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
kotykmax [81]
3 years ago
7

50 points plz help

Chemistry
1 answer:
EleoNora [17]3 years ago
7 0

Answer: b

Explanation:

You might be interested in
Use chemical formulas to write the equation for the reaction between carbon and oxygen
Mandarinka [93]
C=Carbon
O=Oxygen
Oxygen is a diatomic molecule, so the subscript two needs to be used after the O in the formula.
C+O2->CO2
Hope this helps!
7 0
3 years ago
This is in since class
Julli [10]

1 - causes the molecules of the object or surface it strikes to vibrate faster, increasing its temperature.

2-carbon dioxide, methane, nitrous oxide, and water vapor it has to be one of these 3

3-The greenhouse effect is the way in which heat is trapped close to Earth's surface by “greenhouse gases.”

4- because of the fossil fuels that people are burning for energy.

5- due to human activities

7 0
2 years ago
What is the formula of a compound formed between iodine (I) and calcium (Ca)?
Nadya [2.5K]
Calcium iodide (chemical formula <span>CaI2</span>)
7 0
3 years ago
Read 2 more answers
Cortisol (molecular weight 362.47 g/mole), one of the major steroid hormones, is a key factor in the synthesis of protein. Its p
frez [133]

The molecular formula of cortisol is C₂₁H₃₀O₅

Explanation:

To find the cortisol formula we use the following algorithm:

divide each element percentage by the atomic weight of the element

for carbon 69.9 / 12 = 5.83

for hydrogen 8.34 / 1 = 8.34

for oxygen 22.2 / 16 = 1.41

now the we divide the obtained numbers by the lowest one, which is 1.41

for carbon 5.83/ 1.41 ≈ 4

for hydrogen 8.34 / 1.41 ≈ 6

for oxygen 1.41 / 1.41 = 1

the empirical formula of cortisol is C₄H₆O

the molecular formula of cortisol is (C₄H₆O)ₓ

70x = 362.47

x = 362.47 / 70

x ≈ 5.2

carbon ≈ 5.2 × 4 ≈ 21

hydrogen = 5 × 6 = 30

oxygen = 5 × 1 = 5

The molecular formula of cortisol is C₂₁H₃₀O₅

Learn more about:

determining the molecular formula of a compound

brainly.com/question/13764849

#learnwithBrainly

5 0
3 years ago
According to the first law of thermodynamics, what quantity is conserved?.
erik [133]

Answer:

energy

Explanation:

The First Law of Thermodynamics (Conservation) states that energy is conserved, it cannot be created nor destroyed.

5 0
2 years ago
Other questions:
  • 24 POINTS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    14·2 answers
  • Describe a way to separate a mixture of sand and salt .
    11·1 answer
  • More than 70% of all legislation passed in Washington, DC addresses issues related to science; most of these issues pertain chem
    9·1 answer
  • Which system of measurement does the U.S. use?????
    6·1 answer
  • What is the boiling point elevation and the boiling point of a 1.50 m solution of NaCl
    14·1 answer
  • What is the oxidation state of cr in CrPO4 and Cr3(PO4)2?
    7·2 answers
  • Please answer ASAP 10 points ​
    8·2 answers
  • What are the most common elements in the canyon
    5·1 answer
  • Calculate the volune, in liters, of 4 mol H2S at 60 degrees celsius and 200 KPa? Show your work 40 pts
    11·1 answer
  • How is atom and molecules related to our sense of smell?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!