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3 years ago

Which has higher specific heat capacity, iron or brick (Concrete

Chemistry

2 answers:

Dominik [7]3 years ago

8 0

Answer:

Brick

Explanation:

g100num [7]3 years ago

8 0

Answer:

Explanation:

Brick has a heat capacity of 840 J/kg degree Centigrade.

That means that if you have 1 kg of brick, you will need to add 840 joules of heat to get it to go up 1 degree C.

The heat capacity of iron is 450 J/kg (degree centigrade).

Brick has the higher heat capacity. Undefined in all of this is a joule. It is a work unit. The problem is that to define a joule accurately, you need to bring in a lot of other units. Content yourself by understanding that both the iron and the brick are measured in the same units -- Joules.

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The table lists properties of a few known elements, but the states of matter and melting points are missing. Look up the element

kolbaska11 [484]

The properties of the given elements are as follows:

Potassium, K;

State of matter: Solid
Melting point: 63.5 °C
Conductivity: Good
Solubility (H2O): reacts rapidly with water

Iodine, I;

State of matter: solid
Melting point: 113.5 °C
Conductivity: very poor
Solubility (H2O): negligible

Gold, Au;

State of matter: solid
Melting point: 1064 °C
Conductivity: excellent
Solubility (H2O): none

Germanium, Ge;

State of matter: solid
Melting point: 938.2 °C
Conductivity: fair
Solubility (H2O): none

Barium, Ba;

State of matter: solid
Melting point: 727 °C
Conductivity: good
Solubility (H2O): reacts strongly

Argon, Ar;

State of matter: gas
Melting point: -189.4 °C
Conductivity: none
Solubility (H2O): negligible

Chlorine Cl;

State of matter: gas
Melting point: -101.5 °C
Conductivity: poor
Solubility (H2O): slight

Rubidium, Rb;

State of matter: solid
Melting point: 39.48 °C
Conductivity: good
Solubility (H2O): reacts violently

Silver, Ag;

State of matter: solid
Melting point: 961.8 °C
Conductivity: excellent
Solubility (H2O): none

Calcium, Ca;

State of matter: solid
Melting point: 842 °C
Conductivity: good
Solubility (H2O): reacts

Silicon, Si;

State of matter: solid
Melting point: 1,410 °C
Conductivity: intermediate
Solubility (H2O): none

Xenon, Xe;

State of matter: gas
Melting point: -111.8 °C
Conductivity: very poor
Solubility (H2O): none

<h3>What are elements?</h3>

Elements are pure substances which are composed of similar atoms.

Elements are defined as substances which cannot be split into simpler substances by an ordinary chemical process.

Elements have different physical and chemical properties and can be classified into:

metals
semi-metals
non-metals

In conclusion, the physical and chemical properties of the elements vary from metals to non-metals.

Learn more about elements at: brainly.com/question/6258301

#SPJ1

7 0

1 year ago

WORTH 53 POINTS AND BRAINLIEST!!!

Natali5045456 [20]

The answer would be D carbon dioxide

8 0

3 years ago

Read 2 more answers

In the following net ionic equation, identify each reactant as either a Bronsted-Lowry acid or a Bronsted-Lowry base. HCN(aq) H2

vfiekz [6]

Answer:

Explanation:

The definition of acids and bases by Arrhenius Theory was modified and extended by Bronsted-Lowry.

Bronsted-Lowry defined acid as a molecule or ion which donates a proton while a base is a molecule or ions that accepts the proton. This definition can be extended to include acid -base titrations in non-aqueous solutions.

In this theory, the reaction of an acid with a base constitutes a transfer of a proton from the acid to the base.

From the given information:

$\mathsf{HCN _{(aq)} + H_2O_{(l)} \to CN^{-}_{(aq)} + H_3O_{(aq)}}$

From above:

We will see that HCN releases an H⁺ ion, thus it is a Bronsted-Lowry acid

$H_2O$ accepts the H⁺ ion ,thus it is a Bronsted-Lowry base.

The formula of the reactant that acts as a proton donor is <u>HCN</u>

The formula of the reactant that acts as a proton acceptor is <u>H2O</u>

8 0

3 years ago

Why can’t you see the stars very well at night like you could 50 years ago

Elenna [48]

Answer:Artificial light from cities has created a permanent "skyglow" at night, obscuring our view of the stars. Here's their map of artificial sky brightness in North America, represented as a ratio of "natural" nighttime sky brightness. In the black areas, the natural night sky is still (mostly) visible.

Explanation:

6 0

3 years ago

Will sodium iodide react with bromine to produce sodium bromide and iodine? Why or why not?

Gre4nikov [31]

Answer:

Explanation:

The higher the period the higher the activity of an element, therefore, since iodine is in period 6 and bromine is in period 5, the described reaction is not possible due to the fact that bromine is less active

4 0

2 years ago