Uranium-232 has a half-life of 68.9 years. A sample from 206.7 years ago contains 1.40 g of uranium-232. How much uranium was originally present?

Determine if the phrases below are true for catabolic pathways only, anabolic pathways only, or can apply to both pathways, by sorting the phrases into the three bins. Each phrase can only be used once.

Why can a liquid take the shape of the bottom of its container? The particles of a liquid can flow around one another to new locations. The particles of a liquid can break free from one another and spread out.

Describe a situation where scientific knowledge was gained through doing an experiment

Put the elements in order from the highest electronegativity at the top of your list, to the lowest at the bottom. Germanium (Ge) Gallium (Ga) Arsenic (As) Bromine (Br) Rubidium (Rb) Selenium (Se)

Jim drops an iron magnet during a chemistry lab experiment. He finds that it is no longer magnetic. What has happened in terms of its properties? a. A physical change occurred in which the iron remained iron, but lost one of its physical properties.

Plants absorb light energy and store that energy in the form of what? A water B carbon dioxide C sugar D oxygen

If 21/825g hydrogen sulfate ion in 5litr water solotion, what the percentage of its ionization?

A redox reaction will occur at 298 K when zinc metal is placed in a solution that is 0.5M Fe (NO3) 3. Is this true or False.

Sodium chloride is stirred into water to form a solution. in this case, what are sodium chloride and the water?

1. A liquid is matter because it a) is hard, b) has its own shape, c) has mass and takes up space. d) living things could not survive without it.