what is the amount of heat absorbed when the temperature of 75 grams of water increases from 20degrees C to 35 degrees c

Which techniques would be best for separating the solute from the solvent in a solution

When a sodium atom bonds with a chlorine atom, it acquires positive charge true or false?

Why is corn considered a material resource and an energy resource?

What is the ph of a 0.0055 m ha (weak acid) solution that is 8.2% ionized?

How are antibiotics influencing the evolution of bacteria

Suppose that you measure a pen to be 10.5 cm long. Convert this to meters.

How are amounts of hydrogen and oxygen gas made from the electrolytic decomposition of water related to the chemical formula of water?

Hydrogen peroxide decomposes to water and oxygen at constant pressure by the following reaction: 2H2O2 (l) → 2H2O (l) + O2 (g) ΔH = - 196 kJ Calculate the value of q (kJ) in this exothermic reaction when 3.

What is the concentration of hydronium in each of the following cases: [OH-] = 10-12 M? [OH-] = 10-2 M?

Which statement best explains why elements are matter? An element is a physical substance that has mass and takes up space. Elements are pure substances that cannot be divided chemically. Each element is a pure substance composed of one type of atom.