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Gekata [30.6K]
3 years ago
7

Need help in General Science II please help FAST!!!!!!!!!!!!!!!!!!

Physics
1 answer:
lilavasa [31]3 years ago
4 0
Hey~ :) So, For the first one...  
1. A pH scale<span> measures how much acidic or basic a substance is. </span>The pH scale usually ranges<span> from 0 to 14. .... </span>The pH scale would be, (0 - 14<span>), I think. SO the second one for 1. :) 

2. So, Since a</span><span>n </span>automobile battery<span> can explode or contain and cause a </span>sulfuric acid burn. I'm thinking it would be thee 1st one for the 2nd! :) sulfuric acid<span>

3. </span>Electrochemical and electrolytic reduction cleaning processes, so.... they are the most common techniques utilized to halt, stabilize, and even reverse the oxidation of the metal. So Overall I think this would most-likely Be electrolysis. 

4. Is 1, because, <span>pH of 1 (e) 

5.I am thinking this would Be </span>ion. Because, an ion is an atom or molecule with a net electric charge due to the loss or gain of one or more electrons.

HOPE IT HELPS!!!! :)
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What is the maximum mass that can hang without sinking from a 20-cm diameter Styrofoam sphere in water? Assume the volume of the
alex41 [277]

Answer:

the maximum mass that can hang without sinking is 2.93 kg

Explanation:

Given: details:

sphere diameter  d = 20 cm

so, radius r = 10 cm  = 0.10 m

density of the Styrofoam sphere D = 300 kg/m3

sphere volume  V = \frac{4}{3} \pi r^3

                                                   =\frac{4}{3} \pi 0.10^3

                                                   =4.18*10^{-3} m^3

we know that

Density = \frac{Mass}{Volume}

mass  M = Density * Volume

                                  = (300)(4.18*10^{-3} m3)

                                  =1.25 kg

mass of the water displace = volume *density  of water

                                                 = 4.18*10^{-3} m3 * 1000

                                                 = 4.18 kg

The difference between the mass of water and mass of styrofoam is the amount of mass that the sphere can support

=4.18 kg  -1.25 kg

= 2.93 kg

3 0
3 years ago
The medium through which a mechanical wave passes can be a solid, liquid, or gas. Properties of a wave change when it moves from
Tpy6a [65]

Answer:

Option A

Explanation:

Mechanical waves requires some medium to travel through. They travel faster in the dense medium as compared to a free medium.

The speed of a mechanical wave is fastest in the solid medium and the slowest in the gaseous medium. Hence, as the wave traverses from gaseous medium to the solid medium, its speed increases.

Thus, option A is correct

3 0
2 years ago
Please help I'll give brainliest!!
photoshop1234 [79]

Answer:

this may be wrong but when i looked it up it said “Seafloor Mapper”

Explanation:

4 0
3 years ago
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Artist 52 [7]

According to the Jefferson lab, "The scientific definition of work is: using a force to move an object a distance (when both the force and the motion of the object are in the same direction.)"

6 0
2 years ago
★CHECK MY ANSWER PLEASE★
Sergeu [11.5K]
You are correct!
Happy to assist you!
8 0
2 years ago
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