If it takes five seconds for a sound of thunder to travel 1 mile how many miles is a person from the lightning bolt. If thunder is heard 15 seconds later after lightning

Dr. House took two liquids of different densities (p_1=1500 kg/m^3; p_2 = 500 kg/m^3) are poured together into a 0.1 m^3 tank filling it. If the resulting density of the mixture is 800 kg/m^3.

In equation? hsoln=? h1+? h2+? h3 which of the energy terms for dissolving an ionic solid would correspond to the lattice energy? check all that apply.

What are some examples for modern extraction techniques of aluminium?

How to convert 120 barrels to quarts?

Fossil fuels are organic materials. True False

Hydrogen has three isotopes with mass numbers of 1, 2, and 3 and has an average atomic mass of 1.00794 amu. This information indicates that 1. equal numbers of each isotope are present 2. more isotopes have an atomic mass of 2 or 3 than of 1 3.

Describe the process of how visible light is produced

Which of the following contains both ionic and covalent bonding? CH4 NaCl NH4Cl N2O4 If the formula for a compound is represented by X2Y3 and the charge on the Y ion is - 2, what is the charge in the X ion? +1 +2 +3 +4

Qual e o maior orgao do corpo humano

Whic of the following fromulas represents a nonpolar molecule? a) N2 b) H2O c) NaCI d) HCI