Answers: 3
Chemistry, 22.06.2019 02:00
The alkali metals (group 1) consist of lithium (3), sodium (11), potassium (19), rubidium (37), cesium (55), and francium (87). they are soft, metallic solids with low densities and low melting points. based on the data shown in figure 1, how many valence electrons do alkali metals share?
Answers: 3
Chemistry, 22.06.2019 06:30
Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line
Answers: 1
Chemistry, 22.06.2019 07:50
Which of the following electromagnetic waves can create ions?
Answers: 2
Chemistry, 22.06.2019 12:30
If 22.5 liters of oxygen reacted with excess of hydrogen, how many liters of water vapor could be produced?
Answers: 3
What do you mean by mixture? give two examples?...
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