Earth Science

posted by .

Quartz is made up of___________
a.)silicon and oxygen
b.)iron and oxygen
c.)silicon and carbon
d.)iron and silicon

  • Homework dumping -

    Spamming this message board is a good way to get yourself on the banned list.

  • Earth Science -

    Quartz is SiO2.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. English

    In this sentence Plenty of silicon is found on Earth, but it remains a valuable material for the computer industry. I'm still not sure if the simple subject is plenty or silicon, but I think it's silicon because the second part of …
  2. science

    largest layer of earth's surface, composed mostly of silicon, oxygen,magnesium,and iron is called____________
  3. science

    what is the largest layer of earth's surface , composed mostly of silicon,oxygen,magnesium,and iron
  4. chemistry

    When 50 g of silicon dioxide is heated with an excess of carbon, 32.2 g of silicon carbide is produced. what is the percent yield of this reaction?
  5. Chemistry

    Which of the following surfaces does a true monolayer always form on?
  6. Chemistry

    What is the change in entropy when 0.290 g of silicon is burned in excess oxygen to yield silicon dioxide at 298 K?
  7. chemistry

    What is the change in entropy when 0.290 g of silicon is burned in excess oxygen to yield silicon dioxide at 298 K?
  8. CHEM

    Silicon carbide, commonly known as carborundum, is a very hard and abrasive substance. The compound is prepared by heating silicon dioxide in the presence of graphitic carbon: SiO2(s) + 2C(s) --> SiC(s) + CO2(g) How many grams of …
  9. Science--Help.

    Which of the following is NOT one of the eight most common elements in Earth’s continental crust?
  10. Chemistry

    Silicon carbide, commonly known as carborundum, is a very hard and abrasive substance. The compound is prepared by heating silicon dioxide in the presence of graphitic carbon: SiO2(s) + 2C(s) --> SiC(s) + CO2(g) How many grams of …

More Similar Questions