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3 years ago

Which of the following statements accurately describes the structure of the atom?

Chemistry

1 answer:

Katarina [22]3 years ago

5 0

The answer is b
Protons and neutrons are both in the nucleus
Electrons are outside the nucleus

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The article states that amplitude plays a role in what happens to a sound

Brums [2.3K]

Answer:

Sound waves travel through matter

Explanation:

Higher amplitude sound waves are more likely to be transmitted through matter instead of reflected. Lower amplitude sound waves are more likely to be reflected or absorbed, resulting in a lack of an echo. Sound can travel through air, water, and solids

7 0

3 years ago

Cobalt (Co) has an atomic mass of 59 and an atomic number of 27. Which statement correctly describes an atom of cobalt?

marysya [2.9K]

Answer:

Explanation:

27 us the number of protons when we subtract 27 from 59 it will be 32 because a mass number is the sum of proton and neutron but tell u more on the comment

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3 years ago

The reaction of hydrogen sulfide(g) with oxygen(g) to form water(l) and sulfur dioxide(g) proceeds as follows: 2H2S(g) 3O2(g)2H2

Aleks [24]

Answer: The value of $\Delta H$ is 1118 .

Explanation:

To calculate the number of moles, we use the equation:

$\text{Moles of solute}=\frac{\text{given mass}}{\text{molar mass}}$

$\text{Moles of} H_2S}=\frac{9.82g}{34.1g/mol}=0.288mol$

The balanced chemical reaction is:

$2H_2S(g)+3O_2(g)\rightarrow 2H_2O(l)+2SO_2(g)$

Given :

Energy released when 0.288 mole of $H_2S$ is reacted = 161 kJ

Thus Energy released when 2 moles of $H_2S$ is reacted = $\frac{161}{0.288}\times 2=1118kJ$

Thus the value of $\Delta H$ is 1118.

3 0

3 years ago

what is a characteristic of matter that allows it to change to something new? THE CORRECT ANSWER GETS BRAINLIEST!!!!

kodGreya [7K]

Answer:

a chemical property

Explanation:

8 0

3 years ago

6.<br> What is the acceleration of a 24 kg mass pushed by a 6 N force?<br> I jus need number 6

Setler79 [48]

The acceleration : 0.25 m/s²

<h3>Further explanation</h3>

Given

mass = m = 24 kg

Force = F = 6 N

Required

The acceleration

Solution

Newtons' second law :

Newton's 2nd law explains that the acceleration produced by the resultant force on an object is proportional and in line with the resultant force and inversely proportional to the mass of the object

ΣF = m x a

$\large {\boxed {\bold {a = \frac {\sum F} {m}}}$

Input the value :

6 N = 24 kg x a

a = 6 : 24

a = 0.25 m/s²

3 0

3 years ago

Read 2 more answers