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bazaltina [42]
3 years ago
8

What does group 4 in the periodic table all have in common

Chemistry
1 answer:
belka [17]3 years ago
8 0

Answer:

they are semi metals, so they have the properties of semimetals in commen

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Some velomobile seats have been designed to hold ice packs inside their cushions. If you started a ride with ice packs that held
Cerrena [4.2K]

Answer : The heat energy absorbed will be, 1.23\times 10^5cal

Solution :

The process involved in this problem are :

(1):H_2O(s)(0^oC)\rightarrow H_2O(l)(0^oC)\\\\(2):H_2O(l)(0^oC)\rightarrow H_2O(l)(32.0^oC)

The expression used will be:

\Delta H=m\times \Delta H_{fusion}+[m\times c_{p,l}\times (T_{final}-T_{initial})]

where,

m = mass of ice = 1100 g

c_{p,l} = specific heat of liquid water = 4.18J/g^oC

\Delta H_{fusion} = enthalpy change for fusion = 6.01kJ/mole=6010J/mole=\frac{6010J/mole}{18g/mole}J/g=333.89J/g

Molar mass of water = 18 g/mole

Now put all the given values in the above expression, we get:

\Delta H=1100g\times 333.89J/g+[1100g\times 4.18J/g^oC\times (32.0-0)^oC]

\Delta H=514415J=122948.1358cal=1.23\times 10^5cal

Conversion used : (1 cal = 4.184 J)

Therefore, the heat energy absorbed will be, 1.23\times 10^5cal

7 0
3 years ago
Which subatomic particle accounts for magnetism ?
Natalija [7]

Answer:

Each atom has electrons, particles that carry electric charges. Spinning like tops, the electrons circle the nucleus, or core, of an atom. Their movement generates an electric current and causes each electron to act like a microscopic magnet

Explanation:

trust me

4 0
1 year ago
GIVING BRAINLYYY
Oksanka [162]
Silver (Ag) is likely to be less reactive
7 0
3 years ago
What is the name of this compound?
Digiron [165]
2,2-dichloroheptane  because we have two Cl we should use the prefix ''di'' and the numbers "2" and "2" indicated that the two functional groups are located on the same second carbon 
6 0
3 years ago
7.7 cm<br> 9.8 cm<br> 0.00<br> 0.162 m
eimsori [14]

Answer:

Volume = 1222.5cm³

Explanation:

<em>If the question is about the volume of the rectangle:</em>

The volume of a rectangle is obtained by the multiplication of its 3 dimensions: Length, width, height.

In the problem, the length of the rectangle is 0.162m = 16.2cm

The width is 7.7cm

And the height is 9.8cm

The volume is:

Volume = 16.2cm*7.7cm*9.8cm

<h3>Volume = 1222.5cm³</h3>
5 0
2 years ago
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