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2 years ago

What is the answer pllleeaasseeeee?????

Chemistry

1 answer:

kenny6666 [7]2 years ago

3 0

I will try my best to sovle this question...

Im Pretty sure it has to be A. it needs to balance it would not stand in place if not balanced.

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5. Using the terms: metal and nonmetal, describe what types of atoms make up each type of<br> bond.

Elis [28]

Answer:

See the answer below, please.

Explanation:

The bonds formed between metals and nonmetals are called ionics. These occur between atoms with electronegativity difference. Example: NaCl (Sodium Chloride)

Instead, covalent bonds are formed between two nonmetals (one or more electron pairs are shared). Example: H202 (hydrogen peroxide).

In the case of metal formed bonds, they are called metallic.

6 0

2 years ago

Hello I’m having trouble with this question May you help me? Thank you!

Ostrovityanka [42]

Answer:

Explanation:

Here, we want to state the similarity between the model by Rutherford and the model by Thompson

The similarity in both models can be seen in terms of the affirmation of the presence of positively and neatively charged units in the atom

4 0

5 months ago

The average kinetic energy of particles of matter id called?

AlexFokin [52]

Temperature is a measure of the average kinetic energy of the particles in a substance. It is the kinetic energy of a typical particle. Temperature is a measure of the average kinetic energy of the particles. in a substance.

6 0

2 years ago

Read 2 more answers

What is the composition, in atom percent, of an alloy that consists of a) 5.5 wt% Pb and b) 94.5 wt% of Sn? Assume that the atom

Anastaziya [24]

Answer : The percent composition of Pb and Sn in atom is, 3.21 % and 96.8 % respectively.

Explanation :

First we have to calculate the number of atoms in 5.5 wt% Pb and 94.5 wt% of Sn.

As, 207.2 g of lead contains $6.022\times 10^{23}$ atoms

So, 5.5 g of lead contains $\frac{5.5}{207.2}\times 6.022\times 10^{23}=1.59\times 10^{22}$ atoms

and,

As, 118.71 g of lead contains $6.022\times 10^{23}$ atoms

So, 94.5 g of lead contains $\frac{94.5}{118.71}\times 6.022\times 10^{23}=4.79\times 10^{23}$ atoms

Now we have to calculate the percent composition of Pb and Sn in atom.

$\% \text{Composition of Pb}=\frac{\text{Atoms of Pb}}{\text{Atoms of Pb}+\text{Atoms of Sn}}\times 100$

$\% \text{Composition of Pb}=\frac{1.59\times 10^{22}}{(1.59\times 10^{22})+(4.79\times 10^{23})}\times 100=3.21\%$

and,

$\% \text{Composition of Sn}=\frac{\text{Atoms of Sn}}{\text{Atoms of Pb}+\text{Atoms of Sn}}\times 100$

$\% \text{Composition of Sn}=\frac{4.79\times 10^{23}}{(1.59\times 10^{22})+(4.79\times 10^{23})}\times 100=96.8\%$

Thus, the percent composition of Pb and Sn in atom is, 3.21 % and 96.8 % respectively.

6 0

2 years ago

what is the strongest type of intermolecular forces present between a stearic acid molecule and a water molecule?

gtnhenbr [62]

Hydrogen bonding and dipole-dipole forces.

4 0

2 years ago