Which subatomic particle makes the atoms of each elements different?

Jenny accidentally drops her ring into a graduated cylinder. If the ring has a mass of 5 grams and the water level in the cylinder rises from 5 mito 7.5 ml, determine the density of the ring. A: 2 g/mi B: 50 g/mi C: 15 g/mi D: 0.5 g/mi

Calculate the number of iron atoms in 71 grams of iron

Which element will react with cold water? (a) sodium (b) calcium (c) zinc (d) iron (e) copper (g) mercury

If you have a density of 3g/ml and volume of 10mL. what is the mass?

Identify each energy exchange as primarily heat or work and determine whether the sign of ΔE is positive or negative for the system. a. A rolling billiard ball collides with another billiard ball.

A minerals luster is produced by its ability to transmit light. Opaque minerals always have a metallic luster because they do not transmit any light. True False

The elements selenium and oxygen are both poor electrical conductors in which section of the periodic table are they found

What is the mole ratio of NaOH to Al (OH) 3

What is Atomic mass A: the mass of the atom based on the mass of an atom of oxygen-16 B: the mass of an atom based on the mass of an atom of carbon-12 c: the average mass of all isotopes d: the mass of the atom based on the mass of an atom of

What are the top 2 risk Maryland faces due to climate change