The biosphere:

1. ends at sea level

2. does not include the atmosphere

3. extends deep below the surface of the earth

4. reaches thousands of feet above the earth

Which focuses on the composition of matter analytical chemistry physical chemistry organic chemistry inorganic chemistry

1. For each of your three trials state the following: • heat needed to melt the ice (q) • enthalpy of fusion • percent error from the accepted enthalpy of fusion of water of 334 J/g Answer:

Neils Bohr constructed a theory of atomic structure based on quantum ideas because: a) line spectra data showed that when an element was heated only specific wavelengths of light were produced b) lab data showed that all elements emit continuous

An atom contains on proton, one electron, and one neutron. Which two particles are most similar in mass

How many different elements are in nine substances

Which element is more electronegative, sulfur or nitrogen?

How does igneous rock become metamorphic rock?

The atomic mass oftitanium is 47.88 atomic mass units This atomic mass represents the 1) total mass of all the protons and neutrons in an atom of Ti 2) total mass of all the protons, neutrons, and electrons in an atom of Ti 3) weighted average mass

How many milliliters of. 45m hcl will neutralize 25ml of 1m koh?

Explain an example of a chemical bond