Iron oxide reacts with aluminum to give aluminum oxide and iron. What kind of chemical reaction is this?

What types of atoms are in nh3 or ammonia how many hydrogen and how many nitrogen

Based on its location on the periodic table, which element would be most likely to form a negative ion? A potassium. B strontium C bromine. D magnesium.

In the reaction 2 CO + O2 → 2 CO2, what is the minimum number of moles of O2 required to produce 1.0 mole of CO2? A 0.25 B 0.50 C 1.0 D 2.0

If you have 100g of a metal heated to 100° then dropped into 100g of water at 22° and the water temp increased to 35° does the metal release heat abosrb heat or stay the same

An aqueous solution has a mass of 490 grams containing 8.5 * 10-3 gram of calcium ions. The concentration of calcium ions in this solution is 1. 4.3 ppm 2. 8.5 ppm 3. 17 ppm 4. 34 ppm

The science student wants to find the mass of a wooden block. What is its appropriate name and use of the equipment

What should be done if a chemical is poured from an original container into another container not intended for immediate use?

Substances and mixtures are two types of___.

Which is an intensive property of a substance? density volume length mass

What is the best way to determine whether a substance is an acid or a base?