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
andrew11 [14]
3 years ago
13

Help in Chem plz!!!!

Chemistry
2 answers:
sergij07 [2.7K]3 years ago
4 0
The answer i think is 5.0
Svet_ta [14]3 years ago
4 0
5.0 is your answer I think
You might be interested in
What mass of oxygen is needed to combust and produced 6.4 moles of carbon dioxide gas?
N76 [4]
You have already gotten the balanced equation. And the ratio of mol number of reactants and production is the ratio of coefficient. So there is 6.4/8*11=8.8 mol oxygen needed. The mass is 8.8*32=281.6 g.
6 0
3 years ago
Hi, May I have Chem help please? Please Keep the answer as simple as possible.
lesya [120]

Explanation:

a positively charged nucleus is surrounded by mostly empty space.

4 0
3 years ago
The density of copper is 8.92 g/mL. The mass of a piece of copper that has a volume of 10.3 mL is
m_a_m_a [10]

Answer:

The answer is

<h2>91.9 g</h2>

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

<h3>mass = Density × volume</h3>

From the question

volume of copper = 10.3 mL

density = 8.92 g/mL

The mass is

mass = 8.92 × 10.3 = 91.876

We have the final answer as

<h3>91.9 g</h3>

Hope this helps you

8 0
4 years ago
What is a serial dilution?
lord [1]

A serial dilution is the stepwise dilution of a substance in solution. Usually the dilution factor at each step is constant, resulting in a geometric progression of the concentration in a logarithmic fashion.

4 0
3 years ago
2C2H6 + 8O2 = 4CO2 + 6H2O
Neporo4naja [7]

Answer:

4 moles of carbon

6 moles of water

Explanation:

I think as there no data given u have to is the numbers infront of the equation e.g 4CO2 so 4.

hope this helps :)

4 0
3 years ago
Other questions:
  • What kind of chemist studies chemical reactions involved in photosynthesis the process that plants use to make food?
    12·1 answer
  • 2. At STP, a sample of gas occupies 24.5 mL. Calculate the volume of this gas at a
    8·1 answer
  • What happens immediately before a volcano erupts?
    12·1 answer
  • Which statement best describes the formula equation Cl2(g) + 2KBr(aq) mc014-1.jpg 2KCl(aq)+ Br2(l)?
    11·2 answers
  • On veut comparer l’efficacité de la configuration batch avec celle du continu CSTR pour la production de 10^3 tonnes de levures
    10·1 answer
  • How many significant figures does 4,982cm have
    6·1 answer
  • What is the link between the electronic structure of ions and the electronic structure of Noble gases
    12·1 answer
  • What type of reaction is this?<br> A. double replacemment<br> B. Single replacement
    14·1 answer
  • HELP DUE IN 5MIN WILL MARK BRAILIEST
    13·1 answer
  • Actual Value = -273 Experimental Value = -274 calculate the percent error of your value for absolute zero (in Celsius) Percent e
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!