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gizmo_the_mogwai [7]
3 years ago
10

Fill in the word that completes each statement. Building up electric charges on a Van de Graaff generator is an example of stati

c . Lightning is an example of static .
Chemistry
2 answers:
lianna [129]3 years ago
8 0

Answer:

The correct answers are electricity and discharge

Explanation:

Van de Graaff generator is an electrostatic generator. It is used for producing high voltage static electricity. It consists of a hollow metal sphere. The charges is accumulated on it from continuous motion of the belt which is made of an insulating material.

Due to polarization, the charges builds up on an object. Van de Graaf generator is an example of static charge.

Static discharge occurs when the built-up charges flow from the object. Lightning is an example of static discharge. Lightning occurs when the clouds having an opposite charges collide each other.

Therefore, building up electric charges on a Van de Graaff generator is an example of static electricity. Lightening is an example of static discharge.

<h2>PLEASE MARK AS BRAINLEIST</h2>

steposvetlana [31]3 years ago
3 0

Answer:

electricity, discharge

Explanation:

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suter [353]

Answer:

valence electron

Explanation:

mark it as brainliest and plz follow me

8 0
3 years ago
3. Given 20g of Barium Hydroxide, how many grams of
anastassius [24]

The number of grams of ammonium nitrate (NH₄NO₃) it would take for all the barium hydroxide to react is 18.7g

First, we will write the balanced chemical equation for the reaction

The balanced chemical equation for the reaction is

Ba(OH)₂ + 2NH₄NO₃ → 2NH₄OH + Ba(NO₃)₂

This means, 1 mole of barium hydroxide is required to react with 2 moles of ammonium nitrate

Now, we will calculate the number of moles of barium hydroxide present.

Mass of barium hydroxide (Ba(OH)₂) = 20 g

Using the formula

Number\ of\ moles = \frac{Mass}{Molar\ mass}

Molar mass of Ba(OH)₂ = 171.34 g/mol

∴ Number of moles of Ba(OH)₂ present =\frac{20}{171.34}

Number of moles of Ba(OH)₂ present = 0.116727 mole

Now,

Since 1 mole of barium hydroxide is required to react with 2 moles of ammonium nitrate

Then,

0.116727 mole of barium hydroxide will react with 2 × 0.116727 mole of ammonium nitrate

2 × 0.116727 = 0.233454 mole

∴ Number of moles of NH₄NO₃ required is 0.233454 mole

Now, for the mass of ammonium nitrate (NH₄NO₃) required

From the formula

Mass = Number of moles × Molar mass

Molar mass of NH₄NO₃ = 80.043 g/mol

∴ Mass of NH₄NO₃ required = 0.233454 × 80.043

Mass of NH₄NO₃ required = 18.68636 g

Mass of NH₄NO₃ required ≅ 18.7g

Hence, the number of grams of ammonium nitrate (NH₄NO₃) it would take for all the barium hydroxide to react is 18.7g

Learn more on determining mass of reactant required here: brainly.com/question/11232389

6 0
2 years ago
Which element could be an isotope of the atom?
Anna35 [415]
Element which possess different number of "Neutrons" in different situations could be an isotope of the atom

Ex. - 17 Cl 34, 17 Cl 35, 17 Cl 36

They all the isotopes.

Hope this helps!
4 0
4 years ago
Use the diagram to answer each question.
Naya [18.7K]

Answer:

84g Thus, 84g of KNO3 must be dissolve in 100 grams of water to form a saturated solution at 50 oC.

and 136 of KNO3 must be dissolve in 100 grams of water to form a saturated solution at 70 oC.

Explanation:

4 0
3 years ago
What is NaHCO3??? Explain.​
jeka94

Answer:

Sodium hydrogen carbonate

7 0
2 years ago
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