All categories

4 years ago

In an atomic model that includes a nucleus, negative charge is

2 answers:

Ber [7]4 years ago

6 0

In an atomic model that includes a nucleus, the negative charge correlates to the electron and is located outside of the positively charged nucleus. It is found in a given region, where there is a probability of electrons to be found called the electron cloud.

a_sh-v [17]4 years ago

4 0

Explanation:

Every atom consists of three sub-atomic particles which are protons, neutrons and electrons.

Protons have a positive charge, neutrons have no charge and electrons have a negative charge.

Inside the nucleus of an atom, there will be only protons and neutrons. Whereas electrons revolve around the nucleus of an atom.

Therefore, we can conclude that in an atomic model that includes a nucleus, negative charge is concentrated outside the nucleus of an atom.

You might be interested in

Số hợp chất tố đa của nguyên tố này với nguyên tố khác theo hóa trị của nó

SVETLANKA909090 [29]

Answer:

Carbon

Explanation:

Carbon

5 0

3 years ago

CORO<br> Name three ways that scientists can ensure their results<br> are reliable

Leya [2.2K]

Answer:

Reliability. When a scientist repeats an experiment with a different group of people or a different batch of the same chemicals and gets very similar results then those results are said to be reliable. Reliability is measured by a percentage – if you get exactly the same results every time then they are 100% reliable.

Explanation:

Sorry, I only got one way.

5 0

3 years ago

What is the mass of 4.5 x 10^22 molecules of hydrogen peroxide (H2O2)? Show your work in the space below.

valentinak56 [21]

Given :

Number of molecules of hydrogen peroxide, N = 4.5 × 10²².

To Find :

The mass of given molecules of hydrogen peroxide.

Solution :

We know, 1 mole of every compound contains Nₐ = 6.022 × 10²³ molecules.

So, number of moles of hydrogen peroxide is :

$n = \dfrac{N}{N_a}\\\\n = \dfrac{4.5\times 10^{22}}{6.022\times 10^{23}}\\\\n = 0.0747 \ moles$

Now, mass of hydrogen peroxide is given as :

m = n × M.M

m = 0.0747 × 34 grams

m = 2.54 grams

Hence, this is the required solution.

6 0

3 years ago

A 57.9 g sample of glass is cooled by 27.0°C. How much heat does it release?

liberstina [14]

Explanation:

A 57.9 g sample of glass is cooled by 2.70'C how much heat does it release

1560

3 0

3 years ago

CHEM AGAIN

slavikrds [6]

Answer:-

182 Kg

Explanation:-

Molar mass of CO = 12 x 1 + 16 x 1 = 28 grams

Molar mass of CH3OH = 12 x 1 + 1 x 3 + 16 x 1 + 1 x 1

= 32 grams

The balanced equation for this reaction is

CO(g)+H2(g)—> CH3OH(g)

From the equation we see

1 CH3OH is produced from 1 CO

32 grams of CH3OH is produced from 28 grams of CO.

208 Kg of CH3OH is produced from (28 gram x 208 Kg) / (32 gram)

= 182 Kg of CO

4 0

3 years ago