The oxidation number of lead (Pb) in the compound PbCl2 has to be

The hereditary material is known as

Theories and Laws. • How are they alike? • How are they different? • Can you explain why scientific theories will change over time? • Give an example of a scientific theory that has changed.

Acoustics is the study and application of how wildlife navigates at night. true false

Give the abbreviation for the unit which is equivalent to (kgm) / s2.

An astronomer discovers an object at a distance of 28 Mpc from the Earth. (Recall, M-prefix meaning Mega, i. e. times 106) At this distance, what is the object most likely to be?

Write a good scientific question that can be answered by Guadalupe based on what is described above. Label the independent and dependent variable within your question.

Which one is more accurate M1 = 1.0cm + - 0.1cm M2 = 0.10cm + - 0.01cm M3 = 0.100cm + - 0.001cm A. M1 B. M2 C. M3 D. All have same accuracy

What is the name of the group of elements that are human-made and do not occur in nature?

The waters of a lake will be most layered in which season A. winter B. spring C. summer D. fall

a 160kg space vehicle is traveling along a straight line at a constant speed of 800. meters per second. the magnitude of the net force on the space vehicle is