What kind of gas is the best chance for inflating a balloon that must remain inflated for a long period of time?

A sample of an unknown liquid has a volume of 30.0 mL and a mass of 6g. What is its density?

A4 L sample of gas is heated from 20 K to 200 K. What will its final volume be? A. 40 L B. 0.4 L C. 200L D. 180 L E. 20L

What is the difference between a "characteristic" and a "trait"? Give an example of each.

How many grams of hydrogen are in 46 g of CH4OH? Answer is 6.97

A cylinder has a height of 5.3 cm and a diameter of 3.0 cm. What is its volume? (Hint: Volume of a cylinder = r2h) 25.0 cm3 66.2 cm3 149.9 cm3 37.5 cm3

What best describes the bonding in a water molecule? An oxygen atom shares an electron pair with each H atom. An oxygen atom shares a single electron with each H atom. An oxygen atom receives an electron from each H atom.

What does the mass number tell us?

How is shielding effect related to atomic radius?

Nyatakan tiga aktiviti kerja yang melibatkan proses pengurusan projek reka bentuk.

Which technology works in conjunction with electronic collars to enable scientists to track endangered animals?