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
SOVA2 [1]
3 years ago
9

1. Define the law of conservation of matter/mass AND explain what happens to atoms/ions in a chemical reaction.

Chemistry
1 answer:
Stella [2.4K]3 years ago
6 0

Answer:

No atoms are created or destroyed in a chemical reaction. The Law of Conservation of Mass dates from Antoine Lavoisier's 1789 discovery that mass is neither created nor destroyed in chemical reactions.

Explanation:

In other words, the mass of any one element at the beginning of a reaction will equal the mass of that element at the end of the reaction.

This means that the total mass of the products in a chemical reaction will be the same as thetotal mass of the reactants .

You might be interested in
The biopsychosocial perspective, compared with the perspectives of Freud, Jung, and Rogers, __________.
jarptica [38.1K]

Answer:

<h2>Is broader than other models </h2>

Explanation:

George Engel conceptualised the biospychosocial model in 1977. He suggested apart from the biological condition a persons medical condition is also dependent on social and psychological factors.

This model is used in cases of chronic pain and considers the pain as a psychophysiological behaviour pattern that cannot be categorised into social, psychological and biological perspective.

There are suggestions that physiotherapy should be integrated into psychological treatment to address the various components that comprises the experience of pain.

8 0
3 years ago
23. What are the correct formulas and coefficients for the products of the following double replacement reaction? Al(OH)3 + H3PO
NikAS [45]
23. The correct answer would be a (AlPO4 + H2O).

This is an example of a neutralization reaction (an acid and a base react to form water and a salt).

24. a, combination reaction. There are two reactants and one product.
3 0
3 years ago
Physical and chemical properties
likoan [24]

Answer:

Chemical properties

-It is  not reverseable

-Change in energy is  seen

-It is permanent change

-The change take place in both physical and chemical properties of matter

Physical properties

-The change takes place only in physical property of matter

-It can be reversed back

-It is temporary change

-Change in energy is not seen

6 0
4 years ago
The formula for a buffer solution contains 1.24% w/v of boric acid. How many milliliters of a 5% w/v boric acid solution should
Yanka [14]

Answer:

248 mL of 5% w/v boric acid solution should be used to obtain the solution needed.

 

Explanation:

We can calculate the volume of the 5% w/v boric acid solution needed to prepare the buffer solution 1.24% w/v using the following equation:

C_{i}V_{i} = C_{f}V_{f}

Where:

C_{i}: is the concentration of the initial solution = 5% w/v

C_{f}: is the concentration of the final solution = 1.24% w/v

V_{i}: is the volume of the initial solution =?

V_{f}: is the volume of the final solution = 1 L

Hence, the volume of the 5% solution is:

V_{i} = \frac{C_{f}V_{f}}{C_{i}} = \frac{1.24 \%*1 L}{5 \%} = 0.248 L = 248 mL

Therefore, 248 mL of 5% w/v boric acid solution should be used to obtain the solution needed.

I hope it helps you!                  

6 0
3 years ago
Who wants some points
Sidana [21]

Answer:

hi

Explanation:

againnnnnnnnnnnnn

5 0
3 years ago
Read 2 more answers
Other questions:
  • How much potassium chlorate (KCIO3) must decompose in order to produce 150 grams of oxygen gas (O2)?
    14·1 answer
  • Which of the following is represented in the highest percentage by volume in dry air?
    14·2 answers
  • The characteristic odor of pineapple is due to ethyl butyrate, a compound containing carbon, hydrogen, and oxygen. Combustion of
    8·1 answer
  • Match each vocabulary word with the correct definition. 1. differs in number of neutrons isotope 2. number of protons fusion 3.
    14·2 answers
  • If a chemist weighs 742.3 mg of aluminum on a scale what is the amount of decigrams
    7·2 answers
  • The vaporization of 1 mole of liquid water (system) at 100.9 C, 1.00 atm, is endothermic.
    11·1 answer
  • What salt is formed when aminobutane reacts with sodium???​
    9·1 answer
  • How many molecules are there in 39 grams of water
    6·2 answers
  • Why cant acid anhydrides(oxides) react with acids?​
    14·2 answers
  • Which of the following equations is balanced?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!