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dalvyx [7]
3 years ago
11

What is chalk made of?

Chemistry
2 answers:
aksik [14]3 years ago
7 0
I think it is calcium carbonate, from sedimentary rocks and such
skelet666 [1.2K]3 years ago
6 0
Calcium carbonate
---------------------------
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Two soccer teams, the Bears and the Panthers, played games at the same time in two different locations. The Bears game was playe
motikmotik

Answer:

Bears

Explanation:

because starch is heavy and it requires a lot of oxygen in an environment. so having starch in an environment with less oxygen could probably cause fatigue

5 0
3 years ago
A/1 * B/C =D
Novay_Z [31]
<h3>Answer:</h3>

                  0.64 Moles of Propane

<h3>Explanation:</h3>

Data:

         Moles of Carbon  =  1.5 mol

         Conversion factor  =  7 mol C produces = 3 mol of Propane

Solution:

             As we know,

                7 moles of Carbon produces =  3 moles of Propane

Then,

            1.5 moles of Carbon will produce  =  X moles of Propane

Solving for X,

                     X =  (1.5 moles × 3 moles) ÷ 7 moles

                     X  =  0.6428571 moles of Propane

Or rounded to two significant figures,

                     X =  0.64 Moles of Propane

5 0
3 years ago
What is the reaction scheme for the experiment of synthesis of methyl salicylate
soldier1979 [14.2K]

The methyl salicylate (wintergreen oil) is the methyl ester of salicylic acid.

Methyl salicylate is produced by esterifying salicylic acid with methanol, the reaction scheme is attached to this answer. In the past, it was commonly distilled from the twigs of Betula lenta (sweet birch) and Gaultheria procumbens (eastern teaberry or wintergreen).

3 0
3 years ago
What is the symbol for gold
Slav-nsk [51]
The elemental symbol of gold is denoted on the periodic table as being Au.
5 0
4 years ago
What are five objects that are luminous
Nastasia [14]
Some examples:
- the sun
- a flashlight turned on
- a light bulb
- stars
- fireflies
...hope i helped :)
5 0
3 years ago
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