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
frozen [14]
3 years ago
11

7. Calculate moles of H2 needed to form 2.25 moles HCl in the reaction H2 + Cl2==>2HCl

Chemistry
1 answer:
mart [117]3 years ago
8 0

Answer:

1.125 moles

Explanation:

2mole of HCl produced 1mole of H2

2.25moles of HCl will produce x moles

cross multiply

2x=™1×2.25

x= 2.25÷2

x=1.125mole

You might be interested in
I need help on science<br>I have a 89 on my report card for science and I need to get it to a 98
Hunter-Best [27]
Sorry but I only know a few
17- decomposers
18- decomposition
21- 10% is lost so 90%
8 0
3 years ago
Chemistry question.
grandymaker [24]
Hello!

Percentage error = (true value - measured value)/true value x 100%

Percentage error = (27.7-27.0)/27.7 x100% = 25.3%
8 0
3 years ago
How much energy does an X-ray with an 8 nm (8 x 10-9 m) wavelength have?
Vlada [557]

Answer: 2.48×10^-17 J

Explanation:

Given the following :

Wavelength = 8nm (8 x 10^-9 m)

Energy(e) of X-ray =?

Energy=[speed of light(c) × planck's constant (h)] ÷ wavelength

Speed of light = 3×10^8m/s

Planck's constant = 6.626×10^-34 Js

Wavelength = 8 x 10^-9 m

Energy = [(3×10^8) * (6.626×10^-34)] / 8 x 10^-9

Energy = [19.878×10^(8-34)] / 8 x 10^-9

Energy = 2.48475 × 10^(-26+9)

Energy = 2.48×10^-17 J

8 0
3 years ago
What is the name of this compound? H single bonded to N with a pair of electron dots above and a single bond to H below, single
dybincka [34]

Answer:

Ethanamine (also known as ethylamine)

Explanation:

The compound that is requested by the question is ethanamine. Its trivial name is ethylamine.

It is a compound that contained the ethyl moiety (CH3CH2-) as well as the amine moiety (-NH2).

Ethanamine has a structure that can easily be determined by the statements in the question.

The structure of ethanamine is shown in the image attached.

4 0
3 years ago
A high concentration of water has ____________ dissolved particles than a low water concentration.
N76 [4]

A high concentration of water has <u>fewer</u> dissolved particles than a low water concentration.

Most cell membranes are not as easily permeable to many dissolved compounds as water is. There is a quick and constant flow of water. From one area with less dissolved matter to another with more, water transports NET. Or, if you want, from an area with a lot of water to one with little water. The terms isotonic, hypotonic, and hypertonic refer to the concentration of dissolved material. In a medium, such as the extracellular fluid, every distinct material has a concentration gradient that is unique from the gradients of other substances. Every substance will diffuse in line with that gradient as well.

Learn more about Concentration here-

brainly.com/question/10725862

#SPJ4

3 0
1 year ago
Other questions:
  • What does viscosity describe?
    7·2 answers
  • velocity and time information for a leftward moving car are shown. t = 4.0s v= 4.0 m/s. t = 0.0 v=20.0 m/s. what is the magnitud
    8·1 answer
  • suppose that recording station N located 200 km north of the epicenter of an earthquake, and recording station S is located 100
    5·1 answer
  • Based on your energy level calculations, predict the photon energies that would be emitted by transitions between the hydrogen e
    7·1 answer
  • HELP NOW BRAINLIST AND 15 POINTS!!!!!! PLEASE HELPPP​
    12·2 answers
  • In a first–order reaction (A → B and rate = k [A]), tripling the concentration of A will have what effect on the reaction rate?
    13·1 answer
  • How are transition metals named in metal compounds?
    12·1 answer
  • When the Florida summer brings hot temperatures, what seasonal changes can be seen in plants?
    8·1 answer
  • Two substances (A and B) are placed at each end of a glass tube. The vapors of the substances form a solid that is closer to sub
    6·1 answer
  • Very urgent
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!