The density of a gas is 1. 43 g/l at a temperature of 23 ∘c and a pressure of 0. 789 atm. Calculate the molar mass of the gas.

If (a, b) is the solution to the system of equations shown above, and a and b are integers, then what is the value of a+b?

Who can you think of that has an a in their first name and a b in their last name?

Snakes, dogs, and humans have a vertebral column. snakes and dogs have tails, and humans have vestigial tailbones. dogs and humans have limbs, but snakes do not. most reptiles lay eggs, but a few give birth to live young. what do these structures suggest about the evolutionary pattern between the three organisms? 1. snakes and dogs are more closely related than snakes and humans. 2. snakes and humans are more closely related than humans and dogs. 3. dogs and humans are more closely related than snakes and humans. 4. dogs, snakes, and humans share a common ancestor. 5. the early ancestor of snakes and dogs is the same, and the early ancestor of humans is different.