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Airida [17]
3 years ago
8

when u walk your dog ur using energy from the sunlight to power this activity explain (ANSWER PLESSSSSSSSSSSSSSZZZ)

Chemistry
1 answer:
wariber [46]3 years ago
4 0

Answer:

When you walk your dog, you are using energy from the sunlight to power the activity. Explain. The energy you use is transferred from glucose, which got it directly from sunlight.

Explanation:

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Match each element to the number of electrons in its valence shell
blondinia [14]

Answer: Be= 2, C =4,  Li = 1 and  B=3

Explanation:

The valence shell can be define as the outermost shell of an atom that contains the valence electrons.

Beryllium (Be), electronic configuration; 1s2 2s2, = 2 electrons in its valence shell.

Carbon (C), electronic configuration; 1s2 2s2 2p2, = 4 electrons in its valence shell.

Lithium (Li), electronic configuration; 1s2 2s1 = 1 electron in its valence shell.

Boron (B) , electronic configuration; 1s2 2s2 2p1 = 3 electron in its valence shell.

6 0
3 years ago
Kira dissolved different solutes in 100 ml of water. She recorded the amount of each solute that would dissolve at different tem
Radda [10]
This information confirms that temperature and solubility are related. The higher the temperature is, the more soluble.
8 0
2 years ago
Why didn't mendeleev use atomic number to arrange the elements?
Pepsi [2]

The primary reason for this was that Mendeleev didn't know that atomic numbers actually existed. Atomic numbers were only discovered a period after Mendeleev's time. The use of X-rays made it possible to find the atomic number, and those had not been discovered yet. <span>
<span>The periodic table was then arranged in 1913 by Henry Moseley in an arrangement according to atomic number.</span></span>

8 0
3 years ago
The molecules of a substance must have what characteristics in order to be flexible
Goryan [66]
Answer:
            <span>The molecules of a substance which must have the <u>a</u></span><u>bility to move past one another</u> are said to be flexible.

Explanation:
                   Those substances are said to be flexible which can be bent without breaking. There are many substances which are hard in nature but still can be bent. The hardness of such materials is due to strong interactions between the molecules and the flexibility comes due to their amorphous backbone. Therefore, greater the crystalline level of macromolecules lesser is the flexibility and greater the amorphous character greater is the flexibility and vice versa. Also, the flexibility of polymers is increased by adding plastisizers in it. Plastisizers make the hard polymers flexible by breaking the crosslinkers and enabling the macromolecules to move past one another.

6 0
3 years ago
What do hydroligists primarly study
serious [3.7K]

Answer:

The study of movement, distribution and quality of water.

Explanation:

They measure the properties of bodied of water, such as the volume of and stream flow.

4 0
3 years ago
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