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PolarNik [594]
2 years ago
6

What mass of nitrogen is required to react with 16 grams of oxygen?

Chemistry
1 answer:
damaskus [11]2 years ago
8 0

Answer:

14g

Explanation:

N2 + 2O2 => 2 NO2

Molar mass of O2 = 32g/mol

No of mol= 16/32 = 0.5 mol

2 moles of Oxygen react with 1 mol of N2

1 mol of oxygen react with X mol of N2

X = 0.5mol

Molar mass of N2 = 28g/mol

No of mol = mass/molar mass

Mass = 0.5 × 28 = 14g.

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2 years ago
"Two major varieties of igneous rock are _______ and ________. What is the difference between these two types of igneous rock?"
grandymaker [24]

Answer:

Intrusive and Extrusive igneous rocks.

Explanation:

Igneous rocks are defined as those rocks that are formed when magma undergoes the process of crystallization and solidification at or below the earth's surface. For example, Granite, Rhyolite, Gabbro and Diorite.

The igneous rocks are of two different types, namely-

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3 years ago
If you know the mass of Earth, what other single value would you need to know to calculate Earth's average density?
Dennis_Churaev [7]

Answer:

Volume

Explanation:

Density:

Density is equal to the mass of substance divided by its volume.  In order to find the density of earth when mass is given we have to calculate its volume. The volume of earth is calculated by using the volume formula for sphere. i.e 4/3 π r³. we also require radius to find the volume and we know that

Diameter = 2 × radius

The diameter of earth equator is 12756.75 Km. So we calculate the radius by dividing the diameter by 2. Then by putting the value of radius in 4/3 π r³ we will get the volume and then we can calculate the density of earth.

Units:

SI unit of density is Kg/m3.

Other units are given below,

g/cm3, g/mL , kg/L

Formula:

D=m/v

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Symbol:

The symbol used for density is called rho. It is represented by ρ. However letter D can also be used to represent the density.

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3 years ago
Carnegie Development stages
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Stage 2: 2-3 days.

Stage 3: 4-5 days.

Stage 4: 6 days.

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Stage 6: c. 17 days.

Stage 7: c. 19 days.

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Choose the correct answer. The color of the iguana is an adaptation to its:
Lady_Fox [76]

Answer:

B

Explanation:

so that way they can hide away from the predators

3 0
2 years ago
Read 2 more answers
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