Which of the following elements is an example of metal that is not a transition metal?

Question 19 options:

Hg

Pb

Cu

Ag

Which type of reaction occurs without being started by some outside force? combustion reaction physical reaction spontaneous reaction activation energy reaction

Is coffee a mixture or compound

Number of moles in 3.70 x 10^-1 g of boron

Describe one everyday situation in which it would be useful to identify an unknown substance

A (n) (blank) material let's light pass through freely Once again this is science but I don't see science so I'm putting chemistry

How many protons are in an ion with 54 electrons and a - 1 charge?

Which of the following experimental observations proved that the idea of matter and mass being evenly distributed in an atom was flawed? A. Less than 1% of the alpha particles went un-deflected through the gold foil. B.

Ionization involves completely removing an electron from an atom. light of a particular wavelength can cause ionization to occur if it has the required energy. the energy to ionize a certain element is 342 kj/mol.

How many molecules are contained in a 7.20-g sample of dimethylmercury?

Could a nuecles of more than one proton but no nuetron exist? Explain