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kykrilka [37]
3 years ago
10

Each year, the science club puts on a science show for the students in the elementary school. Luis is planning demonstrations to

show properties of metals. For one property, he decides to use a ball of pizza dough and a rolling pin. Which property of metals is Luis most likely going to demonstrate using these materials
Chemistry
2 answers:
Luda [366]3 years ago
7 0

Explanation:

Metals are the elements which contain more number of electrons.

Some properties of metals are as follows.

  • Metals have shiny surface.
  • Metals are malleable, i.e, they can be drawn into thin sheets.
  • Metals are ductile, i.e, they can be drawn into thin wires.
  • Metals have high melting and boiling point.

Thus, when Luis decides to use a ball of pizza dough and a rolling pin then it represents the property of malleability, that is, with the help of rolling pin pizza dough can be drawn into thin sheet.

Harlamova29_29 [7]3 years ago
6 0

Mallebility, I got it right on the unit test.

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Why is the base of an energy pyramid wider than the top
Zepler [3.9K]

It is due to a lack of providable energy to the next trophic level of the energy pyramid. Primary consumers only obtain around 10% of energy that producers have, and the energy depletes as you move further and further up the food chain, until you reach the tertiary consumers which have the least amount of energy at their disposal, meaning there are less of them than other organisms further down the energy pyramid.


Hope this helped!

5 0
3 years ago
What happens to the atoms during a chemical reaction
Likurg_2 [28]

Answer:

Atoms get rearranged and make up different molecules. No atoms are created nor destroyed.

Explanation:

6 0
2 years ago
What is the temperature difference if 300 cal are used to warm water
PIT_PIT [208]

Answer:

<u>The temperature difference is</u> \frac{300}{m} Kkg^{-1}

Explanation:

The formula that is to used is :

ΔQ=msΔT

<em>where ,</em>

  • <em>ΔQ is the heat supplied in calories = 300cal</em>
  • <em>m is the mass of water taken = m (assumed)</em>
  • <em>ΔT is the change in temperature</em>
  • <em>s is the specific heat of water = 1calK^{-1}Kg^{-1}</em>

ΔT :

\frac{300}{m*1} \\=\frac{300}{m} Kkg^{-1}

6 0
3 years ago
Which metal reacts quickest in this group (Li, Na, K, Rb and Cs) Why?
Tamiku [17]
Ok so all are in the alkali family also they are all metals and in group 1 but I think the one that might reacts quickest is Li because it has less AMU
3 0
3 years ago
you are given a solution of lead nitrate. use any of the solution used in this experiment to form a white precipitate of lead ch
Vesnalui [34]

We have as a reagent a salt, lead nitrate (Pb(NO3)2), and an unknown solution that gives us as a product lead chloride (PbCl2). That is, the solution must contain chlorine.

If a chlorine solution is used we will have the following reaction:

Pb(NO_{3)2}+2Cl^-\rightarrow PbCl_2+2NO^-_3

So, with a chlorine solution, we will have a white precipitate of lead chloride.

7 0
1 year ago
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