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2 years ago

CH4(g)+O2(g)→CO2(g)+H2O(g). What mass of water is produced from the complete combustion of 5.00×10−3 g of methane?

Chemistry

1 answer:

bixtya [17]2 years ago

4 0

Answer:

1gram of water

Explanation:

First balance the equation

Ch4+2O2>CO2+2H2O

Ratio is 1:2

500×10-3what about 2?

500×10-3×2=1g

1g of water

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Which of the following statements correctly characterizes the subatomic particle

vichka [17]

Answer:

Its mass is about the same as that of a proton

Explanation:

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2 years ago

300 moles of sodium nitrite are needed for a reaction. the solution is 0.450 m. how many ml are needed?

miv72 [106K]

Answer:

$\boxed{\text{667 000 mL}}$

Explanation:

$\text{Molar concentration} = \dfrac{\text{moles}}{\text{litres}}\\\\c = \dfrac{n}{v}$

Data:

c = 0.450 mol·L⁻¹

n = 300 mol

Calculation:

$\begin{array}{rcl}0.450 & = & \dfrac{300}{V}\\\\0.450V& = & 300\\\\V & = & \dfrac{300}{0.450}\\\\V & = & \text{667 L} =\textbf{667 000 mL}\end{array}\\\text{The volume of solution needed is }\boxed{\textbf{667 000 mL}}$

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3 years ago

In the mathematical equation showing that pressure (P) multiplied by volume (V) remains equal to a constant (k) pressure and vol

hram777 [196]

Answer:

Inversely

Explanation:

pV = k

When p increases, V must decrease for k to remain constant.

When V increases, p must decrease for k to remain constant.

When the product of two variables is a constant, they are inversely proportional to each other.

3 0

3 years ago

Molecular energies can be expressed as the sum of 4 components: translational, rotational, vibrational, and electronic. Let thes

VikaD [51]

Answer:

The general form of a partition function is a sum over the states of the system,

Explanation:

qTr + qRo+ qVi +qEl= Qt

Qt= total energy

5 0

3 years ago

Julie's science teacher asked her to use quantitative observation to distinguish between 3 metal cylinders to identify aluminum,

SVETLANKA909090 [29]

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It may be possible to distinguish these three metals visually, based on color, but the instructions have stated to use quantitative observation.

8 0

3 years ago