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victus00 [196]
3 years ago
14

The SI unit for current is: joules volts ohms amps

Chemistry
1 answer:
Sonja [21]3 years ago
4 0
Ampere is the si unit of current
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What is the energy needed for a substance to change from a liquid state to a gaseous state?
pshichka [43]
Heat of vaporization (During which the temperature stays the same)
6 0
3 years ago
Determine the concentration of a solution made by dissolving 44.0 g of calcium chloride (CaCl2) in 0.30 L of solution. SHOW YOUR
ycow [4]

Answer:

[CaCl₂] = 1.32 M

Explanation:

We know the volume of solution → 0.30 L

We know the mass of solute → 44 g of CaCl₂

Let's convert the mass of solute to moles.

44 g . 1 mol / 110.98 g = 0.396 moles

Molarity (mol/L) → 0.396 mol / 0.3 L  = 1.32 M

6 0
3 years ago
A sample of nitrogen gas had a volume of 500. mL, a pressure in its closed container of 740 torr, and a temperature of 25 °C. Wh
Nat2105 [25]

Answer:

527.68 mL

Explanation:

We will assume that nitrogen is behaving as ideal gas here.

For ideal gas the gas law is:

\frac{P_{1}V_{1}}{T_{1}}=\frac{P_{2}V_{2}}{T_{2}}

Where

P1= initial pressure = 740 torr

V1= initial volume = 500mL

T1= initial temperature = 25⁰C = 298 K

P2= final pressure = 760 torr

V2= final volume = ?

T2= final temperature = 50⁰C = 323 K

Putting values in the gas law

Final volume = \frac{740X500X323}{298X760}= 527.68 mL

5 0
3 years ago
2,2-dichlorohexane 4 , 4 Give two reason, explain why 2,2-dichloro-3-methylbutane has structure isomer of 2, 2 dichloropentane.
matrenka [14]

Answer:explain why 2,2-dichloro-3-methylbutane has structure isomer of 2, 2 dichloropentane. ​Although there are 12 hydrogen atoms in the molecule, there only 4 possible 1H chemical environments for the hydrogen atoms in 2-methylbutane molecule.

Explanation:

4 0
3 years ago
In order to prove that the Law of Conservation Mass is obeyed, what are the coefficients
Brums [2.3K]

Answer: C_3H_8+5O_2\rightarrow 3CO_2+4H_2O

Explanation:

According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.

The balanced chemical equation for combustion of propane will be :

C_3H_8+5O_2\rightarrow 3CO_2+4H_2O

5 0
3 years ago
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