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KATRIN_1 [288]
3 years ago
13

লবণ ও বালুর মিশ্রন পরীক্ষা​

Chemistry
1 answer:
bija089 [108]3 years ago
3 0

Answer:

cause it has more

space between molecules.

O C. Ice has a higher density than li

Explanation:

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How do atoms form new substances?
geniusboy [140]
Atoms combine as the electrons from each atom are attracted to the nuclei of the atoms. This results in bonds ranging from 100% covalent to bonds with high ionic character. The combination of atoms to form compounds occurs when the compounds being formed are at lower energy than the original atoms
5 0
3 years ago
Is. Fe(s) ---------------&gt; Fe2+(aq) + 2e−<br>oxidation or reduction?​
frez [133]

Answer:

Oxidation occurs at the anode: Fe(s) | Fe2+(aq) half cell. (ii) Reduction occurs at the cathode: Ag(s) | Ag+(aq) half cell. Oxidation occurs at the anode: Pt | Sn2+(aq), Sn4+(aq) half cell. (iii) Electrons flow from the anode to the cathode: from the Pt(s) → Ag(s) electrode.

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3 years ago
What would it take for Americans today to favor a greater reliance on nuclear power as a source of electricity
Ierofanga [76]

Answer:

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Explanation:

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7 0
3 years ago
Two methanol-water mixtures are contained in separate tanks. The first mixture contains 40.0 wt% methanol and the second contain
RoseWind [281]

Answer:

M_{per}= 52.86

W_{per}=47.14

Explanation:

<u>First mixture</u>:

40 wt% methanol - 60 wt% water 200 kg

m_{met1}=200 kg * 0.4= 80 kg

m_{wat1}=200 kg * 0.6= 120 kg

<u>Second mixture</u>:

70 wt% methanol - 30 wt% water 150 kg

m_{met2}=150 kg * 0.7= 105 kg

m_{wat2}=150 kg * 0.3= 45 kg

Final mixture:

m_{metF=80 kg + 105 kg= 185 kg

m_{watF}=120 kg + 45 = 165 kg

M_{per}=\frac{185 kg}{185 kg + 165 kg}*100= 52.86

W_{per}=\frac{165 kg}{185 kg + 165 kg}*100=47.14

If, the compositions are constant, the only variables are the mass of each mixture used in the final one, so there can be only one independent balance.

8 0
3 years ago
Which statement about the melting and boiling points of water and fluorine molecules is true?
raketka [301]
This is right its C i got a 5/5 :)
3 0
3 years ago
Read 2 more answers
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