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Veronika [31]
3 years ago
5

For any object in motion, distance is always _________ displacement

Chemistry
1 answer:
finlep [7]3 years ago
8 0

Distance and displacement are two quantities that may seem to mean the same thing yet have distinctly different definitions and meanings.


Distance is a scalar quantity that refers to "how much ground an object has covered" during its motion.

Displacement is a vector quantity that refers to "how far out of place an object is"; it is the object's overall change in position.

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A force is acting on a moving object that causes it to slow down. No other forces are acting on
bagirrra123 [75]

Answer:

Friction is the force between an object in motion and the surface on which it moves. Friction is the external force that acts on objects and causes them to slow down when no other external force acts upon them.

7 0
3 years ago
How many grams of H2 will be produced from 12 grams of Mg according to the following equation?
LUCKY_DIMON [66]

Answer:

0.98 g of H₂

Explanation:

the balanced equation for the reaction is

Mg + 2HCl ---> MgCl₂ + H₂

molar ratio of Mg to H₂ is 1:1

number of Mg moles reacted = 12 g/ 24.3 g/mol = 0.49 mol

according to molar ratio

when 1 mol of Mg reacts 1 mol of H₂ is formed

therefore when 0.49 mol of Mg reacts - 0.49 mol of H₂ forms

therefore mass of H₂ formed = 0.49 mol x 2 g/mol = 0.98 g

mass of H₂ formed is 0.98 g

7 0
3 years ago
What is the electron configuration of Iron
Novay_Z [31]

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5 0
3 years ago
Methanol (methyl alcohol, CH₃OH), is a very important industrial chemical. Formerly, methanol was prepared by heating wood to hi
katrin [286]

Answer:

CO(g) + 2H₂(g) → CH₃OH(l)

Explanation:

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The reactants are CO and H₂ and the product CH₃OH:

CO(g) + H₂(g) → CH₃OH(l)

To balance the equation, the elements must have the same amount on each side. C and O are balanced, but there is 4H in the product and only 2 in the reactant, so we multiply H₂ for 2:

CO(g) + 2H₂(g) → CH₃OH(l)

And the equation is balanced.

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<h3>How space shuttles move?</h3>

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3. When the meteors hit the atmosphere, meteors rub against air particles and create friction which is heating the meteors. The heat vaporizes most meteors, creating what we call shooting stars.

Learn more about atmosphere here: brainly.com/question/24925283

6 0
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