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2 years ago

What is Force? I'll Mark BRAINLIEST

Chemistry

2 answers:

Luda [366]2 years ago

5 0

Answer:

A push or pull is referred to as a force. Forces can cause objects to move, slow, stop, or change the direction in which they travel. The force of gravity, for example, pulls all objects toward the Earth's center. Every time two things interact, a force is exerted on each of them. When this happens, the two items no longer feel the force after the interaction ends.

Mnenie [13.5K]2 years ago

3 0

Explanation:

Force is that external physical cause which changes or tends to change:

the Direction of a moving body,
the dimensions of a non-rigid body,
state of rest or motion condition of a body.

hope this helps you.

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What do element; atoms; molecule; chemical bond; compound; mixture; and substance have in common

sleet_krkn [62]

They are all things you can do to elements on the periodic table?

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3 years ago

14. An enzyme-catalyzed reaction was carried out with the substrate concentration initially a thousand times greater than the Km

emmainna [20.7K]

Answer:

27 min

Explanation:

The kinetics of an enzyme-catalyzed reaction can be determined by the equation of Michaelis-Menten:

$v = \frac{vmax[S]}{Km + [S]}$

Where v is the velocity in the equilibrium, vmax is the maximum velocity of the reaction (which is directed proportionally of the amount of the enzyme), Km is the equilibrium constant and [S] is the concentration of the substrate.

So, initially, the velocity of the formation of the substrate is 12μmol/9min = 1.33 μmol/min

If Km is a thousand times smaller then [S], then

v = vmax[S]/[S]

v = vmax

vmax = 1.33 μmol/min

For the new experiment, with one-third of the enzyme, the maximum velocity must be one third too, so:

vmax = 1.33/3 = 0.443 μmol/min

Km will still be much smaller then [S], so

v = vmax

v = 0.443 μmol/min

For 12 μmol formed:

0.443 = 12/t

t = 12/0.443

t = 27 min

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3 years ago

Which indicator most likely suggests that a chemical change is taking place? 1)change in size 2)change of color 3)change of stat

Tresset [83]

Out of the options, the best indicator is a color change since it is the only one that can't really be blamed on a physical change. you will eventually notice that during qualitative labs and some quantitative labs, usually the thing that you are looking for is either color change or the production of a precipitate to indicate the presence of a chemical reaction

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3 years ago

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All elements are made up of atoms. ➢ Atoms are made up of protons, neutrons, and electrons. Two different kinds of atoms can combine to form a compound. A molecule is a combination of atoms that cannot be broken apart while still retaining the same properties as the larger substance that it is a part of.

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3 years ago

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vaieri [72.5K]

The answer is False. The formation of the moon did not cause the Paleozoic extinction. The moon formed during the Precambrian era.

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3 years ago

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What is Force? I'll Mark BRAINLIEST ​

What is Force? I'll Mark BRAINLIEST