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vodka [1.7K]
3 years ago
12

This is for science and it’s for the plant kingdom

Chemistry
1 answer:
Elenna [48]3 years ago
7 0

Answer:

Explanation:

1. Flower

2. Leaves

3. Stem

4. Root

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What is 8S8 <br><br> In need for a quick answer
kirza4 [7]

Answer:

8x8 Inc. is a provider of Voice over IP products. 8x8 products include cloud-based voice, contact center, video, mobile and unified communications for businesses.

Explanation:

7 0
3 years ago
which of the following chemical structures can form hydrogen bonds with water? Methane (CH4), molecular oxygen (O2), hydrogen su
klio [65]

Answer:

Molecular oxygen and Hydrogen fluoride.

Explanation:

Definition:

Hydrogen bonding:

It is a type of dipole-dipole attraction between the hydrogen atom and more electronegative atoms.

In hydrogen bonding mostly the highly electronegative atoms are fluorine, nitrogen and oxygen.

Explanation:

In given compound such as methane CH₄ the electronegativity of carbon is 2.55 while that of hydrogen is 2.2 so there is smaller electronegativity difference that's why it can not form hydrogen bond.

In case of molecular oxygen the electronegativite atom oxygen is present. It can form hydrogen bonds with water. its electronegativity is 3.44.

In case of hydrogen fluoride the electronegativity atom fluorine is present. It will form hydrogen bonds with water. Its electronegativity is 3.98. So it is more likely to take part in hydrogen bonding.

8 0
3 years ago
Which of these is an example of an abiotic factor?
dolphi86 [110]

What are the choices? I'll answer once you tell me those

8 0
3 years ago
Riya rides his bike 63 miles in 270 minutes. What is his average speed in miles per hour? Be sure to include the equation for sp
bekas [8.4K]

Answer:

14mph

Explanation:

270 minutes = 4 hr and 1/2hr

63 miles = 63/4.5 = 14 miles per hour

Making the speed 14mph

Equation = h = 4.5     

(4h x 4h ) + (1 x 311/100) = 60

= 4h x 4h +( 1 x 311/100) =60

= 16h^2 + (1 x 311/100) =60

= 256h + (1 x 311/100) =60

= 256h + 14 = 60

= 270h  =  60

= h = 4.5    

8 0
3 years ago
The half-life of carbon-14 is 5,730 years. Dating organic material by looking for C-14 can't be accurately done after 50,000 yea
ki77a [65]

Answer:

0.010g of C-14 would be later after 50,000 years

Explanation:

The kinetics of radioactive decay follows the equation:

Ln (N / N₀) = -kt

<em>Where N could be taken as mass after time t, </em>

<em>N₀ initial mass = 4.30g;</em>

k is rate constant = ln 2 / t(1/2)

<em>= ln 2 / 5730years = 1.2097x10⁻⁴ years ⁻¹</em>

<em />

Replacing:

Ln (N / 4.30g) = -1.2097x10⁻⁴ years ⁻¹ * 50000 years

N / 4.30 = 2.36x10⁻³

N =

<h3>0.010g of C-14 would be later after 50,000 years</h3>
7 0
3 years ago
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