A substance undergoes a change.

Which statement indicates that the change was a chemical change?

A marine biologist is preparing a deep-sea submersible for a dive. The sub stores breathing air under high pressure in a spherical air tank that measures 78 cm wide. The biologist estimates she will need 5100 L of air for the dive.

The Venus flytrap is a plant that lives in wetland ecosystems that do not have nitrogen-rich soils. To make up for the lack of nitrogen in the soil, this species captures insects and digests them to obtain the nitrogen it needs.

Vapor condensing is an example of ... ?

A conversion factor is a fraction that is always equal to what number? 1 10 100 It varies according to the problem.

The gravitational Strength on earth is less than the gravitational strength on Neptune. Which statement is correct?

How does phosphorus enter the human body?

When a reaction occurs between atoms with ground state electron configuration 1s2 2s1 and 1s2 2s2 2p5 the predominant type of bond formed is

How does heat transfer takes place between any two systems?

Hydrate name of CaCl2 * 8 H2O

Calculate the heat evolved from a mixture of 14.1 l of sulfure dioxide