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
inysia [295]
2 years ago
12

3. A girl ran 105 metres in 15 seconds. What was her speed

Chemistry
1 answer:
sweet [91]2 years ago
5 0

Answer:

7 meters per second was her speed

You might be interested in
Antique paintings will deteriorate more rapidly in a humid environment. Art museums will combat this by placing a desiccant into
stira [4]

233.1g

Explanation:

Given:

Formula units of FeCl₃ = 8.65 x 10²³ formula units

Unknown:

Mass of the FeCl₃ = ?

Solution:

The formula unit is the same as the amount of subatomic particles in an atom.

  1 mole of a substance = 6.02 x 10²³ formula units

 For  8.65 x 10²³ formula units; the number of moles;

  Number of moles = \frac{8.65 x 10 ^{23} }{6.02 x 10^{23} } = 1.44moles

Now to find the mass of  FeCl₃;

   Mass of  FeCl₃ = 1.44 x 162.2 = 233.1g

learn more:

Number of moles brainly.com/question/1841136

#learnwithBrainly

3 0
2 years ago
Flourine is more reactive than chlorine . why ? with short reason. ​
Talja [164]

Answer:

Electronegativity is probably the biggest thing that plays into reactivity. Therefore, since fluorine has a higher electronegativity than chlorine, fluorine is more reactive.

Explanation:

I got it right

7 0
3 years ago
Someone please answer this in like 40 minutes<br> Before it’s due. Explain the answer too
olga2289 [7]

Answer:

kkkwkisa

Explanation:

wulaoaiq8qiIq8qiaik

5 0
2 years ago
Which of the following substances are not homogeneous mixtures?
Tanya [424]

Answer: it’s B

Explanation:

7 0
3 years ago
Write the empirical formula for 3.57 g of N and 4.08 g of O. Express answer as a chemical formula.
Ad libitum [116K]
Its 4.08 i hope hopefully its helpful
7 0
3 years ago
Other questions:
  • How do you find concentration from absorbance mg and ml?
    5·1 answer
  • the element carbon has two common isotopes: C-12 (12 U) AND C-13 (13.003355 U). IF THE AVERAGE ATOMIC MASS OF CARBON IS 12.0107
    13·1 answer
  • The combustion of a 0.4255 g sample of a compound containing carbon, hydrogen, oxygen and bromine produces 0.4961 g CO2 and 0.17
    13·1 answer
  • How much energy is required to vaporize 48.7 g of dichloromethane (CH2Cl2) at its boiling point, if its ΔHvap is 31.6 kJ/mol?
    10·1 answer
  • Mendel discovered that:
    15·1 answer
  • Which statement best explains why a carbon atom can bond easily with other atoms?
    11·2 answers
  • A sample of a gas is placed inside a cylinder that is a fixed size. The cylinder is heated as additional gas is added to it. Wha
    8·2 answers
  • Electron configuration for iron?
    8·1 answer
  • When a calcium atom forms an ion, it loses two electrons. what is the eletrical charge ofbthe calcium ion?
    9·2 answers
  • A compound is made up of at least
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!