Which of the following is true about the weight of an object?

A. It remains same for the object.

B. It cannot be measured accurately.

C. It is a force acting on the object.

D. It is always less than the mass of the object.

Can a electron be found in an exact spot within a atom

Two liquids are added to the same graduated cylinder. liquid a has a mass of 10g with a volume of 5ml. liquid b has a mass of 15g with a volume of 10ml. which liquid would end up on the top when they are combined

Which chemical equation is balanced? A) 2PCl5 + 2H2O → 2HCl + H3 PO4 B) PCl5 + H2O → HCl + H3 PO4 C) PCl5 + 3H2O → 5HCl + H3 PO4 D) PCl5 + 4H2O → 5HCl + H3 PO4

A calorimeter contains 100 g of water at 39.8 ºC. A 8.23 g object at 50 ºC is placed inside the calorimeter. When equilibrium has been reached, the new temperature of the water and metal object is 40 ºC. What type of metal is the object made from?

In part D of the experiment, a student begins with a beaker containing 10.0 mL of 0.010 M HCl solution and adds different volumes of 0.010 M NaOH.

Describe the difference between gravitational force and strong nuclear force

How do you make an ionic compound neutral

Which sample contains the greatest number of atoms? which sample contains the greatest number of atoms? 14 gc 102 gag 49 gcr 202 gpb?

2NO2 (g) Equilibrium N2O4 (g) NO2 and N2O4 undergo the reaction shown. When a sealed container of NO2 reaches chemical equilibrium, which must be true? f The maximum number of molecules has been reached. g No N2O4 is present.

How does a scientist critique another scientist's conclusion? A. By ignoring the first scientists date B. By Criticizing the scientist's personal beliefs C. By performing more experiments D. By reading secondary sources