What are 3 examples of a complex machine

What could cause a experiment to be less reliable

Is a rabbit a primary consumer

Ionic compounds dissociate in water into:

What is the mass of 2.30 * 1022 molecules of NaOH (Molar mass = 40.0 g/mol) ?

What is the percent composition by mass of oxygen in Ca (NO3) 2 (gram-formula mass=164 g/mol) ? (1) 9.8% (3) 48% (2) 29% (4) 59%

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?