All organic compounds must contain the element

(1) phosphorus (3) carbon

(2) oxygen (4) nitrogen

A (n) ___chemical equation has the same number of atoms of each element on both sides. false balanced imbalanced physical

A mixture containing particles that will settle out if left undisturbed is called a a. colloid c. suspension b. colligative d. electrolyte

U ulese Clemens Udve Wom 4) How are atomic radii and ionization energy related (i. e. as atomic radius increases, what happens to the ionization energy) ?

What are the two sources or heat in earth's interior? A) radioactive decay and convection currents B) magma and liquid outer core C) sunlight and meteor impacts D) leftover heat from formation and radioactive decay

Record the length of the line shown in millimeters

Which of the following would be a result of increased solar activity? A. Longer winters B. Warmer-than-normal sea surface temperatures C. Colder-than-normal sea surface temperatures D. Shorter summers

The electron configuration of an element is 1s22s22p63s23p64s1. why is this a representative element?

Why is scientific notation important in chemistry?

During translation, the new polypeptides are often directed to specific parts of the cell by the presence or absence of short sequences of amino acids called signal sequences.

Is potassium iodide an electrolyte or nonelectrolyte?