How many electrons does does hydrogen have

Daniel has a sample of pure copper. Its mass is 89.6 grams (g), and its volume is 10 cubic centimeters (cm3). What's the density of the sample? A. 0.11 g/cm3 B. 8.96 g/cm3 C. 11.1 g/cm3 D. 896 g/cm3

1 - what is 3-what is the 4-How many

1. There are two days every year when daytime and nighttime are equal. These days happen when the Sun appears in a special position in the sky. The exact moment when the Sun appears in this position is called an equinox (EE-kwuh-noks).

What is heat we feel from the sun

What is the atom number of an element that has six protons and eight neutrons?

Which oxygen pachages materials and distributed them throughout the cell

How many atoms in 3 mol zn

Isotopes: are atoms of different elements which have the same mass are atoms of the same element with equal numbers of neutrons are atoms of the same element with different numbers of neutrons are atoms of the same element with equal numbers of

What would happen to the volume of a sample of gas if the temperature was decreased at the same time the pressure was increased?

How do the compounds that cause acid rain spread from their source?