equipo 1
equipo 2
equipo 3
equipo 4
100

What is the formula for baking soda?



NaHCO₃

100

What is the chemical formula of water?



H₂O

100

What does hydrochloric acid produce over calcium carbonate?



Carbon dioxide ( CO₂) release.

100

What is the formula of carbon dioxide?


CO₂

200

What is the symbol of the magnesium element?



Mg

200

What is the glucose formula?



C₆H₁₂O₆

200

What reagent is used to detect starch?



Iodine or Lugol solution, which produces a dark blue color.

200

What is the formula of sodium sulfate?


Na₂SO₄

300

What is the formula of potassium chlorate?



KClO₃

300

Mention two common examples of acid reagents that are frequently found in a school laboratory.



Hydrochloric acid and sulfuric acid

300

What is the formula of hydrochloric acid?



HCl

300

Which element has a Sn symbol?



Sting

400

What element has the W symbol?



Wolfram or tungsten

400

Which element is the main component of the diamond?



Carbon (C)

400

What reagent is used to check the presence of water in an organic compound by color change?


Copper sulfate

400

What is the chemical name of hydrogen peroxide?



Hydrogen peroxide

500

What is the glucose formula?



C₆H₁₂O₆

500

How do we know if a reagent is acid or base?


Using a ph indicator


500


Which element has atomic number 79?


Gold (Au)

500

Are vinegar and bicarbonate reactive?



Yes