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ivanzaharov [21]

2 years ago

5

true or false: an object's color is dependent on the chemical composition of its matter, which determines the wavelegnth that is

reflected

1 answer:

ratelena [41]2 years ago

6 0

Answer:

true

Explanation:

The physical and chemical composition of matter determines which wavelength (or color) is reflected.

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"Bromos" Means stench in greek, this is stinky element.

Molodets [167]

What is your question exactly?? lol sorry

7 0

3 years ago

Which option correctly describes the influence of electronegativity difference on bond character?

Bezzdna [24]

Electronegativity is a property of a certain element to attract an electron from other elements towards itself during a reaction. The greater the difference of the electronegativities of two elements in a compound, the stronger is their binding force. The strongest bond is the ionic bond, then following by covalent bonds.

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3 years ago

How does organic matter help soil?

sergeinik [125]

Answer:

C

Explanation:

the rain does help the soli it can make bacteria

7 0

2 years ago

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How much heat is required to change 100 g of ice (H2O) at 253 K to vapor (steam) at 393 K?

soldier1979 [14.2K]

<u>Answer:</u> The heat required will be 58.604 kJ.

<u>Explanation: </u>

To calculate the amount of heat required, we use the formula:

$Q= m\times c\times \Delta T$

Q= heat gained or absorbed = ? J

m = mass of the substance = 100 g

c = heat capacity of water = 4.186 J/g ° C

Putting values in above equation, we get:

$\Delta T={\text{Change in temperature}}=(393-253)K=140K=140^oC$

$Q=100g\times 4.186J/g^oC\times 140^oC$

Q = 58604 Joules = 58.604 kJ (Conversion factor: 1 kJ = 1000J)

Thus, heat released by 100 grams of ice is 58.604kJ.

3 0

4 years ago

Determine the mass number of an element that contains 26 protons, 22 electrons, and 30 neurons

Cloud [144]

Answer:

56 is the mass

Explanation:

You would add 26 and 30(the protons and neutrons). I didn't add the electrons because they are so small their mass is negligible in this situation.

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4 years ago

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