Is burnt toaster a chemical or physical change?

Elements known for their limited chemical reactivity are

What is a chemical bond? a. the force that holds together the elements in a compound b. a substance that's composed of atoms c. a representation of chemical properties d. the attraction of two atoms that holds the atoms together?

Which is most likely a solid at room temperature? a. chlorine b. hydrogen c. neon eliminate d. potassium?

What is the total number of protons contained in the nucleus of a carbon 14 atom

What does the term corrosive mean?

How many grams of sulfur (S8S8) must be dissolved in 100.0 g naphthalene (C10H8C10H8) to make a 0.11 mm solution

Mason compare the properties of two compounds magnesium oxide is an ionic compound and hydrogen peroxide is not an ionic compound there for both compounds most likely

Cisplatin is synthesized as follows: K2PtCl4 (aq) + 2NH3 (aq)  Pt (NH3) 2Cl2 (s) + 2KCl (aq) What mass of cisplatin can be made from 100. g of K2PtCl4 and sufficient NH3? What mass of KCl is also produced?

What is the total number of protons in the nucleus of an atom of potassium-42? (1) 15 (3) 39 (2) 19 (4) 42

What happens to the equilibrium when the pressure is increased? It favors formation of products. It does not change. It favors formation of reactants. It is conserved.