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Gnesinka [82]
3 years ago
6

How many mm are in 5 m

Chemistry
2 answers:
Alla [95]3 years ago
6 0

1 meter = 1000mm

* 5

5 meters = 5000mm

Furkat [3]3 years ago
3 0

Answer:5000

Explanation:

There are 1000 in each meter

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Natural gas or methane is a fossil fuel. In a plentiful supply of air, it burns to give carbon dioxide and water. Write a balanc
Alex17521 [72]

Answer:

CH_4 + 2O_2 --> CO_2 + 2H_2O

Explanation:

The chemical formula for methane is CH_4

The chemical formula for oxygen is O_2

The chemical formula for carbon dioxide is CO_2

The chemical formula for water is H_2O

Methane burns in oxygen to give carbon dioxide and water:

CH_4 + O_2 --> CO_2 + H_2O

The balanced equation that will ensure an equal number of each atom on the left and right-hand sides of the equation would be:

CH_4 + 2O_2 --> CO_2 + 2H_2O

3 0
3 years ago
A specific combination of bonded atoms which always react in the same way is known as
grigory [225]
A specific combination of bonded atoms which always react in the same way, regardless of the particular carbon skeleton is known as the functional group. These are specific groups of atoms or bonds within organic molecules that accounts for the characteristic chemical reactions of those molecules.  Examples of functional groups are the Carbonyl group, alkyl Halides, aldehydes and ketones among others.
4 0
4 years ago
A buffer solution is prepared by adding 13.74 g of sodium acetate (NaC2H3O2) and 15.36 g of acetic acid to enough water to make
hoa [83]

Answer:

A buffer solution is prepared by adding 13.74 g of sodium acetate (NaC2H3O2) and 15.36 g of acetic acid to enough water to make 500 mL of solution.

Calculate the pH of this buffer.

Explanation:

The pH of a buffer solution can be calculated by using the Henderson-Hesselbalch equation:

pH=pKa+log\frac{[salt]}{[acid]}

The pH of the given buffer solution can be calculated as shown below:

6 0
3 years ago
I have 1.30 atm of gas in a piston at a temperature of 250°C. If I cool the gas until the
Setler [38]

Answer:

epppppp000.55.1

Explanation:

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4 0
3 years ago
Acenapthalene has the empirical formula C6H5. A solution of 0.515 g of acenapthalene in 15.0 g CHCl3 boils at 62.5oC. The normal
german

Answer:

The molecular formula of an ascenapthalene is C_{12}H_{10}

Explanation:

\Delta T_b=K_b\times m

\Delta T_b=K_b\times \frac{\text{Mass of acenapthalene}}{\text{Molar mass of acenapthalene}\times \text{Mass of chloroform in Kg}}

where,

\Delta T_f =Elevation in boiling point = (62.5-61.7)^oC=0.8^oC

Mass of acenapthalene = 0.515 g

Mass of CHCl_3 = 15.0 g = 0.015 kg (1 kg = 1000 g)

K_b = boiling point constant = 3.63 °C/m

m = molality

Now put all the given values in this formula, we get

0.8^0C=3.67 ^oC/m\times \frac{0.515}{\text{Molar mass of acenapthalene}\times 0.015kg}

\text{Molar mass of acenapthalene}=155.7875 g/mol

Let the molecule formula of the Acenapthalene be C_{6n]H_{5n}

6n\times 12 g/mol+5n\times 1 g/mol=155.7875 g/mol

n = 2.0

The molecular formula of an ascenapthalene is C_{12}H_{10}

4 0
3 years ago
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