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
Anika [276]
3 years ago
13

In the chemical reaction below, calcium metal and water react to form calcium hydroxide and hydrogen gas. calcium metal + water

→ calcium hydroxide + hydrogen gas Calcium and water are the reactants in this chemical reaction, whereas calcium hydroxide and hydrogen gas are the products that are formed. Once the reaction reaches completion
A.
the products of the reaction will have changed back into the reactants.
B.
the total mass of the products will be less than the original mass of the reactants.
C.
the total mass of the products will be greater than the original mass of the reactants.
D.
the total mass of the products will be equal to the original mass of the reactants.
Chemistry
1 answer:
7nadin3 [17]3 years ago
3 0

D. the total mass of the products will be equal to the original mass of the reactants.

Explanation:

                  Ca + 2H₂O → Ca(OH)₂ + H₂

From this chemical reaction, one can conclude that when the reaction reaches completion, the total mass of the products will be equal to the original mass of the reactants. This is in compliance with the law of conservation of mass.

  • The law of conservation of mass states that matter is the mass of products in a chemical reaction is the same as mass of the reactants.
  • This implies that the mass of the products in a given reaction is the same as that of the reactants.
  • No mass is lost in the process of a chemical change.

Learn more:

law of conservation of mass brainly.com/question/5896850

law of conservation of matter brainly.com/question/2190120

#learnwithBrainly

You might be interested in
PLEASE ANSWER CORRECTLY FOLLOWING GUIDLINES SO ANSWER WONT GET DELETED I REALLY NEED HELP
blagie [28]

Chemical reaction

equation

reactants

products

yields

mass

balanced

atoms

coefficients

numbers

element

correct

substance

two

Explanation:

did my best lol I'm like 98.69% confident

8 0
2 years ago
How do you intrusive rocks form
Elodia [21]

Answer: Intrusive rock also called plutonic rock. They are formed from magma forced into older rocks at depths within the earths crust.

Explanation:

8 0
3 years ago
How important is it for scientists and engineers to be able to control the design of
Hatshy [7]

It is important for scientists and engineers to be able to control the design of the material because<u> it create solutions to problems</u>.

<h3>Why material science and engineering is important?</h3>

What things are made of and why they behave the way they do are lessons we learn from materials science. Materials engineering teaches us how to use knowledge to improve things and the way they are made. Research and industry innovation in fields as diverse as aerospace and medicine are driven by materials science and engineering.

<h3>Why is it important for scientists to use the scientific method?</h3>

The scientific method is essential because: It follows a set of rules. Scientists conduct experiments in a standardized manner because the steps used in the scientific method are systematic. This suggests that their research might be spread widely.

To know more about aerospace :

brainly.com/question/27182063

#SPJ9

4 0
1 year ago
Calculate the specific heat of the substance if 373 J is required to raise the temperature of a 312 gram sample by 25°C?
I am Lyosha [343]

Explanation:

Q = 373J

∆∅ = 25°C

m = 312g

c = x

Q = mc∆∅

373 = 312(x)(25)

373 = 7800x

x = 373/7800

x = 0.0478J/(g°C)

4 0
3 years ago
2.
schepotkina [342]

Answer:

b. 6.02 x 1023 molecules

Explanation:

The formula mass of ammonia is 14 + 1 × 3 = 17.

The number of moles in 27.6g ammonia is 27.6 ÷ 17 = 1.62 mol.

A mole is 6.02 × 10²³, so the number of hydrogen atoms in a 1.62 moles of ammonia is 1.62 × 6.02 × 10²³ × 3 = 2.93 × 10² atoms.

3 0
2 years ago
Other questions:
  • Which of the following is a starting compound during cellular respiration? Carbon dioxide Glucose Mitochondria Water
    8·2 answers
  • 5) Which of these are intensive properties?
    14·1 answer
  • Which of the following do you expect to have soil with the highest fertility
    7·1 answer
  • When an acid solution exactly neutralizes a base
    14·1 answer
  • What pigments can you expect to find in the spinach? (Select all that apply.) a. Anthocyanins (blue) b. Carotenes (orange) c. Po
    7·1 answer
  • Find the ratio of the volume divided by the
    7·1 answer
  • In both nuclear fission and nuclear fusion reactions, energy is converted to mass.
    15·2 answers
  • if a layer of sandstone is in contact with a mass of granite that contain small pieces of the Sandstone which rock is older
    8·1 answer
  • What is the pressure of 0.5 mol of nitrogen gas in a 5 L container at 203 K
    9·1 answer
  • Is it possible to have an electromagnetic wave with a wavelength (a) of 104.68 m and an energy of 3.25 x 10-27 J? Show your work
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!