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Dafna11 [192]
3 years ago
7

A compound has an empirical formula of Na2CO3 and a molar mass of 318g/mol. Find its

Chemistry
1 answer:
GalinKa [24]3 years ago
3 0

Answer:4

Explanation:

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at a given tempature gas with a pressure of 150 kpa has volume of 0.8 l if the pressure decreases to 75kpa and the temperature r
vova2212 [387]
  <span>P*V/T=constant 
so P*V= constant*T 
if T doesn't change then 
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so 150kPa*0.8L=75kPa*xL 
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8 0
3 years ago
5. Rubbing alcohol is a commonly used disinfectant and has a cooling effect when applied to the skin. The active ingredient in r
WITCHER [35]

Answer:

Explanation:

70% (vol/vol) means

cotnaimns 70 %(vol/vol) 70 ml of isoprapnol is there in 100 ml of Rubbing sold alcohol.

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3 years ago
What are the best topics to write a project work on EVS and Chemistry​
professor190 [17]

Answer:

It is better to do chemistry

Explanation:

So that you will learn more of chemicals

6 0
2 years ago
Balanced equation of magnesium metal and hydrochloric acid
Setler79 [48]

The balanced chemical equation is,

2Mg+2HCl→2MgCl+H2↑

6 0
3 years ago
1. Una onda tiene una longitud de onda de 2 metros y una frecuencia de 1.5 Hz. ¿Cuál es su velocidad?
IrinaVladis [17]

Answer:

3 m/s

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usando la fórmula velocidad = frecuencia multiplicada por la longitud de onda.

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6 0
3 years ago
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