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Trava [24]
3 years ago
9

Elements of group 4a do not commonly form ions. generally form negative ions. do not combine with other elements. generally form

positive ions.
Chemistry
1 answer:
alexdok [17]3 years ago
3 0

How does the law of conservation of mass apply  to this reaction: C2H4 + O2 → H2O + CO2?

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0.71 g Cu equals how many moles
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The correct answer is 0.011330374846536 Hope this helps ;D
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Bronze is an example of which of the following:<br><br> element<br> atom<br> solution<br> solvent
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It is a solution, because it's the alloy of tin and copper 
8 0
4 years ago
What mass of powdered drink mix is needed to make a 0.5 M solution of 100 mL?
Maru [420]

Answer:

There is 17,114825 g of powdered drink mix needed

Explanation:

<u>Step 1 :</u> Calculate moles

As given, the concentration of the drink is 0.5 M, this means 0.5 mol / L

Since the volume is 100mL, we have to convert the concentration,

⇒0.5 / 1   =  x /0.1    ⇒ 0.5* 0.1  = x = 0.05 M

This means there is 0.05 mol per 100mL

e

<u>Step 2 </u>: calculate mass of the powdered drink

here we use the formula n (mole) = m(mass) / M (Molar mass)

⇒ since powdered drink mix is usually made of sucrose (C12H22O11) and has a molar mass of 342.2965 g/mol.

0.05 mol = mass / 342.2965 g/mol

To find the mass, we isolate it ⇒0.05 mol * 342.2965 g/mol = 17,114825g

There is 17,114825 g of powdered drink mix needed

3 0
3 years ago
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1
Molodets [167]

Answer: The temperature does effect the growth of the plants. If you kept them all at different temperature and the growth was different then the temperature is definitly a factor in plant growth

Explanation:

7 0
3 years ago
Help with chemistry hw
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The answer is 2.138 g of H2
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