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faltersainse [42]
4 years ago
9

Easy questions ha chemistry

Chemistry
2 answers:
zheka24 [161]4 years ago
8 0

Answer:

B

A

D

Explanation:

joja [24]4 years ago
3 0

Answer:

B

A

D

Explanation:

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Element A has an electronegativity of 2.20. Element B has an electronegativity of 3.44. The bond of molecule AB is then best des
sashaice [31]

Answer: The bond of molecule AB is then best described as a covalent bond

Explanation: The bond molecule AB is covalent because the difference in their electronegativity is not very big

4 0
3 years ago
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What tpye of stress results when two tectonic plates diverge
PtichkaEL [24]
Tensional Stress<span>. Tensional </span>stress<span>, sometimes known as extensional </span>stress<span>, stretches and pulls rocks apart. This </span>type of stress<span> occurs along </span>divergent plate boundaries<span>, where </span>two tectonic plates<span> are tearing away from one another.</span>
4 0
3 years ago
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How many grams of sodium hydroxide are needed to make 500mLs of a 0.125M NaOH solution?
dybincka [34]
need 0.500 x 0.125 = 0.0625 moles of NaOH. The molecular weight is 23+16+1 = 40, so 0.0625 x 40 = 2.5 grams will do the trick.
7 0
4 years ago
A runner wants to run 10.4 km k m . She knows that her running pace is 8.0 mi/h m i / h .
mars1129 [50]

Answer:

Approximately 49 minutes.

Explanation:

1 mile = 1.6 km

So 8.0 x 1.6 km

Minutes required: \frac{10.4 times 60 }{8.0 times 1.6}= 48.75 minutes

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4 0
3 years ago
Will mark brainliest
OverLord2011 [107]

Answer:

4. Principal and Azimuthal (subsidiary) quantum number

5.Principal, Azimuthal (subsidiary), and magnetic quantum number

6. 10 electrons

7. 32 electrons

8. 36 electrons

Explanation:

4. Principal and Azimuthal (subsidiary) quantum number because in 4d, 4 represent principal quantum number and d- represents azimuthal quantum number (having l- value as 3)

5.Principal, Azimuthal (subsidiary), and magnetic quantum number are the first three because 2 stands for principal, s-for azimuthal (l=0) and magnetic quantum number for s- orbital= 0

6. 10 electrons, because for sublevel with l= 3, is a d-sub-level, and d- can take 10-electrons

7. 32 electrons, using the relationship 2×n^2 for the maximum number of electrons in a shell,

,n= 4 , hence 2×4^2= 32

8. 36 electrons, because n=4 and n= 3 can have the maximum configuration of [Ar]4s^2 3d^10 4p^6

This will sum up to 36- electrons, since Argon has 18 -electrons.

18+2+10+6=36 electrons

8 0
4 years ago
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