If you forget to dry off a bread knife and when you washed it and reddish brown spots appeared on it would that be physical or chemical change

What is the chemistry principle for silly putty and candle waxas it pertains to hydrophilic/hydrophobic, polar/nonpolar andsoluble/non-soluble and binding/non-binding?

In the following reaction, which component acts as an oxidizing agent? 10 I - (aq) + 2 MnO4 - (aq) + 16 H + (aq) → 5 I2 (s) + 2 Mn2 + (aq) + 8 H2O (l)

Assume the molar absorptivity (ε) for CoCl42 - at 700 nm is 409.7 M-1 cm-1. If d, the cell path length, is equal to 1.48 cm for the cuvettes being used, and if the measured absorbance (A) at 700 nm is 1.147, what is [CoCl42-]?

How to remember what sublimation, and deposition. Fast!

What volume of a concentrated hcl solution, which is 36.0% hcl by mass and has a density of 1.179 g/ml, should you use to make 8.00 l of an hcl solution with a ph of 1.500?

How many moles of oxygen react with 0.23 moles of NH3

How many moles of carbon do you have in 100 quadrillion carbon atoms? report answer to 2 sig figs

A small 15 kilogram canoe is floating downriver at a speed of 4 m/s. What is the canoe's kinetic energy?

Liquid water is heated until it boils and becomes water gas. Which statement is true about the water?

You are conducting an experiment on plant growth. You take a plant fresh from the soil that weighs 5 kilograms (kg). Then you dry the plant overnight and determine the dry weight to be 1 kg.