Hãy nêu ý nghĩa của các công thức hóa học sau:
a. Khí nitơ : N2....
Chemistry, 09.11.2021 23:10 angel20202
Hãy nêu ý nghĩa của các công thức hóa học sau:
a. Khí nitơ : N2.
Answers: 2
Chemistry, 22.06.2019 09:50
Although respiratory organs vary across different organisms, they all contain respiratory surfaces that have a large surface area and are extremely thin. explain why having an extremely thin respiratory surface with a large surface area is advantageous for the process of gas exchange
Answers: 1
Chemistry, 22.06.2019 14:00
8.98 dm3 of hydrogen gas is collected at 38.8 °c. find the volume the gas will occupy at -39.9 °c if the pressure remains constant.
Answers: 3
Chemistry, 22.06.2019 19:00
Imagine that a new planet is discovered with two moons of equal mass: moon a and moon b. the mass of the new planet is greater than the combined mass of its moons. moon a is farther away from the new planet than moon b. what is the planet's gravitational pull on moon a compared to the planet's gravitational pull on moon b? the planet's gravity repels moon a with a greater force than it repels moon b, which is why moon a is farther away. the gravitational pull on moon b is greater than on moon a because moon b is closer to the new planet than moon a. the gravitational pull on moon b is greater than on moon a because moon b is farther away from the new planet than moon a. the gravitational pull on moon a is the same as the gravitational pull on moon b because distance does not affect the planet's gravity.
Answers: 1
Chemistry, 22.06.2019 21:30
Which of the following changes will decrease the total amount of gaseous solute able to be dissolved in a liter of liquid water? (2 points) decreasing temperature decreasing pressure decreasing surface area decreasing solute concentration
Answers: 1
History, 18.09.2019 19:10
Chemistry, 18.09.2019 19:10
Mathematics, 18.09.2019 19:10
Chemistry, 18.09.2019 19:10
History, 18.09.2019 19:10
Mathematics, 18.09.2019 19:10
Mathematics, 18.09.2019 19:20
History, 18.09.2019 19:20