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sashaice [31]
3 years ago
13

Most metals are in the liquid state at room temperature.

Chemistry
1 answer:
Alexxandr [17]3 years ago
7 0
That statement is False.

Most metals are in the solid state at room temperature. The only metal that is in liquid state in the room temperature is Mercury, (Hg)
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Calculate the molarity of a solution that contains 3.11 mol of NaNO3 dissolved in 2.50 L. Enter your answer in the provided box.
rusak2 [61]

Answer:

Molarity of a solution that contains 3.11 mol of NaNO3 is 1,24 M

Explanation:

We understand molarity as the number of moles of solute that are contained in 1 L of solution, then if in a solution of 2.50 L we have 3.11 moles, it remains to calculate how many moles do we have in 1 liter.

2,50 L .......... 3,11 moles

1 L .................. x

X = ( 1 L x 3,11 moles) / 2,50 L = 1,24

8 0
3 years ago
What volume would 4.5 moles of helium gas occupy at STP?
zzz [600]

Answer:

100.8 dm3

Explanation:

mol= volume      

       _______

       molar volume  

Simply transpose the formula      

volume=mol x molar volume  

           4.5molx22.4 mol/dm3

=   100.8dm3

NB  STP=22.4 dm3  or 22400 cm3

7 0
3 years ago
Which substance is an inorganic compound?<br> A) water<br> B) glucose<br> C) protein<br> D) DNA
Ganezh [65]

Water is an inorganic compound.

<h3>What is an Inorganic compound?</h3>

An inorganic compound are those which don't possess carbon atom in it.

On the other hand, organic compound possesses carbon atoms which are

linked to other elements.

Examples of organic compounds include the following:

  • Glucose
  • Protein
  • DNA etc.

Water comprises of Hydrogen and Oxygen atoms thereby making it an

inorganic compound.

Read more about Inorganic compound here brainly.com/question/2169750

6 0
3 years ago
Read 2 more answers
Atoms P and Q have 5 and 1 electrons in their outermost shell respectively. What is the formula after P and Q react to form cova
Debora [2.8K]

Answer:

p+5-1-q

Explanation:

3 0
3 years ago
What is neutron number for calcium ​
notka56 [123]

Answer:

20 neutrons

Explanation:

(not really any just look at a periodic table)

5 0
3 years ago
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