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2 years ago

Solid A and solid B were dissolved into two separate graduated cycliders

Chemistry

2 answers:

ZanzabumX [31]2 years ago

8 0

Answer:

C. The dissolving reaction of A was exothermic and the dissolving of reaction B was endothermic

Explanation:

Here is stuff to help you:

Hope this helps! Please let me know if you need more help, or if you think my answer is incorrect. Brainliest would be MUCH appreciated. Have a great day!

−xXheyoXx

dolphi86 [110]2 years ago

6 0

Answer:

C) The dissolving reaction of A was exothermic, and the dissolving reaction of B was endothermic.

Explanation:

hope this helps :)

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Which object would best be identified by a periodic Doppler shift in a star's spectrum along with a dip in the stars light inten

IgorLugansk [536]

The answer would be a planet. Planets revolve around stars, which means there will come a point where the planet is between the star and our field of vision towards the star. This point will be where the star's radiation will have the lowest intensity. As the planet moves, the intensity will change. The effect is comparable to a lunar or solar eclipse.

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3 years ago

Why is 99 not a prime number

Mice21 [21]

Explanation:

99 is not a prime number because it can be multiplied by itself and by other numbers

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3 years ago

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A sample of gas in a 14.6 L flexible container is at 25.0oC and 1.00atm. What is the volume of the sample when heated to 220.0oC

inn [45]

Answer: 24.1 L

Explanation:

To calculate the final temperature of the system, we use the equation given by Charles' Law. This law states that volume of the gas is directly proportional to the temperature of the gas at constant pressure.

Mathematically,

$\frac{V_1}{T_1}=\frac{V_2}{T_2}$

where,

$V_1\text{ and }T_1$ are the initial volume and temperature of the gas.

$V_2\text{ and }T_2$ are the final volume and temperature of the gas.

We are given:

$V_1=14.6L\\T_1=25.0^oC=(25+273)K=298K\\V_2=?\\T_2=220.0^0C=(220+273)K=493K$

Putting values in above equation, we get:

$\frac{14.6}{298K}=\frac{V_2}{493}\\\\V_2=24.1L$

Thus the volume of the sample when heated to 220.0oC and the pressure is constant is 24.1 L

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3 years ago

What would be the electron configuration of a sulfur ion S−2?

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It's either B or C heh

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4 years ago

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Will you be my Magnesium, Silver, Nitrogen but "9.8m/s²" is silent? Please help me here

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I don’t really understand but the symbols of these elements on the periodic table are

MgAgN

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If you take out the ‘g’s from the periodic table equation(bc the question says 9.8m/s^2 is silent) it spells MAN

So the question could be “Will you be my man?”

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3 years ago