Brain, Spinal Cord

Which organ system do the organs above belong to?

A. nervous

B. cardiovascular

C. musculoskeletal

D. excretory

What is the ph of a solution made by combining 157 ml of 0.35 m nac2h3o2 with 139 ml of 0.46 m hc2h3o2? the ka of acetic acid is 1.75 * 10-5?

Calculate the number of moles of aluminum, sulfur, and oxygen atoms in 9.00 moles of aluminum sulfate, al2 (so4) 3. express the number of moles of al, s, and o atoms numerically, separated by commas.

How is temperature affected when? (A) the depth increases (B) the latitude increases

What is an ore? an object that has been recycled an article of clothing that is made from natural fiber a rock that contains enough of a metal to be worthwhile to extract a fossil fuel that can be burned to generate electricity

What is the smallest part of an element that still retains properties of that element?

Read the scientific question below. "Does sunlight make plants live?" What is a likely hypothesis for the question?

A chemist is using a solution of HNO3 that has a pH of 3.75. What is [H+] for the solution?

What is the oxidation number for CO2

Which is a property of acids in aqueous solutions?

On the periodic table, calcium and bromine are located in period 4. What is one difference between the two elements? A. Calcium atoms are more reactive than bromine atoms. B.