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3 years ago

In which of these statements are protons, electrons, and neutrons correctly compared?

Chemistry

2 answers:

ZanzabumX [31]3 years ago

8 0

Answer:

Quarks are present in protons and neutrons but not in electrons.

Explanation:

In Particle Physics, quarks are combined to form stable particles called neutrons and protons inside the atomic nuclei.

algol133 years ago

5 0

The statement that correctly compares protons, electrons, and neutrons is, "Quarks are present in protons and neutrons but not in electrons". Quarks are tiny particles which compose the neutrons and protons. These quarks in protons and neutrons are linked together by gluons.

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Express the following number in scientific notation: 0.000000675.

tekilochka [14]

There are 7 digits from decimal to 1st digit, and it's coming from right, so exponent will be in negative 7

In short, Your Answer would be: Option C) 6.75 × 10-7

Hope this helps!

6 0

3 years ago

Equation balancing

meriva

Answer:

For a: The balanced equation is $2S(s)+3O_2(g)\rightarrow 2SO_3(g)$

For c: The balanced equation is $2NaOH(s)+H_2SO_4(aq)\rightarrow Na_2SO_4(aq)+2H_2O(l)$

Explanation:

A balanced chemical equation is one where all the individual atoms are equal on both sides of the reaction. It follows the law of conservation of mass.

For (a):

The given unbalanced equation follows:

$S(s)+O_2(g)\rightarrow SO_3(g)$

To balance the equation, we must balance the atoms by adding 2 infront of both $S(s)$ and $SO_3$ and 3 in front of $O_2$

For the balanced chemical equation:

$2S(s)+3O_2(g)\rightarrow 2SO_3(g)$

For (b):

The given balanced equation follows:

$2Al(s)+3Cl_2(g)\rightarrow 2AlCl_3(s)$

The given equation is already balanced.

For (c):

The given unbalanced equation follows:

$2NaOH(s)+H_2SO_4(aq)\rightarrow Na_2SO_4(aq)+H_2O(l)$

To balance the equation, we must balance the atoms by adding 2 infront of $H_2O(l)$

For the balanced chemical equation:

$2NaOH(s)+H_2SO_4(aq)\rightarrow Na_2SO_4(aq)+2H_2O(l)$

For (d):

The given balanced equation follows:

$C_3H_8(g)+5O_2(g)\rightarrow 3CO_2(g)+4H_2O(g)$

The given equation is already balanced.

4 0

3 years ago

1. How many Chromium atoms are found in 25.8 milligrams of Chromium?

givi [52]

Answer: 51.9961 g/mol, don't know if it helps :)

Explanation:

7 0

3 years ago

Read 2 more answers

How many sub-energy levels does the 2nd MEL have?

DedPeter [7]

Answer:

n= | Shell | Maximum Number of Electrons

1 | 1st Shell | 2

2 | 2nd Shell | 8

3 | 3rd Shell | 18

4 | 4th Shell | 32

Explanation: cause :)

5 0

3 years ago

How the Atmosphere affects the Biosphere pls help

guapka [62]

Answer:

Explanation:

Air pollutants also affect the biosphere in turn. Ozone and acid deposition suppress plant growth; meanwhile, aerosols and their indirect effects on clouds decrease total photosynthetically active radiation (PAR) while increasing the diffuse fraction.

6 0

3 years ago