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UNO [17]
2 years ago
8

You are given the frequency of a microwave you also know that because microwaves are part of the electromagnetic spectrum, their

speeds, frequencies, and wavelengths are related by the formula c=. The value of c is known constant. First, solve the equation for wavelength, then substitute the known values and solve
V = 3.44 × 10^9Hz
C= 3.00 x 10^8 m/s
Chemistry
1 answer:
m_a_m_a [10]2 years ago
6 0

Answer: EDEDEDDFEDAFSFSDF

Explanation:

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Define the term valence electron and explain how to find the number of valence electrons in family one and family 2.
goblinko [34]
Valence Electron is the outermost electrons, family(Alkali) 1 has 1 valence electrons and family(Alkaline) 2 has 2 valence electrons.

Hope this helps
8 0
3 years ago
Please help I will reward brainly
nordsb [41]
Your answer is yeast, since it is a single celled organism that can be classified into a subkingdom related to sac fungi.
6 0
3 years ago
What is the mass of phosphorus that contains twice the number of atoms found in 14
yulyashka [42]

Answer:

15.5 gm

Explanation:

What is the mass of phosphorus that contains twice the number of atoms found in 14 g of iron?

[Relative atomic mass : P = 31; Fe = 56]

14 gm Fe = 14gm/ 56 gm/mole = 14 mole gm/56gm = 14/56 mole

0.25 moles

2 X 0.25 = 0.5 moles

1 mole P = 31 gm

so

0.5 moles P =31/2 =15.5 gm

3 0
2 years ago
What is the mass in grams of 2.6 moles of angelic acid?
Dennis_Churaev [7]

Answer:

260.34g

Explanation:

First, you need to know what angelic acid is comprised of. It is written as C₅H₈O₂.

In order to solve for the mass of 2.6 moles of angelic acid, you need the mass of 1 mole of angelic acid. This can be found by adding the masses from the periodic table, like shown below:

5 carbon atoms = (5)(12.01g) = 60.05g

8 hydrogen atoms = (8)(1.01) = 8.08g

2 oxygen atoms = (2)(16) = 32g

angelic acid = 60.05 + 8.08 + 32 = 100.13g

Then, set up a basic stoichiometric equation and solve. The units should cancel out.

(\frac{2.6mol}{1} )(\frac{100.13g}{1mol} )=260.34g

5 0
3 years ago
What is the answer to this ?
dybincka [34]
Answer:
D

Explanation:
Because the number of protons is the same as the atomic number, we know what the number of protons has to be 26. The mass number, 55, is the same as the number of protons plus neutrons. Lastly, because there is no charge on this atom, the number of electrons would have to be the same as the number of protons, which is 26.
5 0
1 year ago
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