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
suter [353]
3 years ago
12

Which of the following statements is true?

Chemistry
2 answers:
VikaD [51]3 years ago
8 0

Elements are substances made of only one type of atom is true,

stepladder [879]3 years ago
5 0

Answer:

Elements are substances made of only one type of atom

You might be interested in
What Is the difference between organic and inorganic matter?
Charra [1.4K]
Organic compounds are compounds that contain carbon atoms.

Organic matter is any waste product that occurs naturally (i.e. snake skin, feces, and other traces of life).

Inorganic matter would lack carbon compounds. Radioactive waste at nuclear power plants is inorganic.
3 0
3 years ago
Read 2 more answers
A 65.0-gram sample of some unknown metal at 100.0° C is added to 177.1 grams of water at 24.5° C. The temperature of the water r
jeka94
<span>B.) 0.900 J/ (°C × g). </span>
7 0
3 years ago
In the process of electrolysis current can flow through a liquid because
Harman [31]
Negative ions are attracted to the anode. In the process of electrolysis, current can flow through a liquid because negative ions are attracted to the anode.
3 0
3 years ago
Read 2 more answers
Which response is a positive way to manage stress?
Xelga [282]

Answer: Eating healthy is a postive way

Explanation:

6 0
3 years ago
Consider the reaction PCl5(g) ⇌ PCl3(g) + Cl2(g). If 0.02 moles of PCl5, 0.04 moles of PCl3, and 0.08 moles of Cl2 are combined
Furkat [3]

Answer:

The reaction quotient (Q) before the reaction is 0.32

Explanation:

Being the reaction:

aA + bB ⇔ cC + dD

Q=\frac{[C]^{c} *[D]^{d} }{[A]^{a}*[B]^{b}  }

where Q is the so-called reaction quotient and the concentrations expressed in it are not those of the equilibrium but those of the different reagents and products at a certain instant of the reaction.

The concentration will be calculated by:

Concentration=\frac{number of moles of solute}{Volume}

You know  the reaction:

PCl₅ (g) ⇌ PCl₃(g) + Cl₂(g).

So:

Q=\frac{[PCl_{3} ] *[Cl_{2} ] }{[PCl_{5} ]}

The concentrations are:

  • [PCl₃]=\frac{0.04 moles}{0.5 L} =0.08 \frac{moles}{L}
  • [Cl₂]=\frac{0.08 moles}{0.5 L} =0.16 \frac{moles}{L}
  • [PCl₅]=\frac{0.02 moles}{0.5 L} =0.04 \frac{moles}{L}

Replacing:

Q=\frac{0.08*0.16}{0.04}

Solving:

Q= 0.32

<u><em>The reaction quotient (Q) before the reaction is 0.32</em></u>

4 0
3 years ago
Other questions:
  • Approximately how many moles of chlorine make up 1.79 x 10^23 atoms of chlorine?
    14·1 answer
  • For a given arrangement of ions, the lattice energy decreases as ionic radius ________ and as ionic charge ________.
    11·1 answer
  • Which of the following is NOT a product of the electrolysis of NaCl? A. Chlorine gas B. None of these C. Hydrogen gas D. Oxygen
    13·1 answer
  • A student reacted NiS2 (MM = 122.83 g/mol) with O2 (MM=32.00 g/mol) to make SO2 (MM=64.07 g/mol) according to this balanced equa
    9·1 answer
  • How much heat in kilojoules is required to heat 56 l of water from 89 ∘f to 212 ∘f?
    5·1 answer
  • What is the process of removing the bacteria?
    12·1 answer
  • A scientist measured an increase in nitrous oxide in the atmosphere. This increase would result in
    7·2 answers
  • Explain two ways that voltaic cells and electrolytic cells are similar AND two ways that they differ.
    14·1 answer
  • Using the information make a graph.
    11·1 answer
  • A student combines a clear, dark blue solution with a clear, colorless solution and agitates the test tube. The combination resu
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!