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ValentinkaMS [17]
3 years ago
13

an engineer chooses to use a composite material that incorporates concrete and recycled glass for the floors of a new building.

This is an example of
Chemistry
2 answers:
amid [387]3 years ago
8 0
Green Design is your answer. :)
german3 years ago
7 0

Answer:

Green design

Explanation:

APEX answer

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Please help!
Dahasolnce [82]

Answer:

reproduction

Explanation:

reproduction, process by which organisms replicate themselves

6 0
2 years ago
Is phosphorous dissolving in carbon disulfide a physical or chemical property? if physical, is it intensive or extensive?
Nana76 [90]

Answer:  Phosphorus is insoluble in water, but soluble in carbon disulfide. Phosphorus burns spontaneously in air to its pentoxide.

Explanation: Hope this helped! :)

3 0
3 years ago
Read 2 more answers
There are two naturally occurring isotopes of boron. 10 B has a mass of 10.0129 u. 11 B has a mass of 11.0093 u. Determine the a
Vanyuwa [196]
<h2>Natural Abundance for 10B is 19.60%</h2>

Explanation:

  • The natural isotopic abundance of 10B is 19.60%.
  • The natural isotopic abundance of 11B is 80.40%.
  • The isotopic masses of boron are 10.0129 u and 11.009 u respectively.

For calculation of abundance of both the isotopes -

Supposing it was 50/50, the average mass would be 10.5, so to increase the mass we need a more percentage of 11.

Determining it as an equation -

10x + 11y= 10.8

x+y=1 (ratio)

10x + 10y = 10

By taking the denominator away from the numerator

we get;

y = 0.8

x + y = 1

∴ x = 0.2

To get percentages  we need to multiply it by 100

So, the calculated abundance is 80% for 11 B and 20% 10  B.

5 0
3 years ago
30 points if you can help me with this chemistry question
PIT_PIT [208]

answer:

i am pretty sure you use cross charges for this.

so i think it is the third choice.

5 0
2 years ago
Milk of magnesia helps to neutralize stomach acid because it is a
dimulka [17.4K]
*base
a base is added to an acid to neutralize it.
3 0
3 years ago
Read 2 more answers
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