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Sophie [7]
3 years ago
9

Which of the following is a pure substance? A. Air B. carbon dioxide C. soda D. salt water

Chemistry
2 answers:
VLD [36.1K]3 years ago
6 0
Hey There,

The answer to your Problem is 

B. Carbon Dioxide

If this Helps May I have Brainliest?
uysha [10]3 years ago
4 0
B- Carbon dioxide, every other option listed is composed of more than one thing.
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What is the thermal energy needed to completely melt 9.60 mol of ice at 0.0 C
inysia [295]
The  thermal energy  needed to  completely  melt  9.60  mole  of ice  at  0.0 C  is    57.8   Kj

        Explanation
ice  melt  to  form   water

The molar  heat of fusion  for   water  is  6.02  Kj/mol
Thermal energy =  moles  x  molar  heat  of  fussion  for water

=9.6  mol  x6.02 kj/mol =57.8  Kj
4 0
3 years ago
Read 2 more answers
013 10.0 points
34kurt

Answer:

this isn't immediately clear, it can be seen in ... CO2? 1. 6.0 × 10−23 g. 2. 44 g. 3. 7.31 × 10−23 g correct. 4. 6.0 × 10. 23 g. 5. 7.31 × 10 ... 40.0 grams of S will react leaving 10.0 grams. S unreacted. 013. 10.0 points ... FeCl2 and K2CO3 is ... 9. 1. There is no reaction. 2. KCl electrolyte. 3. CO2 gas. 4. FeCO3 precipitate. correct.

Explanation:

5 0
3 years ago
A force of 100 newtons is applied to a box at an angle of 36º with the horizontal. If the mass of the box is 25 kilograms, what
notka56 [123]

Answer:

a_x=4.944m/s^2

Explanation:

Hello,

Based on the acting force that is applied horizontally, one can propose the following equation based on Newton's laws:

F=ma

Nevertheless, since we've got a angled force, it becomes:

F=macos\theta

In this case, cos\theta accounts for the formed angle, so the horizontal acceleration turns out into:

a_x=\frac{F}{mcos\theta}=\frac{100kg*\frac{m}{s^2} }{25kgcos(36^0)}=4.944m/s^2

Best regads.

5 0
3 years ago
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tensa zangetsu [6.8K]
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B, Ge - Both are metaloids
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4 0
3 years ago
How is the food in a stomach broken down into simpler substances? What chemicals help this process?
Ksenya-84 [330]

Answer:

with the help of the juice contained in it

4 0
3 years ago
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