1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
GalinKa [24]
3 years ago
5

At melting point, a substance exists as

Chemistry
1 answer:
Nadya [2.5K]3 years ago
5 0
For a substance to melt it has to be a solid
You might be interested in
What is the temperature of 1.485 moles of N₂ gas at a pressure of 1.072 atm and a volume of 20 L?
morpeh [17]

Answer:

178.67K

Explanation:

PV=nRT

T=PV/nR

= 1.072atm*20L/1.485mol*0.0821LatmK^-1

=178.67K

8 0
4 years ago
Is there more or less air near sea level
vampirchik [111]

there is more air near sea level

7 0
3 years ago
Given that the molar mass of NaCl is 58.44 g/mol, Solve for the molarity of a solution that contains 87.75 g of NaCl in 500 mL o
aliina [53]

Molarity is defined as the number of moles of solute per 1 L of solvent.

the mass of NaCl in the solution is 87.75 g

number of moles of NaCl is calculated by dividing mass present by molar mass

number of NaCl moles = 87.75 g / 58.44 g/mol = 1.502 mol

the number of NaCl moles in 500 mL is - 1.502 mol

therefore number of NaCl moles in 1000 mL is - 1.502 mol/ 500 mL x 1000 mL/L = 3.004 mol

molarity of NaCl is - 3.004 M

answer is D. 3.00 M

5 0
3 years ago
Read 2 more answers
How many atoms are there in 5.8 mol of iron
kkurt [141]
4.0 mol. 6.02 x 10. 23 atoms. 3. How many moles are in 2.5g of lithium? 2.5 grams Li. 1 mole. = 0.36 mol. 6.9 g. 4. Find the mass of 4.8moles of iron. 4.8 moles.
5 0
3 years ago
Question 4 of 5
Nastasia [14]

Answer:

B

Explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • What kind of fossil fuel is hydrocarbon
    5·1 answer
  • Magine that you have a metal bar sitting half in the Sun and half in the dark. On a sunny day, the part of the metal that has be
    10·1 answer
  • How many earthquakes occur each day around the globe?
    9·1 answer
  • How does a sample of water at 38 °C compare to a sample of water at 295 K?
    13·1 answer
  • A fixed quantity of gas at 21 °c exhibits a pressure of 752 torr and occupies a volume of 5.12 l. (a) calculate the volume the g
    12·2 answers
  • An analytical chemist weighs out of an unknown diprotic acid into a volumetric flask and dilutes to the mark with distilled wate
    12·1 answer
  • How many grams of KI can be dissolved in 300gH2O at 10C?
    7·1 answer
  • What contribution did Niels Bohr make to atomic theory
    5·1 answer
  • Hello! Help me please.<br><br>​
    12·1 answer
  • For the following chemical equation.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!