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3 years ago

PLEASE HELP I WILL NAME BRAINLIEST TO WHOEVER GETS IT RIGHT!!!

Chemistry

2 answers:

Lemur [1.5K]3 years ago

7 0

100 feet
when you use the force's formula to calculate it, the force exerted by 100 feet will be greater than 50 feet.

Nana76 [90]3 years ago

5 0

100 feet.

Here’s my point of view: okay so consider it, this water balloon... is dropped 50 feet. It hits you. It is definitely gonna hurt but let’s consider 100 feet. Fifty feet won’t hurt near as bad because the balloon dropped at one hundred feet has more time on the way down to gain speed. Here is our answer. Just as with a car... the faster it’s going, the more impact it will make on whatever it hits. SPEED AND FORCE are my two words I want to highlight.

I really hope this helps you understand. Have a great evening.
~Brooke

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If water and hydrogen peroxide both consist of hydrogen and oxygen atoms, explain why they have different chemical and physical

lana [24]

Water and hydrogen peroxide are different compounds although they have the same kind of atoms. The molecular formula of water is H2O (two atoms of oxygen chemically bonded to one atom of oxygen). The molecular formula of hydrogen peroxide is H2O2, (each atom of oxygen is chemical bonded to one atom of H and other atom of O). So, the presence of different chemical bonds leads to different products with different chemical properties.

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3 years ago

Calculate the mass defect for the formation of phosphorus-31. The mass of a phosphorus-31 nucleus is 30.973765 amu. The masses o

Nata [24]

Answer: The mass defect for the formation of phosphorus-31 is 0.27399

Explanation:

Mass defect is defined as the difference in the mass of an isotope and its mass number.

The equation used to calculate mass defect follows:

$\Delta m=[(n_p\times m_p)+(n_n\times m_n)]-M$

where,

$n_p$ = number of protons

$m_p$ = mass of one proton

$n_n$ = number of neutrons

$m_n$ = mass of one neutron

M = mass number of element

We are given:

An isotope of phosphorus which is $_{15}^{31}\textrm{P}$

Number of protons = atomic number = 15

Number of neutrons = Mass number - atomic number = 31 - 15 = 16

Mass of proton = 1.00728 amu

Mass of neutron = 1.00866 amu

Mass number of phosphorus = 30.973765 amu

Putting values in above equation, we get:

$\Delta m=[(15\times 1.00728)+(16\times 1.00866)]-30.973765\\\\\Delta m=0.27399$

Hence, the mass defect for the formation of phosphorus-31 is 0.27399

8 0

3 years ago

A certain metal M forms a soluble sulfate salt MSO, Suppose the left half cell of a galvanic cell apparatus is filled with a 3.0

dimaraw [331]

Explanation:

It is known that for high concentration of $M^{2+}$ , reduction will take place. As, cathode has a positive charge and it will be placed on left hand side.

Now, $E^{o}_{cell}$ = 0 and the general reaction equation is as follows.

$M^{2+} + M \rightarrow M + M^{2+}$

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= $-\frac{0.0591}{2} log (5 \times 10^{-2})$

= 0.038 V

Therefore, we can conclude that voltage shown by the voltmeter is 0.038 V.

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The answer is intermediate, so E.

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il63 [147K]

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