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pickupchik [31]
4 years ago
5

Which metal is liquid at room temperature a) lead b) copper c) mercury d) sodium

Chemistry
2 answers:
Ahat [919]4 years ago
5 0

Answer:

 THE ANSWER IS MERCURY

Liula [17]4 years ago
5 0

Answer:

mercury

Explanation:

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Label B-L in the diagram below
Debora [2.8K]

Answer:

B. Polar Easterlies

C. Sub polar low

D. Prevailing westerlies

E. Sub tropical high

F. Tropical easterlies

G. Inter tropical convergence zone

H. Tropical easterlies

I. Sub tropical high

J. Prevailing westerlies

K. Sub polar low

L. Polar easterlies

Explanation:

8 0
3 years ago
Connectivity is an example of which type of property?​
aleksklad [387]

Answer:

physical property

Explanation:

......

3 0
3 years ago
If 832J of energy is required to raise the temperature of a sample of aluminum from 20.0° C to 97.0° C, what mass is the sample
LiRa [457]
Data:
Q (Amount of heat) = 832 J
m (mass) = ?
c (Specific heat) = <span>0.90 J/(g × ° C)
T (final) = 97 ºC
To (initial) = 20 ºC
</span>ΔT = T - To → ΔT = 97 - 20 → ΔT = 77 ºC

Formula:
Q = m*c*ΔT

Solving:
Q = m*c*ΔT
832 = m*0.90*77
832 = 69.3m
69.3m = 832
m =  \frac{832}{69.3}
\boxed{\boxed{m \approx 12.00\:g}}\end{array}}\qquad\quad\checkmark
5 0
3 years ago
An uncharged atom of mercury has an atomic number of 80 and an atomic mass of 200. This atom has ________ protons, ________ neut
SCORPION-xisa [38]
<h3>Answer:</h3>

             This atom has 80 protons, 120 neutrons and 80 electrons.

<h3>Explanation:</h3>

Number of Protons:

                               As the number of protons present in the nucleus are equal to the atomic number therefore. As given, the atomic number is 80 therefore, Hg contains 80 protons respectively.

Number of Electrons:

                                 As given in statement, Hg is not carrying any type of charge. It means this atom is neutral in nature. Which means, it is carrying the same number of electrons as the number of protons in order to give a neutral atom. Therefore, it contains 80 electrons.

Number of Neutrons:

                                 Number of neutrons can be calculated using following formula,

                  No. of Neutrons  =  Atomic Mass - Number of Protons

As,

                                    Atomic Mass  =  200

So,

                                    No. of Neutrons  =  200 - 80

                                    No. of Neutrons  =  120

3 0
3 years ago
What enrollment is a girl ridding a bike??
Hitman42 [59]

Answer:

It would be thermal energy.

Explanation:

Thermal energy is the energy transfer of heat which is created while doing physical activity.

6 0
3 years ago
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