3 years ago

What is a covalent compound? physical science?

Chemistry

1 answer:

umka21 [38]3 years ago

4 0

Covalent compounds are formed when non metals bond together.

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Help me with 23 fast

alina1380 [7]

Answer:

a salt

Explanation:

compounds are made of molecules but we need to mention the type of compound formed.

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3 years ago

Read 2 more answers

Hydrogen chloride (HCl) is added to solid sodium hydroxide (NaOH).

SashulF [63]

Answer:

NaOH and HCl

Explanation:

The reaction of sodium hydroxide, NaOH, with hydrochloric acid, HCl, produces NaCl and water.

5 0

2 years ago

Calculate the energy of one photon of yellow light that has a wavelength of 5.89x10^-7m.

Viktor [21]

Answer:

E = energy = ? ,

λ = Wavelength = 5.89 × 10^-7 m —> = 589 ×10 ^-9 m ,

h =Planck constant = 6.63 × 10^-34 J.s ,

f = frequency of photo/ electromagnetic radiation = c/λ ,

c = Speed of light in a vacuum = 3 × 10^8 m/s

___o___o____

$E = hf \\ \\ E = h \frac{c}{λ} \\ \\ E = 6.63 \times {10}^{ - 34} \frac{3 \times {10}^{8} }{5.89 \times {10}^{ - 7} } \\ \\E = \frac{6.63 \times {10}^{ - 34} \times 3 \times {10}^{8} }{5.89 \times {10}^{ - 7} } \\ \\ E = \frac{663 \times {10}^{ - 36} \times 3 \times {10}^{8} }{589 \times {10}^{ - 9} } \\ \\ E = \frac{1989 \times {10}^{ - 28} }{589 \times {10}^{ - 9} } \\ \\ E = 3.37691 \times {10}^{ - 19} J$

I hope I helped you^_^

8 0

2 years ago

Which of the following does a bacteria cell NOT have in common with a plant cell?

Keith_Richards [23]

Answer:

A. Cytoplasm

Explanation:

I majored in Chemistry

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2 years ago

How are energy and mass connected during the formation of an atom?

-BARSIC- [3]

Energy is released and mass is reduced

4 0

3 years ago