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777dan777 [17]
3 years ago
6

I WILL GIVE BRAINLIST IF YOU DO THIS

Chemistry
1 answer:
LuckyWell [14K]3 years ago
8 0

Answer for number 1.   Weight is the force of gravity. It acts in a downward direction—toward the center of the Earth.

Lift is the force that acts at a right angle to the direction of motion through the air. Lift is created by differences...

Thrust is the force that propels a flying machine in the direction of motion. Engines produce thrust.

2. For an airplane to takeoff, thrust must be greater than drag and lift must be greater than weight. To maintain level flight, lift must equal weight and thrust must equal drag. For landing, thrust must be less than drag, and lift must be less than weight.

3.When the forward forces are bigger than the opposing forces, you speed up (accelerate). As you go faster, the force of air resistance pushing back on you increases. Eventually, the forces become balanced (the forward forces are the same size as the opposing forces). Once the forces become balanced, your speed stays the same.

4.Every object on Earth has weight, a product of both gravity and mass. A Boeing 747-8 passenger airliner, for instance, has a maximum takeoff weight of 487.5 tons (442 metric tons), the force with which the weighty plane is drawn toward the Earth.

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In the essay box, compose a scientific report which includes your observations, data, and conclusions. The following questions s
timama [110]

Answer:

1. It depends what type of method you are using. if it is Height x Width x Length then it will not work for an irregular shape because it has extra pieces that would not be included.

2. The second method would work for both regular and irregular shapes because you would have to know or find out the volume of the regular shape to get the volume for the irregular shape.

3. It also depends on what you are doing, if you are doing a regular shape then use the first method, if it's an irregular shape then use the second method, if you do the maths correctly both should give you an accurate answer for what you want to achieve.

4. No, because the sugar would dissolve.

5. No, on this case the displacement method would not work because of the weight difference

Explanation:

All the answers for you!

4 0
3 years ago
Molar mass is measured in units of
blsea [12.9K]
D. grams/ mole.
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5 0
3 years ago
Gaseous methanol (CH4O) reacts with oxygen gas to produce carbon dioxide gas and liquid water. Balanced the equation using the l
NikAS [45]

Answer:

The sum of the coefficients in the balanced equation is 11

Explanation:

A reaction where an organic compound reacts with oxygen to produce carbon dioxide and water is called combustion.

The balance reaction of combustion for methanol is:

2CH₃OH (l) + 3O₂(g) →  2CO₂(g)  +  4H₂O (g)

Coefficients from stoichiometry are 2, 3, 2 and 4

Sum =  2 + 3 + 2 + 4 = 11

4 0
3 years ago
Which statements describe polyatomic ions? Check all that apply.
Leya [2.2K]

<em>Statements describe polyatomic ions</em>

<em>-Polyatomic ions have many charges.</em>

<em>-Polyatomic ions attract other ions to form ionic bonds.</em>

<em>-Polyatomic ions are made up of two or more types of atoms.</em>

<em></em>

<h3><em>Further explanation</em></h3>

The terms atom, ion, element and compound are used in chemistry

• Atom is the smallest material consisting of a nucleus, which contains protons, neutrons, and electrons, Atom is neutral or not charged.

An element can be an atom or element molecule. Atoms such as Ag (argon), Fe (Iron). If it is a molecule, it ‘ll be an atomic combination of the same type, for example: O₂,

• Molecules are neutral particles consisting of two or more atoms , it can be a same or different

- If it is consists of atoms of the same element is called the Element molecule, for example: N₂, Cl₂

- If it consists of different types of element atoms called Compound molecules, for example: H₂SO₄, NaOH

Monatomic molecules are single atoms that are not bound to other atoms such as elements for example  He gas (Helium) or Ag (Argon)

Diatomic molecules are molecules formed from two atoms such as elemental molecules N₂, H₂, Cl₂, F₂

• Ions are electrically charged atoms. Informing ions, an atom will release or bind electrons.

Atoms with low ionization energy (especially from groups IA or IIA in the periodic system will tend to release electrons, whereas atoms with large electron affinity energy, especially groups VIA or VIIA will tend to bind electrons

This is where ion bonds will occur because of the attractive attraction between negative ions and positive ions

Ions which are positively charged are called cations, while negatively charged ions are called anions.

Ions that have one atom are called single ions, while 2 atoms or more are called polyatomic ions

So atoms can release and bind electrons so that they form ions

Example:

single ion: Na⁺, Al³⁺, Ca²⁺, F⁻, S²⁻

poly atomic ion: SO₄²⁻, NO₃⁻, PO₄³⁻

So the correct answer is:

Polyatomic ions have many charges.

Polyatomic ions attract other ions to form ionic bonds.

Polyatomic ions are made up of two or more types of atoms.

<h3><em>Learn more</em></h3>

the atoms that belong to the same element://brainly.com/question/12758274

<h3><em>Answer details </em></h3>

Grade: Senior High School

Subject: Chemistry

Chapter: Atomic Structure

Keywords: ion, polyatomic, ionic bonds, atom

5 0
3 years ago
Read 2 more answers
Express 14.80 × 12.10 × 5.05 in scientific notation with the proper significant figures.
Naya [18.7K]
9.04354 * 10^2

The “*” identifies as a multiplication sign. Hope this helps
8 0
3 years ago
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