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3 years ago

Can someone help me please? (attached pic)

Chemistry

1 answer:

LenaWriter [7]3 years ago

6 0

The answer is D, do you want me to show you how?

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A sample of a solid nonmetal is compared to a sample of a solid metal. Both samples have the same volume. What is the

EleoNora [17]

Answer:

STRUCTURE:

Metals have a crystalline structure, whereas non-metals possess amorphic structure.

At room temperature, metals are usually solid, except mercury and gallium which are in the liquid state. Conversely, non-metals can be found in solid or gaseous form, except Bromine which is the only non-metal that is present in liquid form.

Density is the ratio of mass to volume; metals have a higher density as compared to non-metals.

Metals look smooth and shiny, while non-metals usually appear dull.

When it comes to hardness, metals are generally hard substance, but it varies from substance to substance. Unlike non-metals is soft substance except diamond, which is the hardest substance on earth.

CHEMICAL PROPERTIES:

Metals support conduction of heat and electricity. Conversely, non-metals are insulators, and so they do not support conduction of heat and electricity.
Metals have a very high melting and boiling point. In contrast, non-metals are boiled and melted at a relatively low temperature.
In the outer shell, metals consist of 1 to 3 electrons, whereas non-metals consist of 4 to 8 electrons.

8 0

3 years ago

What was John Dalton's contribution to the development of the atomic theory?

Tpy6a [65]

Answer:

<h3>A. Dalton recognized that tiny atoms combined to form complex structures. </h3>

3 0

3 years ago

How to solve a balanced equation

geniusboy [140]

Explanation:

To balance a chemical equation, there are so many approaches to solve the problem.

A balanced chemical equation is one that obeys the law of conservation of matter.

According to this law "matter is neither created nor destroyed by atoms are just rearranged in chemical reaction".

This implies implies that equal number of atoms must be on both sides of the equation.

There are two main approaches to balancing chemical equation;

Inspection
mathematical equation

We can inspect the equation and affix the proper coefficients to combining species.

Mathematically, we establish simple solvable algebraic equations to find the number of respective coefficients that will balance the equation:

For example:

H₂ + O₂ → H₂O

mathematically;

aH₂ + bO₂ → cH₂O

conserving:

H : 2a = 2c

O: 2b = c

let a = 1

c = 1

b = $\frac{1}{2}$

multiply by 2 to give;

a = 2, b = 1 , c= 2

2H₂ + O₂ → 2H₂O

learn more:

Balanced equation brainly.com/question/9325293

#learnwithBrainly

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3 years ago

Please Help! Thank You

Ivanshal [37]

Explanation:

the answer is true because I had this question and got it right

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3 years ago

BRAINLIEST FOR CORRECT ANSWER

Nat2105 [25]

Answer:

jjjjjjjjjjjjjjjjjjj

Explanation:

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3 years ago

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