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Naya [18.7K]
3 years ago
8

I need to write the safety for my sci project. My project was me seeing how long my dog plays with each toy. If you don't know w

hat safety means it means what did you make sure to do for the project to be safe.​
Chemistry
1 answer:
SSSSS [86.1K]3 years ago
5 0

You could say that you played outside so you or your dog didn't hit anything important/fragile.

You could say that you played with his/her favourite soft toys, so that you didn't hurt anyone or again break anything.

You can say that you did your tests in a safe place where no one could get hurt.

Hopefully this helps, let me know if you need more answers.

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How many grams of oxygen gas are required to produce 65.75 grams of steam?
Nana76 [90]

Answer:

The mass of oxygen gas required to produce 65.75 grams of steam is approximately 162.2 grams

Explanation:

From the question, we have the following chemical reaction equation;

2C₃H₁₈(l) + 25O₂ (g) → 16CO₂(g) + 18H₂O (g)

The molar mass of oxygen, O₂ = 32 g/mol

The molar mass of steam, H₂O = 18.01528 g/mol

25 moles of oxygen are required to produce 18 moles of steam

Therefore, according to  Proust's law of definite proportions;

(32 × 25) g of oxygen are required to produce (18 × 18.01528) g of steam

65.75 g of steam will be produced by (32 × 25)/(18 × 18.01528) × 65.75 g ≈ 162.2 g of oxygen O₂.

3 0
2 years ago
Which of the following statements best compares the wavelengths of the regions of the electromagnetic spectrum? O Microwaves are
scZoUnD [109]

Answer:

infrared waves are longer than gamma rays

Explanation:

according to the order :

radio, microwaves, infrared, light, ultraviolet, X-ray, gamma rays

radio waves have the highest wavelenght and lowest frequency, gamma rays have the highest frequency and lowest wavelength.  

5 0
3 years ago
A sample of gas occupying 350 mL at 25 C is cooled to -25 C. What volume will it occupy if the pressure is held constant?
leonid [27]

Answer:

I hac no ideasghjjbhnn

7 0
3 years ago
Describe three different scenarios where a chemical process or reaction shows an increase in entropy.
Jet001 [13]
The request is characterized as knowing where things are and having the capacity to discover and utilize the things. 
In a compound procedure, there is more issue, more entropy when the particles 
1. warm up, increment in temperature. The atoms are more disorganized 
2. get stirred up and must be isolated with exertion. Bedlam. 
3. state changes, dissolves, vaporizes. The atoms are more turbulent 
4. respond to frame a pack of various particles. More disorder
4 0
3 years ago
Balance the following equations. Do not include the states of matter.<br><br> (a) C + O2 → CO
krek1111 [17]

Answer:

C + O2 → CO2

Explanation:

C + O2 → CO ----------------- (1)

from equ (1) on reactant side, C has 1 mole, O has 2 moles

from equ (1) on product side, C has 1 mole, O has 1 mole

Thus, to balance the equation, O should have 2 moles

C + O2 → CO2

7 0
3 years ago
Read 2 more answers
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