A compound is 24.7% calcium, 1.2% hydrogen, 14.8% carbon, and the rest is oxygen. Write the empirical formula and name the compound.

Which part of the nervous system is a gray, wrinkly organ made up of millions of neurons? A. nerves B. brain C. spinal cord D. eye wasn't exactly sure what category to put in

Out of butter and groundnut oil which is unsaturated in nature

Which of the following statements best describes the relationship between elements and compounds? A. Atoms of more than one element can combine in different ways to form the same product. B.

When a solution labeled 0.50 m hno3 is diluted with water to give 0.25 m hno3, what happens to the number of moles of hno3 in the new solution?

Determine the volume of 1.00 mole of a gas under the following conditions: T = 273 K, P = 2.00 atm: V = L T = 546 K, P = 1.00 atm: V = L T = 409.5 K, P = 1.50 atm: V = L

What water activities might be easier to do in Lake Assal's salty water? What activities could be more difficult?

The suffix "-megaly in the term gastromegaly means:

The harder you strike a drum, the greater the sound's A) medium B) volume C) frequency D) pitch

The equation X + Y 2Z has the rate law equation shown below. Which of the following statements best describes the relationship of X on the rate of the reaction? rate = k[X]2[Y] Changing X has no effect on the reaction rate.

What moves in or out of a substance during a change of state?