How do optical telescopes work?

Scientist use scientific notation to represent very small or very large numbered because this notation increases the

A ball was rolling at 5.6m/s for 3seconds. How far did the ball travel?

What does the atomic mass describe?

A color that is lighter than its basic hue is known as a tint. a color that is darker than its basic hue is called a

Which particle contains the greatest number of electrons?

A 75.00 g a sample of a substance is analyzed and found to consist of 32.73 g phosphorus and 42.7 g oxygen. calculate the percent composition of this substance.

Which one of the following melts the fastest: rectangular prism, cylinder, and rectangular trapezoidal trough?

A 1.8-mL volume of seawater contains about 4.0 * 10^-10 g of gold. The total volume of ocean water is about 1.5 * 10^21 L. Calculate the total worth of all the gold in the world's oceans if the price of gold is $19.

Why are numbers placed before the elements and molecules in a chemical equation?

Which of these pairs of elements have the same number of valence electrons? oxygen (O) and bromine (Br) selenium (Se) and bromine (Br) carbon (C) and lead (Pb) oxygen (O) and carbon (C) sodium (Na) and magnesium (Mg)