What is the mass number of an ion with 107 electrons, 157 neutrons, and a 1 charge?

Given the following equation, what is the correct form of the conversion factor needed to convert the number of moles O2 to the number of moles of Fe reacted?

When blending substances and you do so unevenly, you can describe the mixture as: a. Homogeneous b. Heterogeneous C. Homeostasis

The cell wall is a rigid structure that surrounds plant cells. The materials found in the cell wall protect the plant cells and give plants structural support.

Why a cut apple wrapped in foil does not turn brown?

a volleyball is full of pressurized air. the air temperature is 24.6 degrees C. the volleyballs absolute pressure is 140.75 kilopascals and it's volume is 5.27 liters. how many miles of air are inside the volleyball

Molar mass of 34.00 g/mol molecular formula

In CO which element holds electron more tightly

Copper is composed of two naturally occurring isotopes: Cu-63 (69.170%) and Cu-65. The ratio of the masses of the two isotopes is 1.0318. What is the mass of Cu-63?

The measurement describes the area of solid object a. 25mm b. 23c c. 25cm2 d. 25cm3

The face-centered gold crystal has an edge length of 407 pm. based on the unit cell, calculate the density of gold.