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
olga55 [171]
3 years ago
8

This is agree or disagree I need help ASAP!!

Chemistry
2 answers:
PIT_PIT [208]3 years ago
8 0
All of them are agree :)
soldi70 [24.7K]3 years ago
8 0
I’m pretty sure all of them are agree
You might be interested in
Which generates waves that are capable of traveling through a vacuum?
CaHeK987 [17]

Answer:

Light bulbs

Explanation:

light waves are electromagnetic waves which can travel through a vacuum

7 0
3 years ago
The reusable booster rockets of the U.S. space shuttle use a mixture of aluminum and ammonium perchlorate for fuel. A possible e
Klio2033 [76]

Answer:

0.2298kg of Al

Explanation:

From the equation of reaction

3 moles of Al (81g) is required to mix with 3 moles of NH4ClO4 (352.5g)

Mass of Al required in the fuel mixture for every kilogram (1000g) of NH4ClO4 = 1000×81/352.5 = 229.8g = 229.8/1000 = 0.2298kg

3 0
3 years ago
What negative impact did chemistry have on society through the production and use of chlorofluorocarbons (CFCs)?
andrey2020 [161]
<span>The answer to your question is the 3rd option </span>
6 0
3 years ago
Read 2 more answers
A mixture of A and B is capable of being ignited only if the mole percent of A is 6 %. A mixture containing 9.0 mole% A in B flo
atroni [7]

Explanation:

As it is given that mixture (contains 9 mol % A and 91% B) and it is flowing at a rate of 800 kg/h.

Hence, calculate the molecular weight of the mixture as follows.

             Weight = 0.09 \times 16.04 + 0.91 \times 29

                          = 27.8336 g/mol

And, molar flow rate of air and mixture is calculated as follows.

                    \frac{800}{27.8336}

                     = 28.74 kmol/hr

Now, applying component balance as follows.

                0.09 \times 28.74 + 0 \times F_{B} = 0.06F_{p}

                   F_{p} = 43.11 kmol/hr

                   F_{A} + F_{B} = F_{p}

                          F_{B} = 43.11 - 28.74

                                      = 14.37 kmol/hr

So, mass flow rate of pure (B), is F_{B} = 14.37 \times 29

                                                    = 416.73 kg/hr

According to the product stream, 6 mol% A and 94 mol% B is there.

             Molecular weight of product stream = Mol. weight \times 43.11 kmol/hr

                                  = 0.06 \times 16.04 + 0.94 \times 29

                                  = 28.22 g/mol

Mass of product stream = 1216.67 kg/hr

Hence, mole of O_{2} into the product stream is as follows.

                    0.21 \times 0.94 \times 43.11

                      = 8.5099 kmol/hr \times 329 g/mol

                      = 272.31 kg/hr

Therefore, calculate the mass % of O_{2} into the stream as follows.

                 \frac{272.31}{1216.67} \times 100

                     = 22.38%

Thus, we can conclude that the required flow rate of B is 272.31 kg/hr and the percent by mass of O_{2} in the product gas is 22.38%.

4 0
3 years ago
What is true of enzymes? They only speed up reactions. They speed up or slow down any reaction in a living thing. They act as ca
muminat
They act as catalysts
7 0
3 years ago
Read 2 more answers
Other questions:
  • 2074 Set B Q.No. 1 What mass of nitrogen will be requires
    14·1 answer
  • Aspirin is prepared by reacting salicylic acid with excess ethanoic anhydride. in an experiment, 50.05 g of salicylic acid was c
    11·1 answer
  • Which statement best describes a new hypothesis?
    12·2 answers
  • Rank the following substances in order from most soluble in water to least soluble in water: ethane, C2H6; 2-butanol, C4H9OH; co
    11·1 answer
  • Which property of gases allows them to be stored at high concentrations in a bottle
    6·1 answer
  • How many atoms are in 1.22 moles of magnesium?
    13·2 answers
  • Which two bonds can have similar conductivity?
    10·1 answer
  • How many grams are in 4.80 mol of sodium chloride ( NaCl )?
    14·2 answers
  • Each element on the periodic table has a unique set of properties: Metal vs nonmetal; number of protons; atomic mass; number of
    12·1 answer
  • How to separate crystals from solution​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!