When a system performs work on the surroundings, the work is reported with a negative sign.

Which has the most atoms a mole of h2o or a mole of ch4?

In order to break down a polymer, enzymes must add water to break the bonds between the monomers. During this process, a hydrogen from the wter is added to one of the monomers and a hydroxyl from the water molecule is added to th eother monomer,

An atom of aluminum in the ground state and an atom of gallium in the ground state have the same (1) mass (2) electronegativity (3) total number of protons (4) total number of valence electrons

The simplest type of stream cipher, one in which one letter or character is exchanged for another, is known as what?

The only weakness of science is the fact that scientists disagree with each other. true or false?

Which structures are found on sponges? pores medusae polyps stinging cells

Coefficients in a chemical equation are used to: balance the number of atoms on both sides of the equation ensure that all subscripts on both sides of the equation are the same indicate energy changes that occur during the reaction indicate the type

What determines your blood cholesterol level?

Describe two ways that water moves through earthy atmosphere in the water cycle.

which of the following questions can use science as a method of inquiry? a. is cloning appropriate b. how can we protect crops from drought c. why is jazz a great type of music d. did dinosaurs exist