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Kazeer [188]
4 years ago
13

Which sentence best describes the relationship between chlorophyll and the chloroplast?

Chemistry
1 answer:
Viktor [21]4 years ago
3 0

Answer:

chlorophyll is a chemical found in a chloroplast

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Consider this equation: 2.524 g (5.1 × 106 g) ÷ (6.85 × 103 g) = ? How many significant figures should the result have?
weqwewe [10]

Answer:

7

Explanation:

2.524g(5.1)(106)g

(6.85)(103)g

=

1364.4744g2

705.55g

=

1364.4744g

705.55

=

1364.4744g

705.55

=1.933916g

6 0
4 years ago
Potato plants with a Jellyfish gene will glow when they need to be watered.
maksim [4K]

This statement is true, potato plants with jellyfish genes do in fact glow when they need to be watered!

May i have brainliest? I need 1 more!

5 0
3 years ago
Read 2 more answers
What is the speed of an electron that has a de Broglie wavelength of 100. nm?
Advocard [28]

<u>Answer:</u> The speed of the electron is 7.24\times 10^3m/s

<u>Explanation:</u>

To calculate the speed of electron for given wavelength, we use the equation given by De-Broglie's, which is:

\lambda=\frac{h}{mv}

where,

\lambda = De-Broglie's wavelength = 100nm=100\times 10^{-9}m

h = Planck's constant = 6.6\times 10^{-34}Js

m = mass of the electron = 9.11\times 10^{-31}kg

v = speed of the electron = ?

Putting values in above equation, we get:

100\times 10^{-9}m=\frac{6.6\times 10^{-34}Js}{9.11\times 10^{-31}kg\times v}\\\\v=\frac{6.6\times 10^{-34}Js}{9.11\times 10^{-31}kg\times 100\times 10^{-9}m}=7.24\times 10^3m/s

Hence, the speed of the electron is 7.24\times 10^3m/s

4 0
3 years ago
What's the structure of Cl2O? Is it polar or non-polar?
lisabon 2012 [21]
Answer: C) Bent or angular, polar
Explanation:
The central atom oxygen has two lone pairs and two bond pairs in . The number of electron pairs are 4, that means the hybridization will be and the electronic geometry of the molecule will be tetrahedral. But as there are two lone pair of atoms around the central oxygen atom, repulsion between lone and bond pair of electrons is more and hence the molecular geometry will be bent shape.
The compound is polar as the net dipole moment of oxygen - fluoride bonds do not cancel each other out.

3 0
3 years ago
Water (2150 gg ) is heated until it just begins to boil. If the water absorbs 5.91×105 JJ of heat in the process, what was the i
Serjik [45]

Answer:

Initial temperature of water was 34,3°C

Explanation:

The heat absorbed in the process (Q) can be written as:

Q = mcΔT

Where the heat is 5,91x10⁵J, m is mass of water (2150g), c is specific heat of water (4,184J/g°C). And ΔT is change in temperature (100°C - x). Replacing:

5,91x10⁵J = 2150g×4,184J/g°C×(100°C - x)

5,91x10⁵J = 899560J - 8995,6J/°Cx

-3,0856x10⁵J = - 8995,6J/°Cx

34,3°C = x

Thus, <em>initial temperature of water was 34,3°C</em>

I hope it helps!

3 0
3 years ago
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