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raketka [301]
3 years ago
9

Which of the following exerts the greatest pressure on the ground?

Chemistry
2 answers:
NikAS [45]3 years ago
7 0
Pressure = (weight) / (area supporting the weight).

From the fraction, you can see that <em>more weight </em>produces more pressure,
and <em>less area</em> produces more pressure. 

So, for the greatest pressure, you want the greatest weight supported by
the smallest area.

That would be the 55-kg boy, standing on one foot.
Andrei [34K]3 years ago
5 0
A 55-kg boy standing on one foot is my answer. When you stand on two feet, you don't really exert a lot of pressure because your weight is resting on two feet. And 55-kg sure weighs more than 35. so my answer is 2.
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Please Help!!!
STatiana [176]

Answer:

single replacement

Explanation:

Step 1: Data given

single replacement = A reaction in which one element replaces a similar element in a compound. For example, a metal replaces an other metal.

The general form of a single-replacement (also called single-displacement) reaction is:

A+BC→AC+B

Decomposition = a reaction in which a compound breaks down into two or more simpler substances. The general form of a decomposition reaction is:

AB→A+B

Synthesis =  A reaction that occurs when one or more compounds combines to form a complex compound:

A + B → AB

Double replacement: a reaction in which the positive and negative ions of two ionic compounds exchange places to form two new compounds.

The general form of a double-replacement reaction is:

AB+CD→AD+BC

Combustion reaction = a reaction in which a substance reacts with oxygen gas, releasing energy in the form of light and heat. Combustion reactions must involve  O2  as one reactant.

The reaction Zn + 2HCl → ZnCl2 + H2

⇒ Does not involve O2 = NOT a combustion reaction

⇒ The compounds do not form a complex compound = NOT a synthesis

⇒ A compound does not break down into smaller substances = NOT a decomposition

⇒ There is a replacement between Zn and H. This is a <u>single replacement</u>, not a double replacement reaction.

6 0
3 years ago
How is the formula for hydrogen different from the formula for helium gas​
creativ13 [48]
Helium is monotonic
4 0
3 years ago
2 HCl + Na2SO4 &gt; 2 NaCl + H2SO4
Cerrena [4.2K]

Answer:

15

Explanation:

8 0
2 years ago
Which of the following is a good conductor of electricity?
maks197457 [2]

Answer:

Explanation:

Iron is the correct answer

3 0
2 years ago
Read 2 more answers
The images show two unrelated events occurring at separate times.
trapecia [35]

Event 1 is an example of a chemical reaction.

<u>Explanation:</u>

Whenever if two solutions are mixed, then if there is any color change, or evolution of any vapors, bubbles or gas formation or if there is any formation of a color or white precipitate confirms that the occurrence of a chemical reaction.

If nothing happens said above then it is said that there is no chemical reaction occurs.

Here in the event 1 a clear liquid in one beaker poured into clear liquid in beaker 2 then there is a formation of orange liquid, which means there is a formation of a new colored liquid confirms that the chemical reaction occurred.

4 0
3 years ago
Read 2 more answers
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