Aside from Earth, which of the following inner planets once had liquid water on its surface?

The leaves on a green plant soak up sunlight to make food. A cow's stomach digests grass that was eaten. These are examples of which characteristic of life? A) growth B) homeostasis C) metabolism D) heredity

Covalent bonds are formed when electrons are shared between two atoms transferred from one atom to another mobile within a metal captured by the nucleus

How many moles of an ideal gas are in a tank with a volume of 22.9 L at pressure of 14.297 atm at 12°C? (Show work and units)

Which statement describes how polymerization relates to proteins and amino acids? Many different proteins join together to form an amino acid. Many different amino acids join together to form a protein.

The gene for the favorable in case this cotton DNA

2CO + 2NO yields 2CO2 + N2 which element was oxidized

What what is any harm to the physical chemical or biological health of the ocean ecosystem

In what pH range do most biochemical reaction occur

Which formula equation shows a reversible reaction? a. 2Na+F2-> 2NaF b. CaCO3-> CaO+CO2 c. NH4CI (s) - -NH3 ( g.+HCI ( g. 2H2O2 (aq) - pt-> 2H2O (I) + O2 (g)

When a sample of gas is cooled in a sealed, rigid container, the pressure the gas exerts on the walls of the container will decrease because the gas particles hit the walls of the container (1) less often and with less force (2) less often and with