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Natali [406]
3 years ago
10

Calculate a sm for the equation below. (Round to the nearest whole number.) 4NH, (g) +50, (g) → 4NO(g) + 6H2O(g) = 192.8 J/mol K

SH = 205.0 J/mol K S. SHO = 188.83 J/mol K So = 210.8 J/mol K AS JIK​
Chemistry
2 answers:
Nookie1986 [14]3 years ago
5 0

Answer:

the answer is 180 j/k i think

Explanation:

zzz [600]3 years ago
5 0

Answer:

79 and 180

Explanation:

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What general rule can be followed when choosing a type of solvent for a particular solute
ehidna [41]
General 'rule' - "like dissolves like". The solubility of a solute in a solvent (that is, the extent of the mixing of the solute and solvent species) depends on a balance between the natural tendency for the solute and solvent species to mix and the tendency for a system to have the lowest energy possible.

Hope this helps :p
4 0
3 years ago
Which one of the following is a correct representation of an alpha particle?
Alex Ar [27]

Answer:

₂He⁴  

Explanation:

Alpha radiations are emitted as a result of radioactive decay. The atom emit the alpha particles consist of two proton and two neutrons. Which is also called helium nuclei. When atom undergoes the alpha emission the original atom convert into the atom having mass number less than 4  and atomic number less than 2 as compared to parent atom the starting atom.

Properties of alpha radiation:

Alpha radiations can travel in a short distance.

These radiations can not penetrate into the skin or clothes.

These radiations can be harmful for the human if these are inhaled.

These radiations can be stopped by a piece of paper.

₉₂U²³⁸   →   ₉₀Th²³⁴  + ₂He⁴  + energy

6 0
3 years ago
60 grams of ice will require _____ calories to raise the temperature 1°C.
guajiro [1.7K]

Answer:

60 grams of ice will require 30.26 calories to raise the temperature 1°C.

Explanation:

The amount of heat (Q) to raise the temperature of 60.0 g of ice by 1°C can be calculated from:

<em>Q = m.c.ΔT,</em>

where, Q is the amount of heat released or absorbed by the system.

m is the mass of the ice (m = 60.0 g).

c is the specific heat capacity of ice (c = 2.108 J/g.°C).

ΔT is the temperature difference (ΔT = 1.0 °C).

∴ Q = m.c.ΔT = (60.0 g)(2.108 J/g.°C)(1.0 °C) = 126.48 J.

<em>It is known that 1.0 cal = 4.18 J.</em>

<em>∴ Q = (126.48 J)(1.0 cal / 4.18 J) = 30.26 cal.</em>

7 0
3 years ago
A.<br> Na3PO4 + _HCI - H3PO, + _NaCl<br> What type of reaction and balance the equation
myrzilka [38]

Answer:

Molar Mass

Explanation:

5 0
2 years ago
Read 2 more answers
2AgNO3 (aq) + BaCl2 (aq)<br> --&gt;<br> 2AgCl (s) + Ba(NO3)2 (aq)
dimaraw [331]

2AgCl (s) + Ba(NO3)2 (aq)

6 0
3 years ago
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