1. Is this equation balanced? Explain your answer. Na + Cl2 → NaCl?

Which of these is a mixture? A) potassium B) salad C) water H20 Dsugar C12H22O11

When acid comes into contact with calcite, the acid bubbles. How can geologists confirm that the rock towers are made of limestone?

How many moles of magnesium oxide are there in 2.50 * 10^25 formula units of MgO?

How did Wegener explain why fossils of land animals were found on continents that are across oceans from one another?

What is the volume of 0.2 moles of neon gas at STP?

How long does it tae for bleach to evaprate?

What product (s) forms at the cathode in the electrolysis of an aqueous solution of k2so4?

What element is used as a shield to protect people from radioactive substances?

The frequency of a given region of the electromagnetic spectrum is more than 3 x 1019 HZ. Note that the speed of light is 2.998 x 108 m/s. Which waves are found in this region? A. gamma rays B. visible light C. microwaves D. radio waves E. x-rays

A farmer uses water to irrigate his potato crops. Which roles of water does this examplify