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Alisiya [41]
3 years ago
11

List the following elements in order of INcreasing number of valence electrons: C, Cl, As, Na, He

Chemistry
1 answer:
Murljashka [212]3 years ago
7 0

Answer:

He, Cl, As, C, Na

Explanation:

^^

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What observations can you make about this group of people? Name one inference you can make from your observations.​
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Temperature cloud cover and thunder are all examples of
Umnica [9.8K]

Temperature, cloud cover and thunder are all examples of weather.  

<h3><u>Explanation:</u></h3>

Weather is described as conditions that prevail for a short period of time and the above-mentioned factors change variably throughout the day. Cloud cover simply describes the clouds coverage in the sky. It is one factor that is used to describe weather conditions since the type of clouds indicates prevailing weather.

For example, the presence of cirrus means there will be a storm in 24 to 48 hours. Weather conditions characterized by thunder is said to be stormy and it also has other conditions such as lightning, wind and fast rain with heavy raindrops. Temperature affects the warmness and coldness of the air and its movement. Moreover, it also affects all other aspects of weather conditions.

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Convert 1.5 km to millimeters, and express the result in scientific notation.
Grace [21]
The answer is 1.5e+6. Hope this helped!
7 0
3 years ago
A bike rider approaches a hill with a speed of 8.5 m/s. The total mass of the bike and the rider is 85 kg. Find the kinetic ener
krek1111 [17]

KE=3070.625 J

Height = 3.686 m

<h3>Further explanation</h3>

mass of bike+rider=85 kg

velocity = 8.5 m/s

\tt KE=\dfrac{1}{2}mv^2\\\\KE=\dfrac{1}{2}\times 85\times 8.5^2\\\\KE=3070.625~J

Conservation of energy :

(KE+PE)₁ (downhill) = (KE+PE)₂ (up the hill)

PE₁=0⇒h=0

KE₂=0⇒v=0(stop), so equation becomes :

KE₁=PE₂

\tt KE_1=3070.625\\\\KE_1=mgh_2\\\\3070.625=85\times 9.8\times h\Rightarrow h=3.686~m

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3 years ago
GIVING 25 POINTS PLUS BRAINLIEST FOR CORRECT ANSWERS!!!!
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The answer to your question is:

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e) 9.10 x 10³ + 2.2 x 10⁶ = 2.2091 x 10⁶

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g) 6.18 x 10⁻⁴⁵ + 4.72 x 10⁻⁴⁴ = 5.338 x 10⁻⁴⁴

h) 4.25 x 10⁻³ - 1.6 x 10⁻² = -0.01175 = -1.175 x 10 ⁻²

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b) 2.26 x 10¹³

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e) 2.5 x 10⁻⁸³

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