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
LenKa [72]
3 years ago
5

PLEASE HELP Me with this Quickly

Chemistry
1 answer:
iogann1982 [59]3 years ago
8 0

Answer:

4( atoms of the same element always have different atomic weights)

Explanation:

the number of protons in the atoms of the same type can be different especially in isotopes

You might be interested in
A strong acid can also be described as a very weak .
faltersainse [42]
I guess is weak alkaline. when the substance is more acidic, there will be less alkalinity
4 0
3 years ago
Write a balanced chemical equation for the complete combustion of C3H7BO3, a gasoline additive. The products of combustion are C
nexus9112 [7]

Answer:

2C₃H₇BO₃ + 8O₂ → 6CO₂ + 7H₂O + B₂O₃.

Explanation:

  • For balancing a chemical equation, we should apply the law of conversation of mass. It states that the no. of atoms in the reactants side is equal to that of the products side.

So, the balanced equation:

<em>2C₃H₇BO₃ + 8O₂ → 6CO₂ + 7H₂O + B₂O₃.</em>

It is clear that 2.0 moles of C₃H₇BO₃ is completely burned in 8 m oles of oxygen and produce 6 moles of CO₂, 7 moles of H₂O and 1 mole of B₂O₃.

7 0
3 years ago
4. Which of the following NOT TRUE about real gas
Semenov [28]

Answer:

The answer is D.

Explanation:

Intermolecular force are negligible

When the distance between molecules decrease,

the attraction or repulsion become greater

7 0
2 years ago
In right triangle EFG, mE = 25. In right triangle HJK, mH = 25. Which similarity postulate or theorem proves that EFG and HJK ar
Rus_ich [418]
The angle- angle similarity postulate. It states that if a triangle has two equal corresponding angles the angles are similar.
6 0
3 years ago
Read 2 more answers
How many molecules are in 777.7 grams of water?
Alisiya [41]

to have the closest number rounded up

7 0
3 years ago
Other questions:
  • A characteristic feature of any form of chromatography is the ________.a. calculation of an Rf value for the molecules separated
    13·1 answer
  • Low air pressure can cause
    8·1 answer
  • How is stoichiometry used to calculate the amount of product from amount of reactant?
    8·2 answers
  • In atoms, electrons surround the nucleus in?
    7·2 answers
  • What influences the movement of ions and molecules?
    13·2 answers
  • What is the mass, in grams, of 7.27 x 10^8 Ne atoms?<br> I need answers it is almost due!!
    9·2 answers
  • In what ways is the reaction between calcium and water different than the reactions between sodium and water, and potassium and
    7·1 answer
  • Why is light a wave?​
    13·1 answer
  • Classer les particules suivantes par ordre chronologique d’apparition dans l’Univers: atome d’hydrogène–proton–noyau d’hydrogène
    11·1 answer
  • What two elements are present in the compounds in the last two rows of table 4​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!