3 years ago

What reaction would take place if hot tugsten was surrounded by air?

1 answer:

8 0

The reaction that would take place if hot tungsten was surrounded by air is that it would react to the oxygen in air to form non conducting tungsten oxide and burns out instantly.

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At equilibrium the partial pressures of N2O4 and NO2 are 0.35 atm and 4.3 atm. What is the Kp

ale4655 [162]

Answer:

Kp = 52.83

Explanation:

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3 years ago

An organic solvent has a density of 1.31g/ml. What volume is occupied by 50.0g of the liquid?

vesna_86 [32]

Answer:

38.16 mL

Solution:

Data Given;

Density = 1.31 g/mL

Mass = 50 g

Volume = ?

Formula Used;

Density = Mass ÷ Volume

Solving for Volume,

Volume = Mass ÷ Density

Putting values,

Volume = 50 g ÷ 1.31 g.mL⁻¹

Volume = 38.16 mL

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3 years ago

Which of the following ions is formed when a base is dissolved in a solution?

Aneli [31]

Answer:

$\huge\boxed{\sf OH-}$

Explanation:

<u>According to Arrhenius concept of acid and base:</u>

"When a base in a solution, produces/yields OH- (Hydroxide) ions."

So, when a base is dissolved in a solution, it produces OH- ions.

<u>For example:</u>

NaOH ⇄ Na⁺ + OH⁻ (So, it is a base)

$\rule[225]{225}{2}$

Hope this helped!

3 0

2 years ago

Which atom has five electrons in its outer level and 10 electrons in the inner energy levels

Sever21 [200]

Oxygen 47 Hydrogen 63

Silicon 28 Oxygen 25.5

Aluminum 7.9 Carbon 9.5

Iron 4.5 Nitrogen 1.4

Calcium 3.5 Calcium 0.31

Sodium 2.5 Phosphorus 0.22

Potassium 2.5 Chlorine 0.03

Magnesium 2.2 Potassium 0.06

Titanium 0.46 Sulfur 0.05

Hydrogen 0.22 Sodium 0.03

Carbon 0.19 Magnesium 0.01

All others <0.1 All others <0.01 Living matter

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3 years ago

The difference between An atom and an element <br>

andreev551 [17]

Answer:

there is your answer hopefully it helps you out

5 0

3 years ago