ILLLICI
Whic
bstance is the precipitate in the following
Ulali 3 CM
ction?
Pb(NO3)2(aq) + Na2SO4(aq) ® PbSO4(s) + 2NaNO3(aq)
O PbSO4
M
eses
O Pb(NO3)2
O Na2SO4
O Pb(NO3)2

Identify and describe the three ways that mutations affect organisms.

In the cathode ray tube experiment, j. j. thomson passed an electric current through different gases inside a cathode ray tube in the presence of an electric field. in which two ways did this experiment change scientists’ understanding of the atom?

An engineer decides to use a slightly weaker material rather than a stronger material, since she knows that the stronger material can break suddenly. this is an example of what? a choosing a material that will show warning before it fails b using composite materials that combine strength c using a material for multiple applications d using design techniques that increase efficiency and reduce cost