How many variables are there in science

Which of these statements is correct? Eukaryotic cells do not have ribosomes. Eukaryotic cells do not have chloroplasts. Prokaryotic cells do not have a cell wall. Prokaryotic cells do not have a nucleus.

What are three objects that are not in motion and how you know that they are not in motion

Cost of production reports can also be used to compare the materials output quantity to the a. administrative staff input quantity. b. materials input quantity. c. conversion output quantity. d. total conversion for the period.

16. Representative elements are those found in the * A. s and p blocks B. d block C. s and d blocks D. d and f blocks 17. Within the representative elements, atomic size generally * A. Remains constant within a period B.

At what temperature would the volume of a gas be 0.550 L if it had a volume of 0.432 L at - 20.0 o C?

In the process of covalent bonding, atoms share electrons. This means that * a) Electrons from each atom are attracted to the nucleus of both atoms b) Protons and neutrons attract c) Atoms lose electrons and become ions d) Atoms gain electrons and

Give the full atomic symbol for an atom that has 30 neutrons and an atomic number of 25

Maxwell, a russian scientist, created an early peridoc table of the elements. true or false

Can the nature of a reactant be altered to speed up reaction

What describes the basis of the band theory of metallic bonding