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2 years ago

Which answer accurately describes the difference between speed and velocity?

Chemistry

2 answers:

olga55 [171]2 years ago

6 0

i just took the test and it said that this is the answer

Speed is the distance per unit of time. Velocity is the displacement per unit of time

irakobra [83]2 years ago

5 0

I think the correct answer from the choices listed above is the second option. The difference between speed and velocity would be that speed requires distance. Velocity requires displacement. Speed only has a magnitude while velocity is a vector quantity which means it has direction and magnitude.

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Elza [17]

Poop and poopie

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2 years ago

Hydrogen is prepared commercially by the reaction of methane and water vapor at elevated temperatures. CH₄(????) + H₂O(????) ⇌ 3

sammy [17]

Answer:

6.2846

Explanation:

Given that:-

Concentrations at equilibrium :-

$[CH_4]=0.126\ M$

$[H_2O]= 0.242\ M$

$[CO]= 0.126\ M$

$[H_2]= 1.15\ M$

The equilibrium reaction is:-

$CH_4+H_2O\rightleftharpoons 3H_2+CO$

The expression for equilibrium constant is:

$K_{c}=\frac {\left [ H_2 \right ]^3\left [ CO \right ]}{\left [ CH_4 \right ]\left [ H_2O \right ]}$

Applying the values as:-

$K_c=\frac{1.15^3\times 0.126}{0.126\times 0.242}=6.2846$

The equilibrium constant for the reaction is:- 6.2846

5 0

3 years ago

What is the edge length of a 377-g iron cube? (The density of iron is 7.86 g/cm^3, and the volume of a cube is equal to the edge

VashaNatasha [74]

Answer:3.50 cm

Explanation:

6 0

2 years ago

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Any method of determining whether an event or object is older or younger than others

Inga [223]

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3 years ago

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The strength of an acid is affected by the polarity of the bond connected to the acidic hydrogen. The more highly polarized this

alexgriva [62]

Answer:

Explanation:

Oxyacids are acid containing oxygen; they are also known as acid-alcohol or acid-phenol. As said earlier, the strength of these acids increases with increases in the polarity of these compounds. So, what makes the polarity is as a result of the electronegative substituents attached to it. Halogen family possesses the highest electronegativity in the periodic table, and electronegativity decreases down the group.

The ranking of the oxyacids in order of decreasing acid strength from strongest to weakest acid is:

HClO3 > . HClO2 > HClO > HBrO

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2 years ago