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zysi [14]
4 years ago
14

Which statement about Dalton's law of partial pressure is true?

Chemistry
2 answers:
Molodets [167]4 years ago
6 0

The correct answer is

B-  The total pressure exerted by a mixture of gases is equal to the sum of the partial pressures of the gases in the mixture.

:)

tensa zangetsu [6.8K]4 years ago
4 0
Try B, i think the answer is B 
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Which step of the scientific method involves making an inference?
maria [59]

The only logical answer would be to D) draw a conclusion, given that an inference is another word for conclude. Helpful tip, if you are dealing with the scientific method just google the method and boom! there is your answer.


6 0
3 years ago
Read 2 more answers
Which orbital is the first to fill with electrons in a given principal energy level
KIM [24]
Orbital s is always the first one to fill up

6 0
3 years ago
44.90 g of reactants are placed in a beaker
sergiy2304 [10]

Answer:

D. -1882J

Explanation:

We can solve the energy released in a chemical reaction in an aqueous medium using the equation:

Q = -m*C*ΔT

<em>Where Q is energy (In J),</em>

<em>m is mass of water (45.00g)</em>

<em>C is specific heat of water (4.184J/g°C)</em>

<em>And ΔT is change in temperature (25.00°C - 15.00°C = 10.00°C)</em>

<em />

Replacing:

Q = -45.00*4.184J/g°C*10.00°C

Q = -1882J

Right answer is:

<h3>D. -1882J</h3>

<em />

7 0
3 years ago
Definition: This is a change in velocity per time.
ladessa [460]

Answer: acceleration

a = 5.36 m/s²

Explanation: solution attached:

Convert first 60 mi/h to m/s

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a = vf - vi /t

8 0
3 years ago
An electrochemical cell is powered by the half reactions shown below.
andrezito [222]
Reduction reactions are those reactions that reduce the oxidation number of a substance. Hence, the product side of the reaction must contain excess electrons. The opposite is true for oxidation reactions. When you want to determine the potential difference expressed in volts between the cathode and anode, the equation would be: E,reduction - E,oxidation. 

To cancel out the electrons, the e- in the reactions must be in opposite sides. To do this, you reverse the equation with the negative E0, then replacing it with the opposite sign. 

Pb(s) --> Pb2+ +2e-      E0 = +0.13 V
Ag+ + e-  ---> Ag           E0 = +0.80 V

Adding up the E0's would yield an overall electric cell potential of +0.93 V.
7 0
4 years ago
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