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
Strike441 [17]
3 years ago
10

Nijar did an experiment to test a hypothesis that baking soda is just as effective a cleaner as bleach. He found this not to be

true because more bacteria grew on surfaces cleaned with baking soda. Was there any benefit to Nijar's failed experiment?
A. Yes, all the lab equipment can be used again.
B. No, Najar did not discover which product is the better cleaner.
C. No, Nijar wasted his time testing this hypothesis.
D. Yes, Nijar's findings contributed to scientific knowledge.
Chemistry
1 answer:
kow [346]3 years ago
4 0

Answer:

b no

Explanation:

You might be interested in
Convert 5° C into Fahrenheit.
Lady_Fox [76]

Answer:

5 in celcius is 41 in fahrenheit!

Explanation:

7 0
3 years ago
How many electrons in an atom can have the following quantum
gavmur [86]

The answer for the following question is explained.

<u><em>Therefore the  number of electrons present with the values n = 5, l = 2, m = -2, s = +1/2 is</em></u><u> </u><u><em>one(1).</em></u>

Explanation:

Here;

n represents the principal quantum number

l represents the Azimuthal quantum number

m represents magnetic quantum number

s represents spin quantum number

n = 5,

l = 2,

m = -2,

s = +1/2

Here, it implies 5d orbital.

In the  5d  orbital, 10 electrons.

As the magnetic quantum number is -2, and so it can have 1 electron.

<u><em>Therefore the  number of electrons present with the values n = 5, l = 2, m = -2, s = +1/2 is</em></u><u> </u><u><em>one(1)</em></u>

7 0
3 years ago
Write the Henderson-Hasselbalch equation for a solution of formic acid. Calculate the quotient [HCO2]/[HCO2H] at (a) pH 3.000; (
Elena L [17]

Answer:

a. 0.182

b. 1.009

c. 1.819

Explanation:

Henderson-Hasselbach equation is:

pH = pKa + log [salt / acid]

Let's replace the formula by the given values.

a. 3 = 3.74 + log [salt / acid]

3 - 3.74 = log [salt / acid]

-0.74 = log [salt / acid]

10⁻⁰'⁷⁴ = 0.182

b. 3.744 = 3.74 + log [salt / acid]

3.744 - 3.74 = log [salt / acid]

0.004 = log [salt / acid]

10⁰'⁰⁰⁴ = 1.009

c. 4 = 3.74 + log [salt / acid]

4 - 3.74 = log [salt / acid]

0.26 = log [salt / acid]

10⁰'²⁶ = 1.819

3 0
3 years ago
Where more of hydrogen are contained in 90 g of water or in 80 g of methane
Lynna [10]
Methane.

Water - H2O
Methane - CH4

Methane has 2 more hydrogens than water.
7 0
3 years ago
Which body of water is to the east of Central America? Atlantic Ocean Pacific Ocean Caribbean Sea Arctic Ocean
Marat540 [252]

Answer:

The Atlanic Ocean

Explanation:

4 0
3 years ago
Read 2 more answers
Other questions:
  • Make a list of silver current industrial uses. Try to include the approximate annual demand if possible. Create a table to displ
    15·2 answers
  • Chemical formula for copper gluconate I have 1.4g of Copper gluconate. There is .2g of copper within the copper gluconate. Deter
    13·1 answer
  • The normal boiling point of acetic acid is 118.1°C. If a sample of the acetic acid is at 125.2°C, predict the signs of ΔH, ΔS, a
    12·1 answer
  • Determine the volume ratio of ammonia to nitrogen in the reaction below:
    10·1 answer
  • What is the molarity of a solution prepared by dissolving 10.0g of kno3 in 250 ml of solution
    10·1 answer
  • Water carries helpful nutrients to new areas,
    7·2 answers
  • How much heat is absorbed/released when 20.00 g of NH3(g) (17.0307g/mol) react in the presence of excess O2(g) to produce NO(g)
    14·1 answer
  • 18 gram of sucrose is dissolved in 180 gram of water. Calculate the number of oxygen atoms in the solution.​
    12·1 answer
  • You have just weighed the same beaker twice, obtaining the following measurements. 50.12 g and 50.25 g. The accepted value of th
    15·1 answer
  • Determine the empirical formula for a compound that contains 48.6%C, 8.2% H, and 43.2% S by mass.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!