7 Which element has atoms that can form halide ions?

(1) iodine (3) strontium

(2) silver (4) xenon

a toy plane weighs 500g. when placed in water, it changes the water level from 250ml to 300ml. what is the density?

When ions having a positive charge form bonds with ions having a negative charge, the charge on the resulting compound is what

Reaccionan 49 gr de acido nitrico, con 36 gr de hidroxido de calcio, en un proceso donde se obtienen 97 gr de nitrato de calcio mas agua.

15. During inspiration, A. alveolar pressure exceeds atmospheric pressure. B. transpulmonary pressure increases. C. the diaphragm relaxes. D. intrapulmonary pressure is less than atmospheric pressure

Solve by a 1 variable equation - 3 (x-3) = x+9-4x

Much of life on Earth is based in aquatic biomes. What property of water allows life to survive in liquid water?

A neutral atom of beryllium (Be) has an average mass of 9 amu and 4 electrons. How many neutrons does it have? 13 9 5 4

Calculate the maximum mass of carbon dioxide that could be obtained by adding excess hydrochloric acid to 15 g of calcium carbonate.

True or false: during dry weather, the water level in a small pond drops because of runoff.

Bradley hit a baseball with a bat. The baseball then hit a window and caused the window to break. Where did the energy that broke the window come from?