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il63 [147K]
3 years ago
10

Convert 10mg x cm/s^2 to Newtons (kg x m/s^2)

Chemistry
1 answer:
AlexFokin [52]3 years ago
5 0
10\frac{mg*cm}{s^{2}}=10\frac{0,000001kg*0,01m}{s^{2}}=1*10^{-7}\frac{kg*m}{s^{2}}
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Gas and liquid both take the shape of their container. The difference is gas molecules equally fills the space. Is there any more information?
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37.9 grams of an unknown substance undergoes a temperature increase of
jenyasd209 [6]

Answer:

1.023 J / g °C

Explanation:

m = 37.9 grams

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3 years ago
What is the empirical formula for a compound if a sample contains 3.72 g of P and 21.28 g of Cl
fenix001 [56]
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3 years ago
When 2 moles of Fe(s) react with Cl2(g) to form FeCl3(s) according to the following equation, 799 kJ of energy are evolved.
GenaCL600 [577]

Answer:

1. Exothermic.

2. -1598 kJ.

Explanation:

Hello!

1. In this case, according to the reaction, we can infer that 799 kJ of energy are evolved (given off, released) it means that the enthalpy of reaction is negative as the reactants have more energy than the products; which means this is an exothermic reaction.

2. Here, as we know that the enthalpy of reaction is -799 kJ/mol, we can compute the q-value as shown below, considering the reacted 2 moles of solid iron:

q=2mol*-799 kJ/mol\\\\q=-1598kJ

Which means that 1598 kJ of energy are evolved when 2 moles of solid iron react.

Best regards!

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C i took the test and got it correct

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2 years ago
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