Which field of science studies the composition and structure of matter

Um what happen when you mix salt and soda? a. it fizzes up b. it blows up or c. nothing at all

How many moles of Oxygen atoms do you have when you have 1.20 x {10}^{25} N2O5 molecules?

The electron configurations of two unknown elements X and Y are shown. X: 1s22s22p63s1 Y: 1s22s1 Which statement is most likely correct about the two elements? A.

The production of carbon dioxide might be an indicator of what process

Referring only to the periodic table, tell: a). How the electron configurations of fluorine (F) and chlorine (Cl) are similar? b). How are they different? c).

What does it mean for data to be continuous?

When an acid reacts with a base what compounds are formed? a. a salt only. b. water only. c. a salt and water. d. metal oxides only.?

What is the differences between River system, Tributary?

having that coloration is selected for since many predators will recognize it and stay away. Therefore the common coloration is beneficial to the butterflies and becomes more common. What type of selection is involved?

What organisms appeared on Earth First? a). gastropods b). horn corals c). brachiopods d). crinoids