1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
tia_tia [17]
3 years ago
7

How many oxygen atoms are in 1.40 g of quartz?

Chemistry
1 answer:
PtichkaEL [24]3 years ago
4 0
Jdjddjdjejejxjdnwbabjdke
You might be interested in
how many moles of silicon are in 245 g of silicon? a. 8.72 mol b. 28.0 mol c. 1.10 10-1 mol d. 6.90 103 mol
Salsk061 [2.6K]
Atomic mass silicon = 28.085 u

1 mol Si ---------------- 28.085 g  
?  ------------------------ 245 g

245 x 1 / 28.085 =><span> 8.72 mol</span>

<span>answer A</span>
7 0
3 years ago
Is rust a pure substance or a mixture? &lt;3
Naddik [55]
Iron is a pure substance
6 0
3 years ago
Read 2 more answers
How did modern scientists experiment with Van Gogh's paints to determine their chemical reactions?
Andrei [34K]

Answer:

I think the answer is A - they used X-ray analysis.

Explanation:

5 0
3 years ago
Read 2 more answers
Organs combine to form …<br> A cells<br> B tissues<br> C organ systems<br> D organisms
vodka [1.7K]

Answer:

The answer is C. Organ systems please brainly me!

Explanation:

3 0
3 years ago
Read 2 more answers
Please help with word equations?
Delvig [45]
For the answer to the questions above, 

a) Ag2CO3(s) => Ag2O(s)+CO2(g) 

<span>b) Cl2(g)+2(KI)(aq) => I2(s)+2(KCl)(aq) (coefficients are for balanced equation) </span>
<span>net ionic is Cl2(g)+2I- => I2(s)+2Cl-(aq) </span>

<span>c) I2(s)+3(Cl2)(g)=>2(ICl3)
</span>I hope I helped you with your problem
7 0
3 years ago
Other questions:
  • What do atoms form when they share electron pairs molecules isotopes elements?
    12·1 answer
  • Characteristic do many protists share with bacteria and archaea?
    11·2 answers
  • Which choice best names the type or types of rock that can become metamorphic rock?
    12·2 answers
  • What is the maximum number of electrons in the following energy level? n = 4
    6·2 answers
  • Which is most likely a covalent compound?<br><br> LiF<br> MgS<br> NH3<br> CaCl2
    12·2 answers
  • Calculate the mass, in grams, of Al(OH)3 required for this reaction:
    6·1 answer
  • How many grams of oxygen would be produced by the electrolysis of 72.0 grams of water ? 2H2O--&gt; O2+2H2 (Must be made to fit i
    9·1 answer
  • How many moles in 1.00g of salicylic acid?
    7·1 answer
  • An object has a density of 40 g/cm3 and a mass of 240 g what is it’s volume
    9·1 answer
  • The elemental mass percent composition of ascorbic acid (vitamin C ) is 40.92% C , 4.58% H , and 54.50% O . Determine the empiri
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!