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Diano4ka-milaya [45]
3 years ago
5

Surface tension of solid,liquid and gas​

Chemistry
1 answer:
Arisa [49]3 years ago
4 0

Explanation:

<h3>Surface tension is the tendency of liquid surfaces to shrink into the minimum surface area possible. Surface tension allows insects, usually denser than water, to float and slide on a water surface.</h3>

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Explain how this change will impact the transfer of thermal energy in the solar cooker design and describe one possible design i
katen-ka-za [31]

Answer:it conduct thermal conductivity because of the heat it holds

Explanation:

3 0
3 years ago
Make a neutral Beryllium atom by adding protons, neutrons and electrons. Now, what would you do to make a
Alenkinab [10]

Answer:

4 protons, 5 neutrons, 4 electrons to have the neutral Be atom

the only way to make a negative Be is to have more than 4 electrons

Explanation:

Make a neutral Beryllium atom by adding protons, neutrons and electrons. Now, what would you do to make a

beryllium atom with a negative charge?

Be has an atomic number of 4, an atomic mass 9

its atomic number tells us it has 4 protons, with a +4 charge

its atomic mass = neutrons + protons, so it has 5 neutrons with no charge

its neutral atom will have 4 electrons each with a negative charge to balance the +4 total proton harge.

so

4 protons, 5 neutrons, 4 electrons to have the neutral Be atom

to make a negative Be species, it still must have an atomic number of 4,

or it is not Beryllium

so the only way to make a negative Be is to have more than 4 electrons

3 0
3 years ago
The nuclear mass of 56fe is 55.9207 amu. calculate the binding energy per nucleon for 56fe.
Aneli [31]

Fe (iron) has 26 protons,30 neutrons and 26 electrons. In order to calculate the binding energy, first you need to find the total mass of all particles in the nucleus:

<span>
<span>26 x mass of proton + 30 x mass of neutron ( all in a.m.u.) = say "m" </span></span>

<span>
Mass defect is m- 55.9207 amu, then convert it into grams and put in equation E = mc2 to get binding energy of Fe.</span>

<span> Divide it by number of nucleons to get binding energy per nucleon</span>.

8 0
3 years ago
Read 2 more answers
What organelle acts as a barrier of the cell? ​
olganol [36]

Answer:

cell membrane

Explanation:

it controls what comes and goes out of a cell

6 0
2 years ago
Read 2 more answers
If MnSO4 → Mno+ SO3 is not a synthesis reaction, then what type of reaction is it?
9966 [12]
<h2>Decomposition</h2>

Explanation:

A synthesis reaction is a type of chemical reaction in which two or more simple substances combine to form a more complex product.

Since there is only one reactant and it is broken into smaller components,

it is not a synthesis reaction.

A decomposition reaction is a type of chemical reaction in which one reactant yields two or more products.

Since in our question,there is one reactant and it is broken to yield two products,it is a decomposition reaction.

6 0
3 years ago
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