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2 years ago

10 To draw a perfect circle, you'll need: A A protractor B. A sextant С A compass D A spirograph 10 of 10

Chemistry

1 answer:

mestny [16]2 years ago

7 0

Answer:

Explanation:

Two quick google searches later I grace you with the google has bestowed upon me

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For the following reaction, 22.6 grams of nitrogen monoxide are allowed to react with 4.64 grams of hydrogen gas . nitrogen mono

antiseptic1488 [7]

Answer:

- 10.5 g of N₂

- Limiting reagent: NO

- 3.13 g of H₂ remains

Explanation:

First of all we state the reaction: 2NO(g) + 2H₂(g) → 2H₂O(l) + N₂(g)

We need to find out the limiting reactant and the excess reagent

Ratio in the reactants is 2:2. Let's convert the mass to moles:

22.6 g / 30 g/mol = 0.753 moles of NO

4.64 g / 2 g/mol = 2.32 moles of H₂

Certainly the limiting reagent is the NO and the excess reactant is the hydrogen:

- For 0.753 moles of NO, we need 0.753 moles of H₂ (we have 2.32 moles)

- For 2.32 moles of H₂, we need 2.32 moles of NO (and we don't have enough NO, because we only have 0.753 moles)

As the H₂ is the excess reagent, some moles still remains after the reaction is complete → 2.32 mol - 0.753 mol = 1.567 moles

We convert the moles to mass: 1.567 mol . 2g /1mol = 3.13 g of H₂ remains

As the NO is the limiting reagent, we can work with the equation:

We propose this rule of three: 2 moles of NO can produce 1 mol of N₂

Then, 0.753 moles of NO must produce (0.753 . 1) /2 = 0.376 moles of N₂

We convert the moles to mass 0.376 mol . 28 g / 1 mol = 10.5 g

3 0

3 years ago

Which basic property of a single water molecule accounts for all of its special features, including adhesion and cohesion, its a

svetlana [45]

The property is its polarity (or hydrogen bonds)

7 0

3 years ago

Convert 3.09 x 10~3 m = nm

Dmitriy789 [7]

3090000000nm

since there's 1m = 1000000000nm

6 0

3 years ago

A container of gas has a volume of 3.5 L and a pressure of 0.8 atm. Assuming the temperature remains constant, what volume of ga

vovikov84 [41]

<h3>Answer:</h3>

5.6 L

<h3>Explanation:</h3>

We are given;

Initial volume, V1 = 3.5 L
Initial pressure, P1 = 0.8 atm
Final pressure, P2 = 0.5 atm

We are required to calculate the final volume;

According to Boyle's law, the volume of a fixed mass of a gas and the pressure are inversely proportional at a constant temperature.

That is; P α 1/V
Mathematically, P=k/V
At two different pressure and volume;

P1V1 = P2V2

In this case;

Rearranging the formula;

V2 = P1V1 ÷ P2

= (0.8 atm × 3.5 L) ÷ 0.5 atm

= 5.6 L

Therefore, the resulting volume is 5.6 L

7 0

2 years ago

BRAINLIESTTT ASAP!! PLEASE HELP ME :)

AlladinOne [14]

Answer : False, there will be two lithium and one oxygen atoms in a unit molecular structure of lithium oxide.

Explanation:

Electronic configuration of lithium is :

$Li=1s^2s^1$

In order to attain stable electronic configuration it will loose an electron and form positively charge cation.

$Li^+=1s^22s^0$

The electronic configuration of oxygen is:

$O=1s^22s^22p^4$

Oxygen being second most electronegative atom requires two electrons to attain noble gas configuration stability and form negatively charge ion with 2- charge.:

$O^{2-}=1s^22s^22p^6$

When two atom of lithium and oxygen comes together , one electron from each lithium atom get transferred to an oxygen atom which results in formation of lithium oxide.

$2Li^++O^{2-}\rightarrow Li_2O$

4 0

2 years ago

Read 2 more answers

10 To draw a perfect circle, you'll need: A A protractor B. A sextant С A compass D A spirograph 10 of 10​

10 To draw a perfect circle, you'll need: A A protractor B. A sextant С A compass D A spirograph 10 of 10