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Estimate the number of atoms

The disk shaped head of a pin is 1.0 mm in diameter.Which of the following is the best estimate of the number of atoms in the
1. 3 answers
2. asked by Kailey
3. 3,372 views
How are all atoms of iron different from the atoms of all other elements?A.number of neutrons B.charge on the atoms C.mass
1. 4 answers
2. asked by victoria
3. 721 views
How do the total number of atoms before a chemical reaction compare to the number of atoms after the chemical reaction?Responses
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2. asked by hola
3. 41 views
Which of these refers to atoms with the same atomic number but different atomic masses?These atoms are isomers. These atoms have
1. 1 answer
2. 41 views
On an energy graph, the length of vertical lines represents ________.(1 point)Responses the number of reactant and product atoms
1. 1 answer
2. 137 views
A sealed container contains 1 mole of neon gas at STP. Estimate the number of neon atoms having speeds in the range from 200 m/s
1. 2 answers
2. asked by zuhra
3. 768 views
A sealed container contains 1 mole of neon gas at STP. Estimate the number of neon atoms having speeds in the range from 200 m/s
1. 0 answers
2. asked by zuhra
3. 529 views
Atom A and Atom B have the same number of protons and neutrons, but they do not have the same number of electrons.Which
1. 1 answer
2. 84 views
Which of the following does the atomic number of atoms represent A the number of particles in the nucleus of the atom B the
1. 1 answer
2. asked by Rizzler
3. 43 views
1 molecule of nitrogen (N2) reacts with 3 molecules of hydrogen (H2) to produce some amount of ammonia (NH3).Use the number of
1. 1 answer
2. 37 views