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
Ostrovityanka [42]
3 years ago
8

Living things are classified into groups based on similar characteristics which of the following best represents how plants are

classified
A. vertebrates and invertebrates
B.Vascular and nonvascular
C. Angiosperms and Gymnosperms
D.Producer, Consumer, and Decomposer
Chemistry
1 answer:
Inessa05 [86]3 years ago
8 0

Pretty sure the answer is D.

You might be interested in
What is the atomic mass, in amu, of this atom?
hjlf

Answer:precisely 1/12 the mass of an atom of carbon-12.

Explanation:The carbon-12 (C-12) atom has six protons and six neutrons in its nucleus. In imprecise terms, one AMU is the average of the proton rest mass and the neutron rest mass.

7 0
3 years ago
Plllllllllzzzzzzzzzzz heeeeeelllllppppppppp meeeeeeeeeeee madam/sir plzzzzzzz​
Ber [7]

Answer:

put it a 3 d model shape

Explanation:

4 0
3 years ago
If the mass percentage composition of a compound is 72.1% Mn and 27.9% O, its empirical formula is
mojhsa [17]

Answer:

MnO- Manganese Oxide

Explanation:

Empirical formula: This is the formula that shows the ratio of elements

present in a  

compound.

   

How to determine Empirical formula

1. First arrange the symbols of the elements present in the compound

alphabetically to  determine the real empirical formula. Although, there

are exceptions to this rule, E.g H2So4

2. Divide the percentage composition by the mass number.

3. Then divide through by the smallest number.

4. The resulting answer is the ratio attached to the elements present in

a compound.

           

                                                                              Mn                         O    

                         

% composition                                                      72.1                      27.9    

                       

Divide by mass number                                       54.94                     16  

                                 

                                                                               1.31                      1.74    

                       

Divide by the smallest number                         1.31                      1.31                          

                                                                               1                    1.3

                                                 

The resulting ratio is 1:1

 

Hence the Empirical formula is MnO, Manganese oxide

8 0
4 years ago
C= 51.89% H= 9.82% Br=38.29%
maks197457 [2]

Answer:

a

Explanation:

3 0
3 years ago
What mass of oxygen is needed to burn 54.0 grams of butane c4h10
Jobisdone [24]

The moles of oxygen required to burn Butane is 6 moles.

<h3>What is a Combustion Reaction?</h3>

A reaction in which fuel gets oxidised by an oxidising agent producing a large amount of heat is called a combustion reaction.

In this question

Butane is burnt with oxygen

Molar mass of C₄H₁₀ = (12.0×4 + 1.0×10) g/mol = 58.0 g/mol

Molar mass of O₂ = 16.0×2 g/mol = 32.0 g/mol

Balanced equation for the reaction:

2C₄H₁₀ + 13O₂ → 8CO₂ + 10H₂O

Mole ratio C₄H₁₀ : O₂ = 2 : 13

The given mass = 54grams

moles = 54/58 = 0.93 moles

The mole of oxygen required =

0.93/ x = 2/13

0.93*13/2 = x

x = 6.045 moles

Therefore 6 moles of oxygen are required to burn Butane.

To know more about Combustion Reaction

brainly.com/question/12172040

#SPJ1

6 0
2 years ago
Other questions:
  • A solution of 10 M NaOH was used to prepare 2 L of 0.5 M NaOH. How many mL of the original NaOH solution are needed?
    15·1 answer
  • Calculate the frequency (in Hertz) of light with a wavelength of 420 nm. What color is the light?
    12·1 answer
  • How does a lithium cation compare to a lithium atom?
    14·1 answer
  • Iron reacts with oxygen to produce iron oxide (rust). This reaction is represented in an equation as 4Fe + xO2 → 2Fe2O3. Identif
    7·2 answers
  • Sunidhi made a study chart about changes in states of matter. Which headings best complete the chart? X: Solid Directly to Liqui
    11·1 answer
  • What volume of a 0.0606 M solution of strontium bromide is needed to obtain 0.340 mol of the compound?
    15·1 answer
  • How many molecules of CF₂Cl₂ are in 45.7 grams of CF₂Cl₂? (Show work)
    10·1 answer
  • To make the five standard solutions you will need for the Beer's Law Plot, you will first create a stock solution from ( NH 4 )
    6·1 answer
  • Dissolving potassium chlorate (KClO3) is even more endothermic than potassium chloride.
    14·1 answer
  • Draw the structure of the starting material needed to make 2‑methylhept‑3‑yne (or 2‑methyl‑3‑heptyne) using sodium amide in liqu
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!