All categories

2 years ago

Which two chemists organized elements based on properties such as how the elements react or whether they are solid or liquid

Physics

2 answers:

Lelechka [254]2 years ago

5 0

Doberiner and lavoiser

Basile [38]2 years ago

3 0

Answer:

Antoine Lavoisier and Johann Döbereiner

Explanation:

One of the very first attempt to classify the elements was made in 1789 by Antoine Lavoisier who grouped all the elements based on their properties into whether they are gases, metals or non metals and earths metals.

Johann Döbereiner in 1829, recognised triads of elements with similar chemical properties and showed that the properties of the element that is in the middle of other two elements can be predicted from the properties of the other two.

You might be interested in

Which statement describes the direction of spontaneous heat flow

NISA [10]

The direction of spontaneous heat flow in a system is described by the second law of thermodynamics, which describes that the direction of spontaneous heat flow is from a region of higher heat energy to a region of lower heat energy.
Multiple statements of this law are available, such as the one presented by Carnot or the one presented by Clausius and Planck.

8 0

3 years ago

Read 2 more answers

Sound is a mechanical wave; therefore, it __________.

avanturin [10]

A mechanical wave such as sound needs a medium to travel through. This is why they say that in space, no one can hear you scream (because space is a vacuum and no medium exists). On the contrary, light can exist in wave or particle form. This is why we have the ability to see beyond the realms of the Earth.

8 0

3 years ago

Read 2 more answers

In one hour Earth receives enough solar energy to meet the energy needs of the world for

erastova [34]

I have read that it is enough energy to power the needs of civilization for an entire year.

3 0

2 years ago

Lighting from the sun travels through space to earths atmosphere.

Lady bird [3.3K]

Yes it does do all that

3 0

2 years ago

Two objects that are not initially in thermal equilibrium are placed in close contact. After a while, the temperature of the cod

Dima020 [189]

Answer:

If the temperature of the colder object rises by the same amount as the temperature of the hotter object drops, then the specific heats of both objects will be equal.

Explanation:

If the temperature of the colder object rises by the same amount as the temperature of the hotter object drops when the two objects of same mass are brought into contact, then their specific heat capacity is equal.

We can prove this by the equation of heat for the two bodies:

According to given condition,

$\Delta T_1=\Delta T_2$

$\frac{Q_1}{m_1.c_1} = \frac{Q_2}{m_2.c_2}$

when there is no heat loss from the system of two bodies then $Q_1=Q_2$

$\frac{1}{m.c_1} =\frac{1}{m.c_2}$

$\Rightarrow c_1=c_2$

Thermal conductivity is ultimately affects the rate of heat transfer, however the bodies will attain their final temperature based upon their mass and their specific heat capacities.

The temperature of the colder object will rise twice as much as the temperature of the hotter object only in two cases:

when the specific heat of the colder object is half the specific heat of the hotter object while mass is equal for both.

the mass of colder object is half the mass of the hotter object while their specific heat is same.

3 0

2 years ago