donde comes? yo como en el comedor del barco

¿qué estás comiendo? estoy comiendo arroz con pollo.

¿que hay en la mesa? en la mesa hay muchos platos y un bonito juego de cubiertos.

¿qué haces en el club de la juventud? me junto con mis amigos y jugamos cartas hasta tarde.

¿qué haces en la piscina? en la piscina, nado con mis amigos.

¿estabas dormido? no, estaba leyendo una revista.

¿qué ves en el teatro? en el teatro veo una obra de lope de vega.

a que hora vives hoy. this is illogical because it means what time do you live today? it should be: ¿ a qué hora vienes hoy? hoy vengo a las 4 de la tarde.

¿a qué hora en el verano? en el verano vengo más temprano.

¿qué llevas puesto hoy? hoy llevo puesto un polo y unos pantalones negros.

¿qué te pones cuando vas a la escuela? me pongo un uniforme y zapatos negros.

¿a dónde vas hoy? hoy voy al cine.

¿mañana? en el barco. mañana voy al gimnasio.

Answer from: Quest

answer: you could do some invislibe ink.

explanation: i will tell you how to if u answer my question.

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Which symbol can be used to indicate a chemical reaction that takes place in the presence of a catal...

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