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
Ierofanga [76]
3 years ago
10

Grinding quartz crystals down to produce sand is an example of a

Chemistry
1 answer:
Katyanochek1 [597]3 years ago
5 0
Grinding quartz crystals down to produce sand is an example of a?

-physical change
You might be interested in
How many molecules are in 7.34 g of Na2CO3
kenny6666 [7]

Answer:

The answer is 105.98844.

<h3>Explanation: </h3>

We assume you are converting between grams Na2CO3 and mole. You can view more details on each measurement unit: molecular weight of Na2CO3 or mol This compound is also known as Sodium Carbonate.

7 0
3 years ago
I need help ASAP!!!!! What happens to water when it changes to ice?
Gre4nikov [31]

- It's density increases

- mass increases

- volume increases

Hope this helps!

6 0
2 years ago
Read 2 more answers
There are<br><br> molecules of carbon dioxide (CO2) in 102.5 grams.
Gekata [30.6K]

Answer:

1.403x10²⁴ molecules

Explanation:

In order to calculate how many molecules of CO₂ are there in 102.5 g of the compound, we first<u> convert grams to moles</u> using its <em>molar mass</em>:

  • 102.5 g ÷ 44 g/mol = 2.330 mol CO₂

Now we <u>convert moles into molecules </u>using <em>Avogadro's number</em>:

  • 2.330 mol * 6.023x10²³ molecules/mol = 1.403x10²⁴ molecules
7 0
2 years ago
Using the Lewis dot structures of magnesium and oxygen, predict the ionic formula
Blizzard [7]

Answer:

(edit: nvm I figured it out, here is the answer)

Explanation:

7 0
3 years ago
Several scientists from different countries are asked to examine the results of an experiment before a journal will print it. Wh
maxonik [38]

Answer:

Peer Review

Explanation:

6 0
1 year ago
Read 2 more answers
Other questions:
  • What is Ka for H3PO4(aq) ⇌ H+(aq) + H2PO4-(aq) a. Ka = (H3PO4)/(h+)(H2PO4-) B. Ka = (H3PO4)(H+)(H2PO4-) C. Ka = (H3PO4)/(H+)(H2P
    10·1 answer
  • What kind of solvent(s) should be used to dilute magnesium nitrate and why?
    13·1 answer
  • Reliable results are results that can be...<br> A: communicated<br> B: evaluated<br> C: duplicated
    8·2 answers
  • An aqueous solution of ammonium sulfate is allowed to react with an aqueous solution of calcium nitrate.
    15·1 answer
  • You
    7·1 answer
  • Which of the following is the best hypothesis?
    6·1 answer
  • Natural gas, which you may assume to be pure methane, is burned in a furnace for space-heating purposes. (a) If twice the minimu
    10·1 answer
  • What's a petroleum industriously​
    14·2 answers
  • What is the atomic mass for cl
    8·1 answer
  • 2. When iron rusts what is it reacting with?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!