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Reil [10]
4 years ago
14

IDENTIFY THE CHEMICAL REACTIONS( CLICK ALL THAT APPLY)

Chemistry
2 answers:
Bogdan [553]4 years ago
6 0
The answer for this is D
AlladinOne [14]4 years ago
5 0

Answer:

B. single replacement

Explanation:

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Density is an example of a​
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A rock is obviously more dense than a crumpled piece of paper of the same size. A styrofoam cup is less dense than a ceramic cup.


hope this helps if it do mark me as brainlest thank you !!
7 0
3 years ago
If 1.10 g of steam at 100.0 °C condenses into 38.5 g of water, initially at 27.0 °C, in an insulated container, what is the fina
Gwar [14]

Answer:

Temperature = 44.02°C

Explanation:

Insulated container indicates no heat loss to the surroundings.

The specific heat capacity of a substance is a physical property of matter. It is defined as the amount of heat that is to be supplied to a unit mass of the material to produce a unit change in its temperature.

The SI unit of specific heat is joule per kelvin and kilogram, J/(K kg).

Now,

Specific heat for water is 4.1813 Jg⁻¹K⁻¹.

Latent heat of vaporization of water is 2257 Jg⁻¹.

Energy lost by steam in it's process of conversion to water, is the energy acquired by water resulting in an increase in it's temperature.

Q = mS \Delta T

Q= Heat transferred

m= mass of the substance

T= temperature

Also,

Q = mL

L= Latent heat of fusion/ vaporization ( during phase change)

Now applying the above equations to the problem:

m_{w} S_{w} (T-27) = (m_{s} L) + m_{s}S_{w} (100 -T)

38.5 \times 4.1813 \times (T-27) = (1.10 \times 2257) + 1.10 \times 4.1813 \times (100 -T)

Temperature = 44.02°C

8 0
4 years ago
True or false. Compounds are two or more DIFFERENT elements.<br> A. True<br> B. False
astraxan [27]

Answer:

the answer is letter B,FALSE

5 0
3 years ago
What volume of a 1.0 M HCl is required to completely neutralize 25.0 ml of a 1.0 M KOH? 50.0 ml 25.0 ml 75.0 ml 100 ml 1.0 ml
lys-0071 [83]
No need 4 calculatinh
the volume needed is 25.o ml coz it requires the same amt of vol to neutralise koh
5 0
4 years ago
The brown solid that formed is zinc copper oxygen iron
horsena [70]

Answer: Copper

Explanation:

Just took it on Edgen

4 0
4 years ago
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