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
postnew [5]
2 years ago
15

During all chemical reactions, mass, energy, and charge are

Chemistry
1 answer:
choli [55]2 years ago
7 0

Answer:

The correct answer is option 2.

Explanation:

Law of conservation of Mass states that mass can neither be created nor be destroyed but it can only be transformed from one form to another form.

This also means that in a balanced chemical reaction total mass on the reactant side must be equal to the total mass on the product side.

Law of conservation of energy states that energy can neither be created nor be destroyed but it can only be transformed from one form to another form.The total energy of an  remains constant in a chemical  reaction,.

For example:

2H^++S^{2-}\rightarrow H_2S

Mass of reactants = 2\times 1 g/mol + 1\times 32 g/mol = 34 g/mol

Mass of products = (2\times 1 g/mol+1\times 32 g/mol)=34 g/mol

Charge on reactant side = Charge on product side

2\times (+1) +(-2)=0

0=0

You might be interested in
Nancy and Hiyang are training for a race. They entered some of their training notes in a chart. Which information should be adde
Mnenie [13.5K]

The information that should be added to the chart in order to find out who ran a greater distance is THE UNITS USED TO MEASURE DISTANCE EACH DAY.

In science, the use of units if very important and each record made must be accompany with relevant units that are appropriate for the measurement taken. If units are not used along with data, it will be very difficult to quantify the values that are recorded. Scientists all over the world use SI units in their works in order to ensure uniformity.

4 0
3 years ago
Read 2 more answers
Use the following graph of a car traveling on a straight northerly path to answer this question. At what time would the
BARSIC [14]

Answer:

B 144.0 s is the best answer of this question

6 0
3 years ago
Which do you think could work to reduce air pollution and global warming
natka813 [3]
Recycling!! And also planting more trees.

Hope this helps!
5 0
3 years ago
What, if any, experimental evidence do you have that the equilibrium is affected by the addition of NaOH? How is this in accorda
vitfil [10]
Sodium Hydroxide (NaOH) is also known as lye which is a base (very high ph; Alkaline)

Now, in chemistry, equilibrium is what affects the reaction rate of a reaction.  If they are in equilibrium, the concentrations of them will not change (both reactants and products).

Now, lets say that to synthesize a certain chemical, we need it to be in an acidic environment with HCL or some other acid as the catalyst for the reaction.

Well, if we were to add Sodium Hydroxide to this which is very alkaline, the ph would change greatly which affects the reaction rate.  If we do not have enough energy to overcome the activation barrier, the reaction will not occur (atleast for a very long time).

However, a common mistake is thinking that a catalyst will affect the equilibrium.  This is not true.  The reaction will still take place but it will have a very slow reaction rate.

TLDR; Adding a catalyst (like NaOH or Sodium Hydroxide) will not change the equilibrium but instead change the reaction rate.  The reaction can still occur, although it can take a very, very long time (like diamonds turning into graphite)


7 0
3 years ago
4.5cm wide by 5.750cm long by 1.50cm tall what is the volume of the box
Anni [7]

Answer:

volume of box is 38.81 cm³.

Explanation:

Given data:

Width of box = 4.5 cm

Height of box = 5.750 cm

Length of box = 1.50 cm

Solution:

Formula:

Volume = length × height × width

by putting values,

V = 1.50 cm × 5.750 cm× 4.5 cm

V = 38.81 cm³

Thus, the volume of box is 38.81 cm³.

5 0
2 years ago
Other questions:
  • How many atoms are in 16.67g of Calcium Nitrate?
    15·2 answers
  • If the percentage ionization of an 0.10 M acid is 3.0%, what is its acid dissociation constant?
    14·1 answer
  • Is this statement true or false? Ammonia is a base. A. True B. False
    11·2 answers
  • Which Example is a way that intercellular communication occurs
    5·1 answer
  • A gas has a pressure of 1.00 atm and a volume of 500 mL. When its pressure is doubled, at constant temperature, to 2.00 atm, its
    14·1 answer
  • Free points just replie and yea
    8·2 answers
  • PLEASE HELP!!!!!!!!!!<br><br> How does the words used in a text help the theme, setting, and plot?
    15·2 answers
  • Como hallar el numero de protones y el numero de electrones de un elemento
    6·1 answer
  • Name of equipments that uses in crude oil distillation?​
    6·1 answer
  • According to the article, elements are named by the number of protons in the nuclei.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!