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slava [35]
3 years ago
8

“Aqueous calcium hydroxide reacts with carbon

Chemistry
1 answer:
bulgar [2K]3 years ago
6 0

Answer:

B. Ca(OH)2(s)+CO2(aq)-CaCO3(s)+H2O(aq)

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What volume of a 1.50 m hcl solution should you use to prepare 2.00 l of a 0.100 m hcl solution?
katen-ka-za [31]
<span>(2.00 L) x (0.100 M HCl) / (1.50 M HCl) = 0.133 L</span>
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3 years ago
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Calculate the fraction of lattice sites that are schottky defects for cesium chloride at its melting temperature (645oc). assume
baherus [9]
Answer : 7.87 X 10^{-6}.

Explanation : To find the fraction of schottky defects in the given lattice of CsCl,

we use the formula, \frac{N_{s} }{N}} = exp ( \frac{-Q_{s}}{2KT} )

on solving with the given values ,Q_{s}= 1.86 eV and T as 645 + 273 K and rest are the constants.

\frac{N_{s} }{N}} = exp ( \frac{-1.86 eV}{2 X (8.62 X 10^{-5}) X (645 +273)} )

we get the answer as 7.87 X 10^{-6}.
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3 years ago
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How many joules would it take to raise 2 grams of AL 1 degree?
denis23 [38]

Explanation:

Air has a heat capacity of about 700 Joules per kg per °K and a density of just 1.2 kg/m3, so its initial energy would be 700 x 1 x 1.2 x 293 = 246,120 Joules

4 0
2 years ago
A person has 5.0 liters of blood which contains 95 mg of glucose per 100 ml. What is the total mass of glucose (in grams) in the
vampirchik [111]
Use conversion factors to calculate this answer. Since there are 1000 ml in a liter, this means that there is 95 mg of glucose in 0.1 liter. To add on, since there is 1000 mg in a gram, this means that there is 0.095 grams in 0.1 liters. 5 liters of blood is 0.1 x 50 = 5.0. Hence, you would need to multiply 0.095 x 50, which is equates to about 4.75 grams of glucose in 5.0 liters of blood.

Don’t forget the significant figures, 4.75 is rounded to 4.7 because the significant figures in this case is 2 sig figs (5.0 liters of blood).
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What can cause an object to move??
Troyanec [42]

Answer:

unbalanced forces can cause an object to move.

Explanation:

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