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
mel-nik [20]
3 years ago
15

Zinc can be removed from bronze by placing bronze in hydrochloric acid. The zinc reacts with the hydrochloric acid producing zin

c chloride and hydrogen gas, leaving copper behind. If the reaction yields 0.680 g H2, what is the percent yield?
Chemistry
1 answer:
Ber [7]3 years ago
8 0

Answer:The Zinc Reacts With The Hydrochloric Acid Producing Zinc Chloride And Hydrogen Gas, And Leaving The Copper Behind. A. If 25.0 G Of Zinc ... Zn+ 2 HCI --> ZnCl2 + H2 (answer .771 G H2) B. If The Reaction Yields . ... If 25.0 g of zinc are in a sample of bronze, determine the theoretical yield of hydrogen gas. Zn+ 2 HCI

You might be interested in
Emily floats a note across a river to Dylan instead of directly passing it from her hand to Dylan's hand. If, in this scenario,
slega [8]

Answer: The Note

Explanation: Neurotransmitters are endogenous chemical substances that transmits signals through a NEUROMUSCULAR JUNCTIONS.

The signals are transmit from one NERVE CELL TO THE TARGET POINT such as Muscle cell,gland cell etc. Neurotransmissiom require the presence of synapse(the structure or medium through which neurosignals which can be an electrical or chemical signals to pass through).

8 0
3 years ago
Read 2 more answers
Why might a scientist repeat an experiment if he/she did not make a mistake in the first one? An experiment should be repeated t
makvit [3.9K]

The answer is C. To ensure the results are accurate.

5 0
3 years ago
Read 2 more answers
Determine the vapor pressure (atm) of rubbing alcohol (isopropanol) at 20.0 °C. The normal boiling point of isopropanol is 82.3
jeyben [28]
Here we apply the Clausius-Clapeyron equation:
ln(P₁/P₂) = ΔH/R x (1/T₂ - 1/T₁)

The normal vapor pressure is 4.24 kPa (P₁)
The boiling point at this pressure is 293 K (P₂)
The heat of vaporization is 39.9 kJ/mol (ΔH)
We need to find the vapor pressure (P₂) at the given temperature 355.3 K (T₂)

ln(4.24/P₂) = 39.9/0.008314 x (1/355.3 - 1/293)
P₂ = 101.2 kPa
8 0
3 years ago
Imagine a substance that is a red, shiny solid at room temperature, with a melting point of 115 °C. It is brittle and a poor con
AlexFokin [52]

Explanation:

Metals and non-metals can be identified either by their position in the periodic table or by their properties.

he metal elements are found on the left hand side of the periodic table, and the non-metal elements are found on the right. You can imagine a zig-zag line, starting at B-Al-Si, separating metals from non-metals.

3 0
3 years ago
What product of the krebs cycle is considered a waste product of the reaction?
Rufina [12.5K]
The answer is carbon dioxide 
5 0
3 years ago
Other questions:
  • How does the reaction of hydrogen and oxygen to produce energy in a fuel cell differ from their interaction during the direct co
    6·1 answer
  • The carbon dioxide exhaled by astronauts can be removed from a spacecraft by reacting it with lithium hydroxide (LiOH). The reac
    5·1 answer
  • Static charges can be applied to neutral objects by friction, induction or conduction. What do all of these methods utilize to c
    7·1 answer
  • The Cherokees have a certain view of nature. Which of the following views would be most similar to those of the Cherokees?
    5·1 answer
  • When two or more atoms chemically combine, they make a
    12·1 answer
  • Your friend, a business major, overhears you talking about chemical energy and food and decides to develop a new super food for
    6·1 answer
  • Which distinguishes chemical changes from physical changes?
    5·1 answer
  • SOMEONE HELP ASAPP...
    12·2 answers
  • What is the mass of 2.486 * 10^{24} atoms of neon?
    9·1 answer
  • How is a gas affected when pressure temperature or volume change
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!