Nitrogen has two nauturally occurring isotopes n-14 and n-15

Its atomic mass is 14.007 which isotope is abundant

Gabe follows the directions to make chocolate chip cookies for his favorite Chemistry teacher. The recipe says it will make 24 cookies, but Gabe only made 17 cookies. What type of yield does the number 24 represent?

What is the area of a rectangle that has a base of 6 cm and a height of 18 cm?

Is green green or is every other color but green?

Which planet in our solar system has the most moons?

What is a system of knowledge and the methods of find that knowledge

This chart shows discrpitions of the atoms for four different substances. Which substance is a solid

What is habitat destruction?

Nancy wants to find out how the steepness of a hill's slope affects the amount of soil that erodes from it. She has soil, a long pan, and a pile of books with which to build a model hillside. She has a watering can to model rainfall.

What is the function of the ribosome

How much energy, in joules, does 150.0 g of water with an initial temperature of 25 C need to absorb be raised to a final temperature of 75 C