Why can't heat travel from cold to hot?

A children's liquid medicine contains 100mg of active ingredient in 5 mL. If a child should receive 200 mg of the active ingredient how many mL of the medicine she's a child be given for the purpose of this question assume that these numbers are in

How many total atoms are in C6H6

Describe the four main spheres of Earth. 1. lithosphere: 2. hydrosphere: 3. atmosphere: 4. biosphere:

If 196L of air at 1.0 atm is compressed to 26000ml, what is the new pressure

Glucose and fructose both have the chemical formula (c6h12o6) and are examples of

Assume that a raindrop has a volume of 3.48 cm3. If you had an Avogadro's number of raindrops that just filled a cubic box. What would be the edge of the length of the box measured in kilometers?

Compared to a proton, an electron has (1) a greater quantity of charge and the same sign (2) a greater quantity of charge and the opposite sign (3) the same quantity of charge and the same sign (4) the same quantity of charge and the opposite sign

Why do elements in the same group have similar properties and how does this affect bonding capabilities?

An atom has 26 protons and 24 electrons, which element is this?

Which is an example of a catalyst? heat stirring decrease in temperature