Answer:
Hey
It should be Atomic theory,
First proposed in the 15th centery by Aristotle, it states that all matter is made of <em><u>induvisable particles called atoms...</u></em>
Answer:
Given,
P1=760 torr
T1=21°C
T2=250°C
P2=?
Solution,
According to Gay-Lussac's Law or Third Gas Law,
P1T2=P2T1
760×250=21×P2
P2=9047 torr
9047 is the pressure of the gas at 250 degree Celsius.
<span>If you placed the letter g under a microscope, the image in the field would look completely inverted. So, instead of seeing a regular letter g, it would be inverted both from up to down and from left to right, so when you look at the letter under a microscope, it would no longer look like the letter g, but rather like the number 6. This would happen because of the convex lens which tends to invert, or flip images.</span>
Answer: The millimoles of sodium carbonate the chemist has added to the flask are 256
Explanation:
Molarity is defined as the number of moles dissolved per liter of the solution.
To calculate the number of moles for given molarity, we use the equation:
.....(1)
Molarity of
solution = 1.42 M
Volume of solution = 180.0 mL
Putting values in equation 1, we get:

Thus the millimoles of sodium carbonate the chemist has added to the flask are 256.
Answer:
a change in the level of consumer income
Explanation: