Is mixing salt and pepper physical change or chemical change?

Use the periodic table to answer the following questions: Atoms of which element contain 25 protons? magnesium (Mg) aluminum (Al) tin (Sn) manganese (Mn) Which element has an atomic number of 16? oxygen (O) sulfur (S) germanium (Ge)

Which of the following represents the solution (s) for the inequality 15x + 90 > 270?

What are some examples of Heterogeneous Catalysts?

Monel metal is a corrosion-resistant copper-nickel alloy used in the electronics industry. A particular alloy with a density of 8.80 g/cm3 and containing 0.073% Si by mass is used to make a rectangular plate that is 15.0 cm long, 12.5 cm wide, and 2.

Chemical reaction will occur if ___ 1) the mass of the products is greater than the reactants 2) the products are more stable than the reactants 3) the products are the same stability as the reactants 4) the products are less stable than the

Collagen is made of fibers and is found in tendons and cartilage. Collagen contributes to meat toughness and is, therefore, an example of which type of protein?

1. Why does CH30 evaporate faster than water?

How does concentration affect our daily lives in science?

How many nitrogen atoms are in 2.79 mo. of NH3

What is the chemical formula for polysaccharide?