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gtnhenbr [62]
3 years ago
11

Compare the hardness of gypsum to an everyday substance. (site 3)

Chemistry
2 answers:
Nonamiya [84]3 years ago
7 0

Gypsum can be scratched by a fingernail, glass, any coin, nail, or drill. Gypsum has a hardness equivalent to drywall or a chalkboard.

Rom4ik [11]3 years ago
6 0

<span>Hardness is the opposition that materials offer to alterations such as penetration, abrasion, scratching, shearing, and permanent deformations among others. During the course of history, during the study and classification of minerals, there was a moment when it became pertinent to establish a method that would allow to discern the different degrees of hardness of rocks and minerals.</span>
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When a liquid boils or evaporates to become a gas, the molecules separate into individual atoms.
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Answer:

true

Explanation:

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Hey student made a model of a river in a sandbox a pile of sand represents soil and bits of rocks in the riverbed water pouring
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When a teacher dilutes 50 mL of 2.0 M NaOH to 0.50 M, what volume of NaOH results?
JulijaS [17]

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= 200 mL

Explanation:

Using the dilution formula;

M1V1 = M2V2 ;

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6 0
3 years ago
A.Which facilities contribute the most to recycling and the least to recycling based on the pie chart graphic?
nirvana33 [79]

Answer:

a) To determine the facilities that contribute the most to recycling check the pie chart and select the facility with the largest portion while to determine the facilities that contribute the least to recycling check the pie chart and select the facility with the smallest portion

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c) It saves energy through recycling. It helps sustains the environment. It decrease the emission of green house gases

Explanation:

The question is not complete

a) Pie chart is the graphical representation of information in which the information is represented in a circle. The circle is divided into segments and the portion with the largest segment has the highest percentage.

To determine the facilities that contribute the most to recycling check the pie chart and select the facility with the largest portion while to determine the facilities that contribute the least to recycling check the pie chart and select the facility with the smallest portion

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c) It saves energy through recycling. It helps sustains the environment. It decrease the emission of green house gases.

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3 years ago
Which diagram is correct
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