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
What is the maximum concentration of Ag⁺ that can be added to a 0.00750 M solution of Na₂CO₃ before a precipitate will form? (Ks
Firlakuza [10]

Answer:

\large \boxed{1.64\times 10^{-5}\text{ mol/L }}

Explanation:

Ag₂CO₃(s) ⇌2Ag⁺(aq) + CO₃²⁻(aq); Ksp = 8.10 × 10⁻¹²

                           2x      0.007 50 + x

K_{sp} =\text{[Ag$^{+}$]$^{2}$[CO$_{3}^{2-}$]} = (2x)^{2}\times 0.00750 = 8.10 \times 10^{-12}\\0.0300x^{2} = 8.10 \times 10^{-12}\\x^{2} = 2.70 \times 10^{-10}\\x = \sqrt{2.70 \times 10^{-10}} = \mathbf{1.64\times 10^{5}} \textbf{ mol/L}\\\text{The maximum concentration of Ag$^{+}$ is $\large \boxed{\mathbf{1.64\times 10^{-5}}\textbf{ mol/L }}$}

 

3 0
3 years ago
What mass of K2SO4 would you measure out to prepare 550 ml of a 0.76 M solution
Nikolay [14]
The molecular weight of K2SO4 is 174.26 g/mole. The mass of K2SO4 required to make this solution is calculated in the following way. 
550mL * (0.76mole/1000mL) * (174.26g/mole) = 72.84gram
<span>I hope this helps.</span>
5 0
3 years ago
Read 2 more answers
The magnitude of an earthquake, measured on the Richter Scale, is M log1o T where / is the amplitude registered on a seismograph
just olya [345]

<u>Answer:</u> The magnitude rating for an earthquake causing an amplitude 10,000,000 times I_o is 7.

<u>Explanation:</u>

Richter scale is defined as the scale which expresses the magnitude of earthquake on the basis of the seismograph oscillations.

The equation used to measure the magnitude of an earthquake on Richter scale is:

M=log_{10}\frac{I}{I_o}

where

I = amplitude registered on seismograph 100 km away from seismic center = 10,000,000I_o

I_o = small amplitude

Putting values in above equation, we get:

M=\log_{10}(\frac{10000000I_o}{I_o})\\\\M=7

Hence, the magnitude rating for an earthquake causing an amplitude 10,000,000 times I_o is 7.

8 0
3 years ago
Grade 8 Science
ira [324]
Materials<span> and their </span>properties<span>: </span>compounds like<span> sodium chloride - an interactive educational resource for 11 to 14 year olds. ... Elements are substances (</span>like<span> hydrogen and oxygen) that can't be split into simpler substances. ... For </span>each<span> statement, decide whether it describes a mixture or a </span>compound<span> and check the box.</span>
8 0
3 years ago
Complete the balanced dissociation equation Cs2CO3
MaRussiya [10]

The balanced dissociation equation for Cs₂CO₃ is:

Cs₂CO₃(aq) —> Cs⁺(aq) + CO₃²¯(aq)

A dissociation equation is an equation showing the available ions present in a solution.

To obtain the dissociation equation, the compound must be dissolved in water to produce an aqueous solution.

The dissociation equation for Cs₂CO₃ can be written as follow

Cs₂CO₃(aq) —> Cs⁺(aq) + CO₃²¯(aq)

Learn more about dissociation equation: brainly.com/question/1903354

3 0
2 years ago
Other questions:
  • Which of the following causes high and low tides on Earth? A. The moon's gravitational pull on Earth causes water to bulge on tw
    12·2 answers
  • List the qualities of the atmosphere that makes it safe to live on this planet
    8·1 answer
  • Which of the following best describes exothermic chemical reactions?<br>​
    9·1 answer
  • Define molecular formula and empirical formula. What are the similarities and differences between the empirical formula and mole
    5·1 answer
  • What is the number of moles of gas contained in a 3 L vessel at 300 K with a pressure of 1.50 atm? (Given: R = 0.08205 L∙atm/mol
    12·1 answer
  • True or false transuranium elements are synthetic elements with atomic #’s of 93 or higher.
    5·1 answer
  • Which of the following describes wind direction?
    14·2 answers
  • How many grams of Carbon are there in 1.95 moles of Glucose (C6H12O6)?
    8·1 answer
  • PLEASEEEEE ANSWERRR??
    7·1 answer
  • Block A is made of copper, which has a specific heat value of 0.385 J/g*C.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!