What unknown has a white color, powdery texture, bubbles when an acid is added, insoluble in water, is a good conductor and has a ph of 9 with no change while heating?

Agas diffuses 1/7 times faster than hydrogen gas (h2). what is the molar mass of the gas? 100.10 g/mol 98.78 g/mol 86.68 g/mol 79.98 g/mol

Which best explains why an iceberg floats?

In an investigation that uses the scientific method, which step immediately follows making a hypothesis? o summarizing the results o asking a question o making observations designing an experiment mark this and retum save and exit next submit