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Svetradugi [14.3K]
2 years ago
9

I'd: 9872093250, password: qqqqq, join the meeting​

Chemistry
2 answers:
Sladkaya [172]2 years ago
8 0
The password is suspicious
Ierofanga [76]2 years ago
7 0

Answer:

yoooolllllllooooh

Explanation:

scooby Doo bydoooonwhere are you?

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The alkali metals cesium (Cs) and rubidium (Rb) were discovered based on their characteristic flame colors. Cesium is named afte
Dmitry_Shevchenko [17]

well Cs=blue/violet and Rb= red

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3 years ago
How many significant figures are in the number 20300?​
arlik [135]

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3 0
3 years ago
A large pot (10 kg) of beef stew is left out on the kitchen counter to cool. The rate of cooling, in kJ/min, equals 1.955 (T-25)
olga_2 [115]

Answer:

16 minutes

Explanation:

First, we need to calculate the amount of heat needed to cool the beef stew:

Q = mcΔT

Where <em>m</em> is the mass, <em>c</em> is the heat capacity and <em>ΔT</em> is the variation of the temperature.

Q = 10x4x(40 - 90)

Q = -2000 kJ

So, the beef stew needs to lost 2000 kJ to cool.

With the initial temperature at 90ºC, the rate of cooling(r) will be:

r = 1.955x(90 - 25)

r = 127.075 kJ/min

So, to lose 2000 kJ, will be necessary:

t = Q/r

t = 2000/127.075

t = 16 minutes

5 0
3 years ago
3. An air mass that is cool and dry.
nata0808 [166]
Continental tropical would be the answer I think
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Read 2 more answers
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