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Ulleksa [173]
4 years ago
10

Which rays has the highest frequency?

Chemistry
1 answer:
exis [7]4 years ago
8 0

Answer:

x-ray is the correct answer.

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I will give you 100 points and mark you as brainilest if you answer the whole thing correctly.​
Nookie1986 [14]

Answer:

1.)Al_{2} O_{3}

2.) Li_{3} N\\

3.) 2HCl

4.) MgO

5.) Mg and O_{2}

6.) H_{2} and O_{2}

7.)Na and Br_{2}

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Explanation:

6 0
3 years ago
A jet is goes from 180km/s to 139km/s in 22 seconds. What is it's acceleration?
jeyben [28]
180 km/s V= 25



explanation: i had the same assignment
5 0
3 years ago
A chemist prepares a solution by adding 258 mg of K2Cr2O7 (MW = 294.19 g/mol ) to a volumetric flask, and then adding water unti
Maksim231197 [3]

Answer: Molarity of the prepared solution is 1.75\times 10^{-3}mole/L

Explanation:

Molarity is defined as the number of moles of solute dissolved per liter of the solution.

Molarity=\frac{n\times 1000}{V_s}

where,

n= moles of solute

V_s = volume of solution in ml = 500 ml

moles of solute =\frac{\text {given mass}}{\text {molar mass}}=\frac{0.258g}{294.19g/mol}=8.77\times 10^{-4}mol

Now put all the given values in the formula of molarity, we get

Molarity=\frac{8.77\times 10^{-4}moles\times 1000}{500ml}=1.75\times 10^{-3}mole/L

Thus molarity of the prepared solution is 1.75\times 10^{-3}mole/L

3 0
3 years ago
A lithium atom contains 3 protons,4neutrons and 3 electrons.What would be formed if a proton was added to this atom.
slega [8]

Answer:

Adding one proton to an atom of lithium with 3 protons, 4 neutrons and 3 electrons would form a _beryllium ion_. The new atom have 4 protons and 4 neutrons since Be has a mass number of 9 then it has to form an ion. Hope this helps! PLEASE GIVE ME BRAINLIEST!!!! =)

8 0
3 years ago
100 PONTS AND BRAINLIEST <br><br> What is the maximum number of formula units of NaCl in one mole?"
natulia [17]

Answer:

The meaning and usefulness of the mole Page 2 2 • One mole of NaCl contains 6.022 x 1023 NaCl formula units. Use the mole quantity to count formulas by weighing them.

5 0
3 years ago
Read 2 more answers
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