cahmillegwyn2009 cahmillegwyn2009

04-02-2021
Chemistry

contestada

Air contains about 78% nitrogen and 21% oxygen. What can you conclude from this fact? Air is a mixture of at least two gases Air consists of different states of matter Air is a pure substance Air consists of components that are chemically joined

Respuesta :

04-02-2021

Answer:

yes air is a mixture of many gases

Answer Link

Otras preguntas

I need help with number 4, find the area, thank you

If y varies inversely as x^2, and x = 4 while y = 1/4, find x when y = 1.

Arnold wants to see if people who complete his weight-training program see an average change in their percent body fat. To test this claim, he measures the perc

< 2. For the circuit shown in Fig. 5.29 determine (a) the reading on the ammeter, and (b) the value of resistor R [2.5 A, 2.5 S2] 692 А ЗА 532 R A agement Eu

Mason's truck can travel 9 te 12 miles per gallon of gasoline. The gas he uses costs $4.50 to $6.50 a gallon. If he plans to travel 540 miles, what is the most

centroid of triangle with vertices (0,0) ,(3,0) & (0,-3) is……. [ ]a) (1,1) b) (1,-1) c) (-1,1) d) (0,0)

A sample of hydrogen takes up 34.0 dm3 of space when it is under 500.0 kPa of pressure. When the pressure is changed to 340.0 kPa, what is the new volume? dm3 H

When measurements are close to their true values, they are said to be A. accurate B. estimated C. precise D. standardized

Philip Morris has issued bonds that pay semiannually with the following characteristics: Coupon Yield to Maturity Maturity M

20 out of 50 rolls of a number cube resulted in a 2 being rolled.Based on this imformation, if the cube was rolled 220 times,how many rolls of 2 would be expect