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
hodyreva [135]
3 years ago
7

How many grams of calcium are required to free 8 grams of hydrogen gas from hydrochloride acid, HCl?

Chemistry
1 answer:
Gala2k [10]3 years ago
4 0

Answer:

The answer to your question is 160 g of Calcium

Explanation:

Data

mass of Calcium = ?

mass of Hydrogen = 8 g

reactant = HCl

Process

1.- Write the balanced chemical reaction

             Ca  + 2HCl   ⇒   CaCl₂  +  H₂

2.- Look for the atomic number of Calcium and hydrogen

Calcium = 40 g

Hydrogen = 1 x 2 = 2 g

3.- Use proportions to calculate the mass of calcium needed.

            40 g of Calcium ---------------- 2 g of hydrogen

               x                      ----------------- 8 g of hydrogen

                         x = (8 x 40) / 2

                         x = 320/2

                         x = 160 g of Calcium

You might be interested in
What was the purpose of letting the transformed cells sit in LB for a few minutes before spreading them onto the plates?
AlekseyPX
I think c ... C this is the correct
8 0
3 years ago
What five elements make up 99% of living things
MA_775_DIABLO [31]

Answer:

oxygen, carbon, hydrogen, nitrogen, and sulfur

Explanation:

4 0
2 years ago
#5.) Explain why the rock cycle is referred to as a "cycle".
Natalka [10]
The rock cycle is referred to as cycle because it repeats over and over again. The definition of cycle is a series of events that are regularly related in the same order. So with the rock cycle they stay in the same order and repeat.
Hope this helps :)
5 0
3 years ago
Read 2 more answers
Why is iron described as an element
Harrizon [31]
Iron is a type of element because iron is metal and metal is also a mineral
Hoped this helped
5 0
3 years ago
Which force is most responsible for binding together an atom’s protons and neutrons?
vampirchik [111]

Answer:

Hello There!!

Explanation:

I believe the answer is nuclear.

hope this helps,have a great day!!

~Pinky~

3 0
2 years ago
Read 2 more answers
Other questions:
  • Does polonium lend or borrow electrons?
    15·2 answers
  • Which of the following is considered applied research?
    15·1 answer
  • If you have 66 pencils, how many dozen do you have
    14·1 answer
  • What is an isotope?
    6·1 answer
  • Which of the following laboratory procedures best illustrates the law of conservation of mass?
    7·2 answers
  • What is the difference between a subscript and a coefficient in a chemical reaction?​
    15·1 answer
  • Law of electrolysis was given by<br>a.lamark. b.Ostwald<br>c.Faraday. d.Arrhenius<br>​
    7·1 answer
  • A bond formed between Iron and Chlorine would<br> result in what type of bond?
    14·1 answer
  • Methane (CH4) undergoes combustion. Which products form?
    9·2 answers
  • Can you use a meat thermometer to take your temperature?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!