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PtichkaEL [24]
2 years ago
7

100 points bc why not :P Which statement best describes heating by radiation?

Chemistry
1 answer:
patriot [66]2 years ago
7 0

Answer:

Sunlight travels through space without the aid of fluids or solids.

Explanation:

By definition, radiation is transfer of heat without a medium.

All other options are have convection involved in them, not radiation.

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Which statement best describes the effect of low ionization energies and low electronegativities on metallic bonding?
kramer
The statement that best describes the effect of low ionization energies and low electronegativities on metallic bonding is the first one - the valence electrons are easily delocalized. 
Due to these low energies and negativities, valence electrons can be moved around quite easily and their positions may be altered quite drastically. 
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2 years ago
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amount of energy released, which is represented by the ccc Energy and Matter the surface of the sun is at a temperature of about
olasank [31]

Answer:

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Explanation:

3 0
3 years ago
What is the molarity of HCl if 34.81 mL of a solution of HCl contain 0.3297 g of HCl?
Temka [501]

Answer:

0.2598 M

Explanation:

Molarity is mol/L, so we have to convert the grams to moles and the mL to L. To convert between grams and moles you need the molar mass of the compound, which is 36.46g/mol.

0.3297gHCl*\frac{1molHCl}{36.46gHCL} = 0.00904279 mol HCl

34.81 mLHCl * \frac{1L}{1000L} = 0.03481 L HCl

\frac{0.00904279molHCl}{0.03481 L HCl} = 0.25977554 mol/L

Round to the lowest number of significant figures = 0.2598 M

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3 years ago
HELP ME<br>dm me on insta<br>temi.awolola<br>I need a lot of help ​
Georgia [21]

Protons:

- Have a mass

- Positively charged

- Found inside the nucleus of an atom

Electrons:

- Have a mass. (9.10938188×10−31 kilograms), though this can sometimes be considered negligible due to how small that actually is. Barely factored into atomic mass

- Negatively charged

- Found outside the nucleus in the electron shell

Neutrons:

- Have a mass

- Neutral (no charge)

- Found inside the nucleus of an atom

Atom A:

- 1 proton

- 0 Neutrons

- 1 electron

- Atomic mass of 1

- Atomic number of 1

Atom B:

- 8 Protons

- 10 Neutrons

- 8 electrons

- Atomic mass of 18

- Atomic number of 8

Atomic mass includes the number of protons and neutrons in the nucleus. Atomic number is the number of protons, as this is what defines what type of element the atom is.

6 0
2 years ago
What do the subscripts mean in a molecular formula ?​
horsena [70]

Answer:

A molecular formula tells us what atoms and how many of each type of atom are present in a molecule.

Explanation:

If only one atom of a specific type is present, no subscript is used.

For atoms that have two or more present, a subscript is written after the symbol for that atom.

Molecular formulas do not indicate how the atoms are arranged in the molecule.

- Hope this helps! -blazetoxic123

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