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AURORKA [14]
3 years ago
14

What happened to the reaction below

Chemistry
1 answer:
Citrus2011 [14]3 years ago
3 0

c the temperature is increased?5)

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The world, 6.83 billion people: Express the following population estimates for the year 2010 in nanomoles of people.
telo118 [61]

Answer:

1.13 x 10^-5

Explanation:

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3 years ago
How many kilocalories of heat are released when 75 g of steam at 100 degrees Celsius is converted to ice at 0 degrees Celsius?
VikaD [51]

Answer:

∴ Q = -7.52kCal

Explanation:

Using the formula for specific heat capacity:

Q = mcΔT

where ΔT = change in temperature (final - initial)  = (0 - 100)°C = -100°C

m = mass (g) = 75g

c = specific heat capacity = 4.2 J/g°C in water

⇒ Q = 75 × 4.2 × -100

= -31,500J

But 1J - 0.000239kCal

<u>∴ Q = -7.52kCal</u>

<u />

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3 years ago
How can I find the velocity?
34kurt

Answer:

The formula for velocity is v = Δs/Δt

Explanation:

Velocity equals change in speed divided by change in time.

3 0
3 years ago
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if we add mass to a paper airplane then the distance of the plane flies will increase or decrease why?
Ann [662]
It matters to the aerodynamics of it because sometimes it's good to have the weight but only if it can take it.
8 0
3 years ago
What system of units is used by only a small number of countries in the world, including the U.S.?
Aleks04 [339]

Answer:

The correct answer is the imperial system.

Explanation:

Only three countries in the world, that is, the United States, Myanmar, and Liberia use the imperial system. These include measurements in the form of inches, ounces, Fahrenheit, and feet. In the imperial system, the distances, height, weight, or area measurements are used eventually that traced back to everyday items or parts of the body.  

In comparison to other metric systems, the units used in the imperial system are not further differentiated easily into parts of hundreds or thousands, and are thus, regarded of less use in comparison to other metric systems by some. The real follower of the imperial system at present in the world is the United States.  

4 0
3 years ago
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