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
inna [77]
3 years ago
8

HELPPPP PLEASEEE

Chemistry
1 answer:
Igoryamba3 years ago
6 0
Atomic mass is the answer!!
Explanation: An elements atomic number won’t be able to change
You might be interested in
Substances that make up a mixture __________ their own properties once they are combined to form a mixture. Please help. I need
Stels [109]
I believe the answer to this is;
Substances that make up a mixture RETAIN their own properties once  they are combined to form a mixture. 
    I believe the answer is RETAIN because the combination in question is a MIXTURE. A mixture is a combination of various substances. In the case of mixtures, all the substances retain their own properties. That is; they remain the way they are and do not change. An example of a mixture is air. And to prove that air is a mixture;
The components of air retain their individual properties.
The components of air cannot be represented by a chemical formula
When the components of air combine, they do not show any form of chemical change, like heat release, change in pressure.....
  Hope i helped, have a nice day.
8 0
3 years ago
When 500.0 g of water is decomposed by electrolysis and the yield of hydrogen is only 75.3%, how much hydrogen chloride can be m
Evgen [1.6K]

The amount of hydrogen chloride that can be made is 1064 g

Why?

The two reactions are:

2H₂O → 2H₂ + O₂ 75.3 % yield

H₂ + Cl₂ → 2HCl 69.8% yield

We have to apply a big conversion factor to go from grams of water (The limiting reactant), to grams of HCl, the final product. We have to be very careful with the coefficients and percentage yields!

500.0gH_2O*\frac{1moleH_2O}{18.01 gH_2O}*\frac{2 moles H_2}{2 moles H_2O}*\frac{2.015g H_2}{1 mole H_2}*\frac{75.3 actual g}{100 theoretical g}=42.12 g H_2

42.12H_2*\frac{1 mole H_2}{2.015gH_2}*\frac{2 moles HCl}{1 mole H_2}*\frac{36.46g}{1 mole HCl}*\frac{69.8 actualg}{100 theoreticalg} =1064gHCl

Have a nice day!

#LearnwithBrainly

7 0
4 years ago
Burning wool smells like burning hair while burning cotton smells like burning paper. why?
julsineya [31]
Cotton is a plant product and paper is also made from plants. So when cotton is burnt, it smells like burning paper. While wool and hair both are from animals, hence on burning they smell similar.
8 0
4 years ago
What data can be used to make a model of food?
drek231 [11]

Answer: the density of the object / the mass it takes to stand up.

Explanation:

7 0
3 years ago
Someone please help will mark as brainliest
wariber [46]

1. solute is the substance that is being dissolve,while solvent is dissolving medium

2.saturated is solution that contain maximum amount of solut that capable of being dissolve and supersaturated is solution that contain less amount or medium of solut that capable being dissolve : example vinger

3. is a number placed in front of a chemical symbol or formula. It shows how many atoms or molecules of the substance are involved in the reaction. For example, two molecules of hydrogen would be written as 2 H2, and two molecules of water would be written 2 H2O . yes it's can be change only in caseWhen you balance an equation you can only change the coefficients

5 0
3 years ago
Other questions:
  • Based on the products obtained, rank the functional groups (acetamido, amino, and methoxy) in order of increasing ability to act
    11·1 answer
  • How is sound energy produced? A. by vibrating objects B. by stationary objects C. by temperature differences D. by objects being
    10·2 answers
  • Which of the following is true regarding atomic radius?
    7·1 answer
  • What is the appearance of the signal corresponding to the CH₂ protons in the 1H NMR spectrum of ethyl methyl ether, CH₃CH₂OCH₃?
    10·1 answer
  • How does friction affect energy transformation
    13·2 answers
  • Help please!! I’ll mark you brainliest!!
    5·1 answer
  • Perform the following operation and express the answer in scientific notation. 7.0x10^3 x 1.1x10^7​
    5·1 answer
  • Which elements are found in ammonium hydroxide? NH4OH
    12·1 answer
  • How to calculate atomic mass of sodium ?(in process)​
    12·1 answer
  • Perform the followingmathematical operation, andreport the answer to thecorrect number of significantfigures.3.96 x 0.1159 = [?]
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!