Radioactive elements include all those elements whose nuclei contain more than

1.

83 amu

83 nucleons

83 neutrons

83 protons

A chemical names an element

Table sugar has the chemical formula C12H22O11 what is the ratio of carbon atoms to oxygen atoms in this compound?

The following reaction does not proceed to form a product: HNO3 + Cu → no reaction. Why? A) Copper has a lower activity than hydrogen and cannot replace it. B) The reaction proceeds too slowly to create products.

Difference betwifference between a mixture or compound

In a scientific experiment, a statement that describes how to measure a particular variable or define a particular term is a (n) a. hypothesis. b. manipulated variable. c. operational definition. d. responding variable.

Given 4.80g of ammonium carbonate, find: Number of moles of the compound Number of moles of ammonium ions Number of moles of carbonate ions Number of moles of hydrogen atoms Number of hydrogen atoms

The density of water is 1.0 g/cm3 will rubbing alcohol float with a density of 0.81 g/cm3

Write an equation that shows the formation of the phosphide ion from a neutral phosphorus atom.

Which of the following terms is defined by the measure of mass per unit of volume? gravity density weight acceleration

Select the lon. O NO₂ H2SO4 O A3