Given the following chemical reaction: 2 O2 + CH4 CO2 + 2 H2O What mass of CH4 is required to completely react with 100 grams of O2?

Hunter drew a representation of the atoms of a gas. The illustration shows atoms moving freely at high speeds.

Hat type of cells carry the oxygen and CO2 in your body?

In which orbital (s) are all the inner-shell electrons located in an atom of magnesium that is in the ground state?

A gas expands in volume from 26.7 to 89.3 mL at constant temperature. Calculate the work done (in joules) if the gas expands (a) against a vacuum, (b) against a constant pressure of 1.5 atm, (c) against a constant pressure of 2.8 atm. (1L⋅atm=101.

Which term best defines a saturated hydrocarbon with single bonds only? a. alkane b. isomer c. alkene d. alkyne

What is the final stage of cell division where the cytoplasm is divided among the two new daughter cells? A) G1 B) anaphase C) cytokinesis D) interphase

Consider two equal size rooms connected by an open door. One room is maintained at a higher temperature then the other one. Which room contains more air molecules? Explain.

When and how was benzene first used

How does magnification occur in an electron microscope?

What does Earth's crust consist of?