Atomic number and mass of O

Why cant we just put in subscripts?

The surface of water can act like a sort of skin due to a property of liquids called a. viscosity. b. surface tension. c. condensation. d. evaporation.

Where are most organisms that live in the ocean found? why?

You are a scientist exploring the surface of a new planet. You find a new substance that you do not recognize. As you attempt to identify this substance you notice that it is very spreads out to form the shape of the container you keep it in.

Which substance can be broken down by chemical means? 1) Magnesium 2) Manganese 3) Mercury 4) Methanol

Which is a quantitative observation A. 15 m long B. red color C. rough texture D. strong odor

How many moles of Na are needed to produce moles of NaCl in the reaction below 2 Na + Cl2-->> 2 NaCl A. 2 moles B. 8 moles C. 1 mole D. 4 moles

If A is slowly added to a solution containing 0.0500 M of B and 0.0500 M of C, which solid will precipitate first? The solubility product constant for A2B3 is 2.30*10-8. The solubility product constant for AC4 is 4.10*10-8.

Research three different types of fire extinguisher and explain how these can be used to put out different fires, you must relate this to the fire triangle and the section that is removed

If a mineral has a daughter to parent ration of 3:1 (three daughter atoms for every one parent atom), how many half-lives have passed since the mineral formed?