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Lena [83]
3 years ago
5

Which is an example of a chemical change

Chemistry
2 answers:
pickupchik [31]3 years ago
7 0
The chemical change is substances that are changed into different substances like fireworks


hammer [34]3 years ago
4 0
Development of carbonation
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Hydrogen peroxide slowly decomposes in light:
IgorLugansk [536]

Answer:

Explanation: the answer is A

3 0
3 years ago
I will do anything if someone answers this like pleaseeee ...?
Musya8 [376]
I’d say C. It more inconsistent than D.
D & C are quite close.

Answer: C
7 0
3 years ago
For a gaseous reaction, standard conditions are 298 K and a partial pressure of 1 atm for all species. For the reaction N 2 ( g
GuDViN [60]

Answer:

ΔG = -52.9 kJ/mol

Explanation:

Step 1: Data given

Temperature = 298 K

All species have a partial pressure of 1 atm

Δ G ° = − 69.0 kJ/mol

Step 2: The balanced equation

N2(g) + 3H2(g) ⇆ 2NH3 (g)

Step 3: Calculate Q

we will use the expression: ΔG = ΔG° + RT*ln(Q)

⇒with Q = the reaction coordinate: Q = (PNH3)²/ ((PN2)*(Ph2)³) = 666.67

Step 4: Calculate ΔG

So, ΔG = -69.0 kJ/mol + (0.008314 kJ/mol*K)*(298 K)*ln(666.67) = -52.9 kJ/mol

(R = the gas constant = 8.314 J/mol* K OR 0.008314 kJ/mol*K)

4 0
3 years ago
In which of the following is the name and formula paired correctly?
Pavel [41]

Answer:

Stannic fluoride, SnF4

Explanation:

The chemical formula of Barium nitride is Ba(NO3)2.

The chemical formula of Cobaltous chloride is COCl2.

The chemical formula of Sodium Oxide is Na2O.

So the correct one is stannic fluoride, SnF4.

6 0
3 years ago
Read 2 more answers
All-sized companies are required to have a written fire prevention plan.
dlinn [17]

Answer: i say yes

and the information i got why is down below that way you can see if im right if you dont trust me

What OSHA standards require a fire prevention plan?

A fire prevention plan must be in writing, be kept in the workplace, and be made available to employees for review. However, an employer with 10 or fewer employees may communicate the plan orally to employees. The name or job title of employees responsible for the control of fuel source hazards.

Explanation:

While OSHA strongly recommends that all employers have an FPP, you are only required to have a fire prevention plan when an applicable OSHA standard requires it. Those standards include: Ethylene oxide, §1910.1047. Methylenedianiline, §1910.1050.

7 0
3 years ago
Read 2 more answers
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