Which of these numbers has four significant figures?

Select the right sport or pastime that best fits the description given.

One milliliter is equal to _____.

Complete the sentence with saber or conocer. Aurelio no _______ la respuesta al problema de la clase de matemáticas.

Calculate the number of moles in a 233-gram sample of barium.

Complete the sentence with the appropriate form of the verb in the preterite tense. La familia Gonzales (andar) _______ por el parque la semana pasada. 

Completa las siguientes oraciones con la opción correcta. 1. Para hacer un sadwich necesitas pan, _____ y queso.

Methane can be decomposed into two simpler substances: hydrogen and carbon. Therefore, methane is a(n) _____.

Fill in the blank with the most logical verb in the correct form of the preterite tense. Mis hermanos (jugar) ___________ todo el día en la playa.

How do you feel in the following situations? Choose the right emotion from the list. Tienes un nuevo(a) novio(a)