A 12 foot ladder is leaning against a building. The ladder makes a 45 degree angle with the building. How far up the building does the ladder reach?

What are the similarities between passive immunity and active immunity

What particles are in the nucleus of an atom?

Suppose the carbon and oxygen react according to the equation: o2 + 2c = 2co. if you started with sixty oxygen molecules (60o2) and sixty carbon (60c), how many carbon monoxide molecules could you make?

Which of the following does a simple circuit require? A. an energy source, a resistor, and a capacitor B. a load, a conductor, and a resistor C. a load, a resistor, and a capacitor D. an energy source, a load, and a conductor

Under which circumstances is it wise to use a mixture of solvents to carry out a recrystallization

For the baeyer-villiger oxidation of cyclohexyl methyl ketone

What will happen if the density of an object is less than the density of water?

Which cannot be separated into simpler substances? compound element solution mixture

What jobs involve chesmistry

Think about a neutral magnesium atom. Then think of a magnesium ion with a 2+charge. How are these two alike? How are they different? Be sure to use the terms proton, neutron, and electron in your answer.