As an atom's nucleus gets larger the electric charges repelling the protons get larger. To compensate for this greater electric charge the atom

Assuming no mass escapes, explain why the mass of a rusted nail is greater than the mass of a nail before it rusted

Consider again the thermite reaction. If 0.0257 g Al react completely, what mass of Fe forms? Use the periodic table to find molar masses. Fe2O3 + 2Al → Al2O3 + 2Fe Select the correct setup for this calculation.

For each relationship, write 2 conversion factors: A - 1000 m = 1 km B - 10 mm = 1cm C - 1000 kL = 1 ML D - 1 mL = 1g

A textbook is an example of a

Physical change is one that affects the physical properties of a substance true or false

How does an atom with too few neutrons relative to protons undergo radioactive decay? * by converting proton to a neutron by converting a neutron to a proton by emitting an alpha particle

What is the chemical formula for the compound formed between sodium and iodine?

8. Write a balanced chemical equation showing how you could prepare each of the following salts from an acid-base reaction: KNO3, NaBr, and Cas.

Is calcium carbonate a compound element or mixture?

Why do covalent bonds not involve the transfer of electrons