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djyliett [7]
4 years ago
14

Earth is a single interconnected system. True False​

Chemistry
1 answer:
telo118 [61]4 years ago
3 0

Answer:

True

Explanation:

Earth is a single interconnected system but it can be subdivided into smaller systems.

You might be interested in
If you have 2.4x10^24 atoms of copper, how many moles of copper do you have
zysi [14]
2.4x10^24/6.022x10^23= 4.00
3 0
4 years ago
QUESTION 21 The combustion of ammonia in the presence of excess oxygen yields NO 2 and H 2O: 4 NH 3 (g) 7 O 2 (g) 4 NO 2 (g) 6 H
Harrizon [31]

Answer:

The answer to your question is 47.44 g of Oxygen

Explanation:

Data

mass of Ammonia = 14.4 g

mass of Oxygen = ?

Balanced chemical reaction

                 4NH₃  +  7O₂  ⇒  4NO₂  +  6H₂O

Process

1.- Calculate the molar mass of Ammonia

NH₃ = 4[(1 x 14) + (3 x 1)] = 4[14 + 3] = 4[17] = 68 g

2.- Calculate the molar mass of Oxygen

O₂ = 7[16 x 2] = 7[32] = 224 g

3.- Use proportions to calculate the mass of Oxygen

                     68g of NH₃ --------------------- 224 g of O₂

                      14.4 g of NH₃ -----------------  x

                       x = (14.4 x 224) / 68

                       x = 3225.6/ 68

                       x = 47.44 g

5 0
3 years ago
Tamica has two objects of the same size.the first item sinks while the second item floats.which item has the larger mass.
sdas [7]
The first object because the more mass the hard it is to hold and the density it has which is the mass, the reason why one sunk and the other didn’t is because the higher the mass the faster the object would sink
7 0
4 years ago
A 0.245-L flask contains 0.467 mol co2 at 159 °c. Caculate the pressure using Van der Walls equation
AlladinOne [14]

Answer:

The right answer is "60.56 atm".

Explanation:

As we know,

Vander wall's equation is:

⇒ (P+\frac{n^2 a}{v^2} )(v-nb)=nRT

or,

⇒ P=\frac{nRT}{(v-nb)}-\frac{n^2 a}{v^2}

Here,

a = 3.59 L² atm mol⁻²

b = 0.0427 L mol⁻¹

By putting the values in the above equation, we get

⇒ P=\frac{0.467\times 0.0821\times 432}{0.245-0.467\times 0.0427}

       =\frac{(0.467)^2\times 3.49}{(0.245)^2}

       =73.61-13.05

       =60.56 \ atm

8 0
3 years ago
Momentum is. __________
horrorfan [7]
 is the product of the mass and velocity of an object, quantified in kilogram-meters per second. 
7 0
3 years ago
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