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muminat
2 years ago
6

According to the following reaction, how many moles of oxygen gas are necessary to form 0.408 moles carbon dioxide?

Chemistry
1 answer:
Neporo4naja [7]2 years ago
3 0

Answer:

2 molecules of oxygen are necessary

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Which one is the correct response?
aleksklad [387]

The option that does not show the social benefit of sustainable waste management is leacha-te going into ground-water (Option D).

<h3>What is sustainable waste management?</h3>

The term sustainable waste management has to do with the process in which pollutants are taken care of in a way that does not affect the environment.

The option that does not show the social benefit of sustainable waste management is leacha-te going into ground-water (Option D).

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8 0
2 years ago
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Identify the state of matter for A, B, and C.
drek231 [11]

Explanation:

A) particles are close together in random positions with about equal kinetic energy and intermolecular forces.

These points are about liquid state.

B) particles are close together in fixed positions with low kinetic energy

These points satisfy the qualities of Solid state

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The above qualities are for Gaseous state of matter

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7 0
3 years ago
Find the density of a substance that has a mass of 75 g and a volume of 35 mL. Don't forget your units!
Andrew [12]

Answer:

The density of a substance that has a mass of 75 g and a volume of 35 mL is 2.14 \frac{g}{mL}

Explanation:

Density is a characteristic property of a substance that relates to the amount of mass it has per unit volume. In other words, density is the property that matter, whether solid, liquid or gas, has to compress into a given space (it measures the amount of mass in a given volume of a substance). It is calculated as the quotient between the mass of a body and the volume it occupies:

density=\frac{mass}{volume}

In this case, you know:

  • mass= 75 g
  • volume= 35 mL

Replacing:

density=\frac{75 g}{35 mL}

Solving:

density=2.14\frac{g}{mL}

<u><em>The density of a substance that has a mass of 75 g and a volume of 35 mL is 2.14 </em></u>\frac{g}{mL}<u><em></em></u>

5 0
3 years ago
At stp,a certain mass of gas occupies a volume of 790cm3. find the temperature at which the gas occupies 1000cm3 amd has a press
Luden [163]

The temperature : 332.75 K

<h3>Further explanation</h3>

Conditions at T 0 ° C and P 1 atm are stated by STP (Standard Temperature and Pressure). At STP, Vm is 22.4 liters / mol.

volume of gas = 790 cm³ = 0.79 L

mol of gas at STP :

\tt \dfrac{0.79}{22.4}=0.035

Use ideal gas :

\tt PV=nRT

P=726 mmHg=0.955 atm

V= 1000 cm³ = 1 L

\tt T=\dfrac{PV}{nR}\\\\T=\dfrac{0.955\times 1}{0.035\times 0.082}\\\\T=332.75~K

3 0
3 years ago
Which process wears away tell sandstone rock for nations due to wind
marta [7]

The process should be natural erosion

3 0
4 years ago
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