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
Naily [24]
2 years ago
11

Which statement about the balanced equations for nuclear and chemical changes is correct? (1 point)

Chemistry
2 answers:
Juli2301 [7.4K]2 years ago
4 0

Answer:

last option. A nuclear equation is balanced according to mass number. A chemical equation is balanced according to the total mass before and after the change.

Explanation:

took the test.

iris [78.8K]2 years ago
3 0

The true statement about the balanced equations for nuclear and chemical changes is; both are balanced according to the total mass before and after the change.

A basic law in science is called the law of conservation of mass. Its general statement is that mass can neither be created nor destroyed.

Both in chemical and nuclear changes, mass is involved and in both cases, the law of conservation of mass strictly applies.

This means that for both chemical and nuclear changes; total mass before reaction must be equal to total mass after reaction.

Hence, both reactions are balanced according to the total mass before and after the change.

Learn more: brainly.com/question/22064431

You might be interested in
Calculate the number of moles of caco3 (calcium carbonate, or limestone) in a 20.0g sample of this substance
Brrunno [24]
First calculate for the molar mass of the given formula unit, CaCO₃. This can be done by adding up the product when the number of atom is multiplied to its individual molar mass as shown below.

     molar mass of CaCO₃ = (1 mol Ca)(40 g Ca/mol Ca) + (1 mol C)(12 g of C/1 mol of C) + (3 mols of O)(16 g O/1 mol O) = 100 g/mol of CaCO₃

Then, divide the given amount of substance by the calculated molar mass.
            number of moles = (20 g)(1 mol of CaCO₃/100 g)
             number of moles = 0.2 moles of CaCO₃

<em>Answer: 0.2 moles</em>
6 0
3 years ago
Chemical energy sources are often portable and provide large amounts of energy. Fossil fuels are one kind of chemical energy sou
konstantin123 [22]

Answer:You can reduce our carbon footprints by using renewable energy,

Explanation:

4 0
2 years ago
Balance the following equation:
Sonbull [250]
You only need a 2 at the end In front of the NaCl
5 0
2 years ago
How many grams of h20 are produced if 75g of CO2 are produced. (Work Shown with the answer would be preferred.)
Agata [3.3K]
2:7 ratio of ethane to O2 = 15:x 9solve for x)
x=52.5 mol O2
5 0
3 years ago
A. Reaction with what gas in the atmosphere makes natural rain water slightly acidic? (2 points)
Vlada [557]

Answer:

See explanation

Explanation:

On the pH scale acidity ranges from pH values of 0-6.9. Natural rain water is slightly acidic due to the presence of carbon dioxide in the atmosphere which is an anhydride of carbonic acid.

CO2(g) + H2O(l) -------> H2CO3(aq)

B. The equations that turn sulfur to sulfuric acid are;

S(l) + O2(g) -----> SO2(g)

2SO2(l) + O2(g) -----> 2SO3(g)

SO3(g) + H2SO4(l) -----> H2S2O7(l)

H2S2O7(l) + H2O(l) ----> 2H2SO4(l)

-

At pH 6, H^+ concentration = 1 * 10^-6 M

At pH 2, H^+ concentration = 1 * 10^-2 M

Hence;

1 * 10^-2/1 * 10^-6

= 10^4 times more acidic

5 0
3 years ago
Other questions:
  • Consider the halogenation of ethene, where x is a generic halogen: h2c=ch2(g)+x2(g)→h2xc−ch2x(g) you may want to reference (page
    7·1 answer
  • What energy is needed to make evaporation happen
    15·1 answer
  • Calculate the empirical formula of a compound with the following
    13·1 answer
  • Would you expect the Mg3[Cr(CN)6]2 to be diamagnetic or paramagnetic? Explain your reasoning.
    14·1 answer
  • when the concentration of hydrogen ions in a solution is decreased by a factor of ten, the pH of the solution
    14·1 answer
  • When light hits the Earth at a greater angle, what does this cause?​
    13·1 answer
  • When the dry ingredients of a cake are combined, what is the result? A.Element B.Mixture C.Compound D.Atom
    11·2 answers
  • Part b (r)–3-chloro-2-methylhexane will undergo a nucleophilic substitution reaction in the presence of sodium ethoxide and etha
    13·1 answer
  • 1.5 moles of Al is how many<br> atoms?
    5·1 answer
  • What is the volume of 0.5 M solution of NaOH that contains 3.6 mol of solute?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!