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Vadim26 [7]
3 years ago
5

9. Sodium reacts with water to produce sodium hydroxide and hydrogen gas, as shown below.

Chemistry
1 answer:
saveliy_v [14]3 years ago
4 0

Answer:

B

Explanation:

2Na + 2H2O2==NaOh + H2

184/23=x/18

x=(184×18)/23

x=144g

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The following pieces of evidence were found at separate explosion sites. For each item, indicate whether the explosion was more
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Explanation:

The major difference between low and high explosives is the rate of detonation. Low explosives detonate very slowly (less than 1,000 meters per second), whereas high explosives detonate very quickly (from 1,000 to 8,500 meters per second).

High explosives among the given list are Lead azide residues, Ammonium nitrate residues, and  Scraps of primacord. Whereas Nitrocellulose residues and, Potassium chlorate residues are low explosives.

7 0
3 years ago
What type of reaction is illustrated?
Paladinen [302]

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2 years ago
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Calculate the density of CO2 in g/cm3 at room temperature(25 degrees Celsuis) and pressure(1 atm) assuming it acts as an ideal g
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Answer:

density=1.8x10^{-3}g/mL

Explanation:

Hello,

Considering the ideal equation of state:

PV=nRT

The moles are defined in terms of mass as follows:

n=\frac{m}{M}

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P=\frac{m}{V} \frac{RT}{M}

Solving for m/V:

density= m/V=\frac{PM}{RT}

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density=\frac{(1atm)(44g/mol)}{[0.082atm*L/(mol*K)]*298.15K} \\density=1.8g/L=1.8x10^{-3}g/mL

Best regards.

8 0
3 years ago
Help me. please help me.
igor_vitrenko [27]
B- 90 grams bc 45 mL times 2 equals 90
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At what height the acceleration due to gravity of the earth become half ?​
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Acceleration due to gravity is reduced to half its value on the earth's surface at an altitude of 2.65×106 m

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