What is an ore?

A. an object that has been recycled

B. an article of clothing that is made from natural fiber

C. a rock that contains enough of a metal to be worthwhile to extract

D. a fossil fuel that can be burned to generate electricity

When light cannot travel trough a material, the light has been refracted reflected absorbed radiated

When carbon is burned in air, it reacts with oxygen to form carbon dioxide. When 16.8 gg of carbon were burned in the presence of 60.2 gg of oxygen, 15.4 gg of oxygen remained unreacted. What mass of carbon dioxide was produced?

1. Explain the difference between speed and velocity.

Choose ALL correctanswer (s) The rate law for the reaction 2NO (g) + Cl 2 (g) → 2NOCl (g) is given by R=

Record the equation for the reaction for Mg + NiNo3

What happens to the elements Sodium (Na) and Chlorine (Cl) when they combine to form salt (NaCl)

Which of the following is the major advantage of using geothermal energy instead of using coal energy? Choice: You will get a brainliest! If your correct! A. More abundant than coal B. Easier to access than coal C. Releases less carbon dioxide D.

What is berylliums energy levels

What is the SI base unit of temperature? Celsius kelvin coulomb Fahrenheit

What property of an object is expressed by the measurement of an item's mass per unit volume? A. density B. viscosity C. surface tension D. buoyancy