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
noname [10]
3 years ago
11

Help asap plz!!

Chemistry
1 answer:
musickatia [10]3 years ago
3 0

Answer:

Large change in temperature makes heat flow fast.

Explanation:

You might be interested in
How many grams of water will form if 10.54 g H2 react with 95.10 g O2?
sergeinik [125]

Answer:

94.0

Explanation:

2020 edge

7 0
3 years ago
The distance between two points on a map is 0.04 kilometers what is the distance in meters
ra1l [238]
The answer is 400 meters
8 0
3 years ago
What is the product of the following chemical equation?
g100num [7]

Answer: carbon dioxide and water

Explanation:

C3H8 + 5O2 —> 3CO2 + 4H2O

6 0
3 years ago
The masses of carbon and hydrogen in samples of four pure hydrocarbons are given above. The hydrocarbon in which sample has the
enot [183]

Answer:

Sample B

Explanation:

In this case, we need to determine the empirical formula for each sample. The one that match the formula of the propene would be the sample.

Let's do Sample A:

C: 60 g;       H: 12 g

1. Calculate moles:

We need the atomic weights of carbon (12 g/mol) and hydrogen (1 g/mol):

C: 60 / 12 = 5

H: 12 / 1 = 12

2. Determine number of atoms in the formula

In this case, we just divide the lowest moles obtained in the previous part, by all the moles:

C: 5 / 5 = 1

H: 12 / 5 = 2.4    or rounded to two

3. Write the empirical formula:

Now, the prior results, represent the number of atoms in the empirical formula for each element, so, we put them with the symbol and the atoms as subscripted:

C₁H₂ = CH₂

Therefore, sample A is not the same as propene.

Sample B:

C: 72 g    H: 12 g

Following the same steps, let's determine the empirical formula for this sample

C: 72 / 12 = 6 ---> 6 / 6 = 1

H: 12 / 1 = 12 ----> 12 / 6 = 2

EF: CH₂

Sample C:

C: 84 g    H: 10 g

C: 84 / 12 = 7 ----> 7 / 7 = 1

H: 10 / 1 = 10    ----> 10 / 7 = 1.4 or just 1

EF: CH

Sample D

C: 90 g      H: 10 g

C: 90 / 12 = 7.5     -----> 7.5 / 7.5 = 1

H: 10 / 1 = 10  -------> 10 / 7.5 = 1.33 or just 1

EF: CH

Neither compound has the same empirical formula as C3H6, but C3H6 is a molecular formula, so, if we just simplify the formula we have:

C3H6  -----> CH₂

Therefore, sample B is the one that match completely. Sample B would be the one.

Hope this helps

8 0
3 years ago
Choose all the answers that apply.
Vitek1552 [10]

Answer: They Have Waxy Leaves And Stems

Explanation:

:)

7 0
3 years ago
Read 2 more answers
Other questions:
  • Write an equation that shows the formation of a lithium ion from a neutral lithium atom
    14·2 answers
  • I need help with 1,2,3, and 4
    9·1 answer
  • How many grams of silver chloride are produced from 5.0 g of silver nitrate reacting with an excess of barium chloride?
    11·1 answer
  • Which substance is an Arrhenius base?<br> (1) CH3OH (3) LiOH<br> (2) CH3Cl (4) LiCl
    13·1 answer
  • Under which conditions of temperature and pressure does oxygen gas behave least like an ideal gas?
    15·2 answers
  • Round this number to two significant figures. 634
    12·2 answers
  • A beaker is filled to the 500 mL mark with alcohol. What increase in volume (in mL) does the beaker contain when the temperature
    13·1 answer
  • Atoms and molecules are constantly in motion. The more energy the atom or molecule contains, the faster they move about. In whic
    5·1 answer
  • If a compound has two atoms of aluminum (AI) and three atoms of oxygen (O) what would its chemical formula look like?
    5·1 answer
  • A compound has the name iodine pentafluoride. What kind of bond is present between the atoms? A. O Metallic B Covalent C. Hydrog
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!