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
natta225 [31]
3 years ago
5

When working with a volumetric pipet, one adjusts the liquid level?

Chemistry
1 answer:
Lilit [14]3 years ago
7 0
One adjust the pipet by releasing the air to lower the pressure and equilizing the liquid level
You might be interested in
The base that will NOT combine with 2-deoxyribose to form a nucleic acid is _____.
beks73 [17]

Answer:

Uracil

Explanation:

The base that will NOT combine with 2-deoxyribose to form a nucleic acid is Uracil.

2-deoxyribose is a pentose sugar found in the DNA (Deoxyribonucleic acid). It is devoid of oxygen in its 2' position. The bases found in DNA are Adenine, Guanine, Cytosine and Thymine. Adenine, Guanine, and Cytosine are also found in RNA (Ribonucleic acid). Thymine is not present in RNA, it is only found in DNA. The base found in RNA is Uracil which in turn is not present in DNA. The five carbon sugar present in RNA is ribose which combines with Uracil.

3 0
3 years ago
How are scientific questions answered?
galben [10]

Answer:

D

Explanation:

Scientists always perform tests and observe and measure in the physical world to prove their points or answer their questions.

3 0
3 years ago
2Mg + O2 → 2MgO<br><br> If you are burning 5.8332 g of Mg, how many grams of MgO will this make?
LekaFEV [45]
<h3>Answer:</h3>

9.6724 g MgO

<h3>General Formulas and Concepts:</h3>

<u>Math</u>

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

<u>Chemistry</u>

<u>Stoichiometry</u>

  • Reading a Periodic Table
  • Using Dimensional Analysis
<h3>Explanation:</h3>

<u>Step 1: Define</u>

[RxN - Balanced] 2Mg + O₂ → 2MgO

[Given] 5.8332 g Mg

<u>Step 2: Identify Conversions</u>

[RxN] 2 mol Mg = 2 mol MgO

Molar Mass of Mg - 24.31 g/mol

Molar Mass of O - 16.00 g/mol

Molar Mass of MgO - 24.31 + 16.00 = 40.31 g/mol

<u>Step 3: Stoichiometry</u>

  1. Set up:                              \displaystyle 5.8332 \ g \ Mg(\frac{1 \ mol \ Mg}{24.31 \ g \ Mg})(\frac{2 \ mol \ MgO}{2 \ mol \ Mg})(\frac{40.31 \ g \ MgO}{1 \ mol \ MgO})
  2. Multiply/Divide:                                                                                               \displaystyle 9.67241 \ g \ MgO

<u>Step 4: Check</u>

<em>Follow sig fig rules and round. We are given 5 sig figs.</em>

9.67241 g MgO ≈ 9.6724 g MgO

5 0
3 years ago
Read 2 more answers
Explain, in terms of electrons, why the radius of a calcium ion is smaller than the radius of a calcium atom.
Lilit [14]
Because the calcium ion donates two electrons to achieve the stable state. So the layer of electrons decrease form 4 layers(2,8,8,2) to 3 layers(2,8,8). Thus, the radius of a calcium ion is smaller than a calcium atom.
4 0
3 years ago
The atomic mass unit is presently based on assigning an exact integral mass (in amu) to an isotope of ________.
MAVERICK [17]

The atomic mass unit is presently based on assigning an exact integral mass (in amu) to an isotope of carbon.

<h3>What is the atomic mass?</h3>

The atomic mass is a measurement used in physics and chemistry to denote the average atomic mass of a given element which is measured in the atomic mass unit or amu.

In conclusion, the atomic mass unit is presently based on assigning an exact integral mass (in amu) to an isotope of carbon.

Learn more about the atomic mass here:

brainly.com/question/3187640

#SPJ1

8 0
1 year ago
Other questions:
  • Which is an example of an element? A) salt (NaCl) B) water (H20) C) silver (Ag) D) electron (e-)
    6·2 answers
  • Substances change temperature at different rates because of their
    6·1 answer
  • How many miles of gas are contained in 890.0 mL at 21.0 C and 0.987 atm
    11·1 answer
  • Calculate the number of moles in the 2.00-L volume of air in the lungs of the average person. Note that the air is at 37.0°C (bo
    8·1 answer
  • The small intestine shown below contains lymphatic vessels but no capillaries. Which nutrient will be absorbed by this small int
    11·2 answers
  • This thermogram shows a person using a computer. Complete the sentence to describe the flow of thermal energy between the person
    5·2 answers
  • The standard Gibbs energy of reaction, ÄG°, for the dissociation of phenol is 56.4 kJ mol-1 at 298 K. Calculate the pKa of pheno
    10·1 answer
  • Which statements would be expected to be true for Organesson? Select all that apply.
    11·1 answer
  • 2. Which of the following is/are TRUE regarding net ionic equations?
    9·1 answer
  • Formula for zinc + nitric acid = zinc nitrate
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!