wwwchivova wwwchivova

07-10-2021
Chemistry

contestada

Zn + O2= ZnO

How many moles of zinc are needed to make 500. g of zinc oxide?

Respuesta :

levanquan3330 levanquan3330

09-10-2021

Answer:

5.15 moles

Explanation:

2zn + o2 = 2zno

5.15 2.57 5.15 moles

nzno=500/(16x2+65)= 5.15 moles

-> nzn = 5.15 x 2 ÷ 2 = 5.15 moles

Answer Link

Otras preguntas

Which best describes a challenge in the Middle East resulting from oil production?

An equation is shown below: 3(4x − 2) = 1 Which of the following correctly shows the steps to solve this equation? Step 1: 12x − 2 = 1; Step 2: 12x = 3 Step 1:

A mutual network of caring, interested others is known as __________ support. a. Moral b. Social c. Collective d. Group

Evaluate. 8.76 + (–3.05) a. –11.81 b. –5.71 c. 5.71 d. 11.81

If a poem is being recreated as a sculpture, what would most likely be different in the new medium? A. A sculpted character's physical appearance would be ex

A customers services representative earns $13 an hour and he works 24 hours a week . What is his weekly wage

Write a paragraph (5 sentences) about a past time where you used a computer or talked on the telephone using le passé compose (p.c.) and l’imparfait. Describe

places near the equator are usually warm because

This structure is the physical location at which the coordination of information and resources to support incident management (on-scene operations) activities n

What is an example of Brownian motion in everday life