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The method of joints helps us to find out the unknown force in the trusses joint. And the method of section helps us to make the calculation of the direction of the zero members. A The first part of the statement is false and other part is true B The first part of the statement is false and other part is false too C The first part of the statement is true and other part is false D The first part of the statement is true and other part is true too    

As part of the calibration of a new laboratory balance, a 1.000 g mass is weighed.  What can be said about the balance if the following data are collected? Trial Measurement 1 1.201 ± 0.001 2 1.202 ± 0.001 3 1.200 ± 0.001  

Identify LiCl as either ionic or covalent, and then choose the correct name for this compound.

Price discrimination occurs through:

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A sample of ammonia (NH3) has a mass of 45.5 g.  How many molecules of NH3 are in this sample?

What is the identity of the element with the following istopic notation?

When an atom gains electrons

Silver has an atomic mass of 107.868 amu. The Ag-109 isotope (108.905 amu) is 48.16%.  What is the mass in amu of the other isotope?

What is the charge on the Sc ions in Sc2O3?