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
NISA [10]
2 years ago
6

According to the law of conservation of matter, the number of_______is not changed by a chemical reaction

Chemistry
1 answer:
nikdorinn [45]2 years ago
6 0

Answer:

Atoms

Explanation:

According to the law of conservation of matter, matter is neither created nor destroyed, so we must have the same number and kind of atoms after the chemical change as were present before the chemical change.

You might be interested in
Help PlS AFAP and thank you so much
Triss [41]

Answer:

B

Explanation:

idk how to explain, B is the definition of conduction

8 0
3 years ago
Read 2 more answers
A radioactive nuclide is used to detect eye tumors. An atom of this radionuclide contains 15 protons, 15 electrons, and
statuscvo [17]

Answer: ³²P

Explanation:

The radionuclide in question is known as Phosphorus-32. It is an isotope of Phosphorus that is radioactive and has one more neutron than the normal phosphorus does.

Phosphorus does not exist in nature and is created artificially by bombarding the normal stable phosphorus with neutrons. Due to its radioactive nature, it has proven to be useful in the medical industry where it has been used to detect eye tumors as well as in treating some diseases.

4 0
3 years ago
2. A 2.5 mol SAMPLE OF OXYGEN GAS (O2) INCREASES TO 3.2 mol
lana [24]

696.32 mmHg is the final pressure of the gas.

<h3>What is an ideal gas equation?</h3>

The ideal gas equation, pV = nRT, is an equation used to calculate either the pressure, volume, temperature or number of moles of a gas.

Given data:

P_1 = 720 mmHg              

P_2 = ?

n_1 = 2.5 mol                

n_2 = 3.2 mol

V_1 = 34 L            

V_2 = 45 L

Formula

Combined gas law

\frac{P_1 V_1}{n_1}  = \frac{P_2 V_2}{n_2}

P_2 = 696.32 mmHg

Hence, 696.32 mmHg is the final pressure of the gas.

Learn more about an ideal gas equation here:

brainly.com/question/19251972

#SPJ1

6 0
2 years ago
How many grams of aluminum oxide will you need to start with in order to make 6500 g of aluminum hydroxide?
kherson [118]

Answer:

Explanation:

2Al(s) + 3 2 O2(g) → Al2O3(s) And given the stoichiometry ...and EXCESS dioxygen gas...we would get 6.25⋅ mol of alumina. the which represents a mass... ...6.25 ⋅ mol ×101.96 ⋅ g ⋅ mol−1 molar mass of alumina ≡ 637.25 ⋅ g.

3 0
2 years ago
Read 2 more answers
1) According to the Bronsted-Lowry theory, what does H3O+ act as in the
Brrunno [24]

Answer:

C) Conjugate Acid

Explanation:

H3O is the conjugate acid of H2O and X is the conjugate base of HX. The reaction going forward is the reaction of an acid and a base.

4 0
3 years ago
Other questions:
  • At a certain temperature this reaction follows first-order Kinetics with a rate constant of 0.0660
    13·1 answer
  • A sample of carbon 12 has a mass. Of 6.00g how many atoms of carbon 12 are in the sample
    6·1 answer
  • Which term describes this molecular shape?
    12·2 answers
  • To produce 8 molecules of ammonia, NH3, we would need ___________ molecules of hydrogen, H2 and ____________ molecules of nitrog
    10·1 answer
  • Group 13 elements tend to have what charge
    9·2 answers
  • Which of the following best describes a binary compound?
    5·1 answer
  • Can you help me with this?
    10·1 answer
  • Compare the orbital notations of the substances investigated in this experiment with their attraction to the magnet. What unique
    9·1 answer
  • How to solve x² in differential​
    6·1 answer
  • If you cant see the image please let me know. last time i put an image someone said its blurry.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!