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3 years ago

What happens to valence electrons during the formation of chemical bonds

Chemistry

2 answers:

Ivanshal [37]3 years ago

5 0

Answer:

Ionic bonding

Explanation:

Ionic bonding is the complete transfer ofvalence electron(s) between atoms. It is a type of chemical bondthat generates two oppositely chargedions. In ionic bonds, the metal loseselectrons to become a positively charged cation, whereas the nonmetal accepts those electrons to become a negatively charged anion.

Hope This Helps And Have A Great Day !! :)

AveGali [126]3 years ago

4 0

Answer:

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How scientific notation makes it easier to work with very large or very small numbers.

Elan Coil [88]

Say that you have 100³

instead of writing and solving 100x100x100 three times to solve it, you can just write 100³

the exponents in scientific notation make the whole process easier.

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3 years ago

determine the final temperature of a gold nugget parentheses Mass equals 376 G parentheses that starts at 398k and loses 4.85 KJ

maw [93]

Answer:

297.23 K

Explanation:

Given that:

the mass of the gold nugget (m) = 376 g

the initial temperature $T_1$ = 398 K

amount of heat lost Q = -4.85 kJ = -4.85 × 10³

specific heat capacity (c) = 0.128 J/g° C

Using the formula for calculating the Heat energy

$Q = mc\Delta T \\ \\ Q = m\times c\times (T_2-T_1)$

$-4.85 \times 10^3 = 376 \times 0.128 \times (T_2 - 398) \\ \\ -4.85\times 10^3 = 48.128(T_2 - 398) \\ \\ \dfrac{-4.85\times 10^3}{48.128}= (T_2 - 398) \\ \\-100.77 = T_2 -398\\\\T_2 = -398 +100.77\\ \\ \mathbf{ T_2 = 297.23K}$

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3 years ago

Cuál es la densidad (g/ml) de un líquido de batería de automóvil, si tiene un volumen de 0,125 L y una masa de 155g??

leonid [27]

Answer:

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3 years ago

g How many moles of NaOH are present in a sample if it is titrated to its equivalence point with 44.02 mL of 0.0885 M H2SO4? 2Na

Lisa [10]

Answer:

$n_{base}=3.90x10^{-3}molNaOH$

Explanation:

Hello!

In this case, since the sulfuric acid and sodium hydroxide react in a 1:2 mole ratio, given the reaction, we realize they have the following mole ratio at the equivalence point:

$2*n_{acid}=n_{base}$

Which in terms of concentrations and volumes is:

$2*M_{acid}V_{acid}=n_{base}$

Thus, we can plug in the volume and concentration of acid to find the moles of base:

$n_{base}=0.04402L*0.0885\frac{mol}{L} \\\\n_{base}=3.90x10^{-3}molNaOH$

Best regards!

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3 years ago

Why atoms in our body don’t <br><br>eject electrons?

Zolol [24]

Answer:

When there are too many protons, some of the outer protons are loosely bound and more free to react with the electron. But most atoms do not have too many protons, so there is nothing for the electron to interact with. As a result, each electron in a stable atom remains in its spread-out wavefunction shape.

In an atom, there is a nucleus made up of neutral charged, neutrons, and positively charged protons. The reason why electrons which are negatively charged, don't fly off is due to its stronger attraction to the protons. ... This, however, still allows the electrons to move around the nucleus of an atom.

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3 years ago