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
hichkok12 [17]
3 years ago
13

1. Which of the following best describes the relationship

Chemistry
1 answer:
Ipatiy [6.2K]3 years ago
8 0
D there is one kind of cell of which all living things are made
You might be interested in
David's body breaks down the sandwich into small enough molecules that can be absorbed through his intestinal lining and then in
viva [34]

break down food into smaller molecules the body can use; absorb molecules into blood and carry them throughout the body; eliminate wastes from the body

4 0
3 years ago
Read 2 more answers
"Calculate the number of millimoles in 500 mg of each of the following amino acids: alanine (MW = 89), leucine (131), tryptophan
Cloud [144]

Answer:

- Alanine =  5.61 mmoles

- Leucine = 3.81 mmoles

- Tryptophan = 2.45 mmoles

- Cysteine = 4.13 mmoles

- Glutamic acid = 3.40 mmoles

Explanation:

Mass / Molar mass = Moles

Milimoles = Mol . 1000

500 mg / 1000 = 0.5 g

- Alanine = 0.5 g / 89 g/m → 5.61x10⁻³ moles  . 1000 = 5.61mmoles

- Leucine = 0.5 g / 131 g/m → 3.81 x10⁻³ moles  . 1000 = 3.81 mmoles

- Tryptophan = 0.5 g / 204 g/m →  2.45x10⁻³ moles . 1000 = 2.45 mmoles

- Cysteine = 0.5 g / 121 g/m → 4.13x10⁻³ moles . 1000 = 4.13 mmoles

- Glutamic acid = 0.5 g 147 g/m → 3.40x10⁻³ moles . 1000 =  3.4 mmoles

5 0
3 years ago
If 25.0 g NO are produced, how many grams of nitrogen gas are used?
mr Goodwill [35]

Using the stoichiometry of the reaction and the information provided in the question, the mass of N2 used is 11.62 g.

<h3>Chemical reaction</h3>

The term chemical reaction refers to the combiantion of two or substances to yiled one or more products. The reaction equation in this case is N2 + O2 --->2NO.

Now;

Number of moles of NO = 25g/30 g/mol = 0.83 moles

1 mole of N2 yields 2 moles of NO

x moles of N2 yileds 0.83 moles of NO

x = 0.415 moles

Mass of N2 = 0.415 moles * 28 g/mol = 11.62 g

Learn more about stoichiometry:

brainly.com/question/12166462

8 0
2 years ago
In the chemical formula H2O , which description explains what the 2 represents?
alukav5142 [94]

the number of hydrogen atoms

8 0
3 years ago
Read 2 more answers
If I have a 50.0 liter container that holds 45 moles of gas at a
Darina [25.2K]
V= 50. L n=45 mol T= 200°C = 473k P=?

CP)X 50.L)= (45 mol)(0.0821 light_kimol)(473k)


P = 30am or 4000 kPa
5 0
3 years ago
Other questions:
  • The formation of the iron(III) thiocyanate complex ion is an exothermic equilibrium system. For each change to the system, indic
    14·1 answer
  • In the electron cloud model, if you begin at the electron shell closest to the nucleus of an atom and move out, what is the numb
    7·1 answer
  • Which ion is this atom most likely to form?<br> Options:<br> a. Na+<br> b. Na-<br> c. Ne-<br> d. Mg+
    6·2 answers
  • Atoms of elements that are in the same group have the same number of
    8·1 answer
  • what is the percent composition of compound that has a total mass of 63.9 g that contains 51.0 g Cu and 12.9 g O?
    5·1 answer
  • How has the work of chemists affected the environment?
    11·2 answers
  • Alguien me ayuda por favor
    15·1 answer
  • Please help with this science question.
    11·1 answer
  • A student has a balloon with a volume of 2.5 liters that contains 4.0 moles of air. The ballon has a small leak, allowing one mo
    9·1 answer
  • What does an increase in temperature do to the reaction rate?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!