How many atoms are in 3.75 moles of Fe

Element A has a half-life of 10 days. A scientist measures out 200 g of this substance. After 30 days pass, the scientist reexamines the sample. How much Element A will remain in the sample?

What is this element 1s22s22p6?

For a particular isomer of C 8 H 18, C8H18, the combustion reaction produces 5104.1 kJ 5104.1 kJ of heat per mole of C 8 H 18 (g) C8H18 (g) consumed, under standard conditions.

What type of elements make up an ionic compound

The atoms of the isotopes of a particular element vary in the number of

Which two properties are characteristic of ionic compounds?

explain why the hydrogen atoms in a hydrogen gas molecule form nonpolar covalent bonds but the oxygen and hydrogen atoms in water molecules form polar covalent bonds

The equation 2 N O 2 in equilibrium with N 2 O 4 represents a system,

How does the calorie compare to the metric unit the joule? How do you calculate a calorie? Is it the same for all types of food?

Under which conditions would the solubility of a gas be greatest? A. high pressure and high temperature B. high pressure and low temperature C. low pressure and high temperature D. low pressure and low temperature