2 years ago

Developing countries use many more resources than do developed countries. True False

Chemistry

1 answer:

Svetach [21]2 years ago

8 0

I will have to say that this statement is true

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What coefficient should be placed before 02?<br> 2S+ __02 → 2S03

Trava [24]

Explanation:

$\tt{2S+6O_2\implies{2SO_3} }$

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A molecule involves two atoms in a chemical bond that do what share?

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B. Share Electrons.
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You measure salt water in a tank to have a density of 1.02 g/mL. A balloon weighs 2.0 g and you weights have a mass of 30.0 g ea

Elden [556K]

Weight of the balloon = 2.0 g

Six weights each of mass 30.0 g is added to the balloon.

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Calculating the volume from mass and density:

$182g*\frac{mL}{1.02g} =178mL$

Converting the volume from mL to cubic cm:

$178 mL * \frac{1cm^{3} }{1mL} =178cm^{3}$

Assuming the balloon to be a sphere,

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$178 cm^{3} = \frac{4}{3}(\frac{22}{7})r^{3}$

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3 years ago

In the space provided, for each element, type the ionic charge of an atom with a full set of valence electrons. Then, type the n

kobusy [5.1K]

11. ionic charge +1, helium.

12. ionic charge 2-, neon.

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3 years ago

One method of favoring the formation of an ester is to add excess acetic acid.

AleksandrR [38]

Answer: True

Explanation:

An ester refers to the class of organic compounds which react with water in order to produce organic acids, inorganic acids or alcohol. They are usually gotten from carboxylic acids.

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2 years ago