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3 years ago

How would i know if yall give the write answer on Brainly.com?

Chemistry

2 answers:

chubhunter [2.5K]3 years ago

6 0

Answer:

because or at least a can

Explanation:

jolli1 [7]3 years ago

5 0

Answer:

there isn't a true way, but if you look at someone's profile and see how many people that person helped and people thanked him than that can be a good way to know

Explanation:

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9. A family is driving to a nearby city. If they travel an average 68 miles per hour for 3.2 hours how

Nataliya [291]

All you have to do is multiply 68 miles and 3.2 hours. It will give you the answer, 217.6 mph.

68x3.2=217.6 miles per hour.

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3 years ago

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One organism benefits while another is unaffected. This statement best describes _____________________.

zavuch27 [327]

Answer:

Hello There!!

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The answer is=>Commensalism.

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Identify all of the physical changes that take place during the making of the omelet.

8_murik_8 [283]

Cutting pepper
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3 years ago

Allotropes are different molecular forms of an element, such as dioxygen (O₂) and ozone (O₃). (b) Calculate the ratio of densiti

kipiarov [429]

The ratio of densities, d₀₃/d₀ is 3:2

We know that at STP all gas have the same volume that is $22.4 \mathrm{~L}$ .

Dioxygen $1 \mathrm{mLe} \mathrm{O}_{2}=32 \mathrm{gm} / \mathrm{moL} .$

Ozone 1 mole $\mathrm{O}_{3}=48 \mathrm{gm} / \mathrm{mol}$ .

$\begin{aligned} \therefore \text { density of } \mathrm{O}_{2} \text { at STP } &=\frac{\text { mass of } \mathrm{O}_{2}}{\text { volume }} \\ \text { or, } d_{\mathrm{O}_{2}} &=\frac{32 \mathrm{gm} / \mathrm{mol}_{\mathrm{o}}}{22.4 \mathrm{~L}} \end{aligned}$

$\therefore$ The ratio of densities,

$\frac{d_{3}}{d o_{2}}=\frac{\frac{48 \mathrm{gm} / \mathrm{mol}}{22.4 \mathrm{~L}}}{\frac{32 \mathrm{gm} / \mathrm{mol}}{22.4 \mathrm{~L}}}$

$\frac{d 0_{3}}{d 0_{2}}=\frac{3}{2}$

do3: do2 = 3:2

Oxygen is found naturally as a molecule. two oxygen atoms strongly bind together with a covalent double bond to shape dioxygen or O2. Oxygen is normally observed as a molecule. it is referred to as dioxygen.

After hydrogen and helium, oxygen is the third most plentiful element in the universe and the most established element in the world. two atoms of the factors combine to generate dioxygen, an odourless and colourless diatomic gasoline with the formulation O2, at ordinary temperature and stress.

Learn more about dioxygen brainly.com/question/19905677

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2 years ago

What is the 112th element

neonofarm [45]

Symbol: Cn
Element: Copernicium
Atomic mass: [277]
Atomic number: 112

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3 years ago

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