All categories

3 years ago

Look at the chemical equation:

Chemistry

2 answers:

lbvjy [14]3 years ago

4 0

Answer:

On both sides of the equation, there are 5 atoms of H

Explanation:

H₂ is a dyatomic molecule, so it has 2 atoms.

In ammonia, there are 3 atoms of H plus 1 atom of N.

Korvikt [17]3 years ago

3 0

Answer:

Explanation:

Hello,

In this case, based on the given balanced chemical reaction, one notices that at the reactants there are six hydrogens as its stoichiometric coefficient is 3 and its subscript 2, therefore by multiplying the result is 6. On the other hand, at the products, we see 2 as the ammonia's stoichiometric coefficient and 3 as the hydrogen's subscript, therefore, by multiplying the result is 6 which substantiates the reaction as correctly balanced.

Best regards.

You might be interested in

Given the reaction at 101.3 kPa and 298 K: hydrogen gas + iodine gas -> hydrogen iodide gas This reaction is classified as

MaRussiya [10]

This is classified as a "Formation Reaction"

6 0

4 years ago

What are the properties of aluminium and their use

Wewaii [24]

Answer: Answers are in bulleted lists.

Explanation: Aluminum...

has a low density
is non-toxic
has a high thermal conductivity
has excellent corrosion resistance
can be easily cast, whether it's machined or formed.

Uses:

Aeroplane Parts
Cans
Window frames
Beer kegs
Foils
Kitchen utensils

Have a great day! :)

6 0

3 years ago

Which statement about erosion is true? Most erosion occurs too slowly to observe. Most erosion occurs too quickly to observe, Er

olganol [36]

Answer:

Erosion can happen very quickly or very slowly.

e.g splash erosion occurs slowly while gulley erosion occurs very fast.

7 0

3 years ago

If you have a chemical reaction and there are 36 grams of reactant. How much product are you going to have to have?

kolezko [41]

Answer:

Explanation:

products and reactants have to be equal

7 0

3 years ago

A gas mixture at 535.0°C and 109 kPa absolute enters a heat exchanger at a rate of 67.0 m3/hr. The gas leaves the heat exchanger

SVEN [57.7K]

Answer:

the heat rate required to cool down the gas from 535°C until 215°C is -2.5 kW.

Explanation:

assuming ideal gas behaviour:

PV=nRT

therefore

P= 109 Kpa= 1.07575 atm

V= 67 m3/hr = 18.6111 L/s

T= 215 °C = 488 K

R = 0.082 atm L /mol K

n = PV/RT = 109 Kpa = 1.07575 atm * 18.611 L/s /(0.082 atm L/mol K * 488 K)

n= 0.5 mol/s

since the changes in kinetic and potencial energy are negligible, the heat required is equal to the enthalpy change of the gas:

Q= n* Δh = 0.5 mol/s * (- 5 kJ/mol) =2.5 kW

7 0

3 years ago