Find an astm method for conducting calibration tests for these three instruments a balance (either an analytical or a top loader), a visible / ultraviolet spectrophotometer, and a ph meter.

Brainliesttt me asap! the below reaction can be categorized as more than one type of reaction. which reactions are these, and what are the types of reactions?

What type of energy do chemical bonds have? what type of energy is it converted to during chemical reactions? question 15 options: chemical bonds have kinetic energy, which is converted to potential energy during chemical reactions. chemical bonds have electric energy, which is converted to potential energy during chemical reactions. chemical bonds have heat energy, which is converted to kinetic energy during chemical reactions. chemical bonds have potential energy, which is converted to heat energy during chemical reactions.

How many oxygen atoms are there in 3.15 moles of hcl manganese (iv) oxide, mno2