A substance XY, formed from 2 different elements, boils at -33.0°C. Is XY likely to be covalent or an ionic substance? EXPLAIN!

The fact that the total amount of energy in a system remains constant is a(n)

Can someone check my work 98 5.05 acids and bases for this assignment you will be comparing acids and bases. the chart below will you organize the information needed: acids bases chemical properties (2) deodorant detergent vinger dish soap physical properties (2) orange juice toilet cleaner drain cleaner window cleaner ph level acid ph goes from 0-4 bases ph goes from 10-14 examples around you (2) vinger coffee lemon juice dark chocolate

Use the periodic table to determine how many grams of oxygen would be required to react completely with 859.0 g c2h2