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
Evgesh-ka [11]
2 years ago
6

Can someone answer these two separate questions pls ill give brainliest

Chemistry
1 answer:
Tems11 [23]2 years ago
8 0

The average speed

3. 89.7 m/min

4. 6.13 ft/min

<h3>Further explanation</h3>

Given

3. 1076 m in 12 min

4. 92 ft in 15 min

Required

average speed

Solution

3.

<em>I am solving for</em> : the average speed

<em>The equation I need is :</em>

\tt avg~speed=\dfrac{total~distance}{total~time}

<em>This is how I set the equation</em>

<em />\tt avg~speed=\dfrac{1076~m}{12~min}<em />

<em>This is my answer</em> = 89.7 m/min

4.

<em>I am solving for</em> : the average speed

<em>The equation I need is :</em>

\tt avg~speed=\dfrac{total~distance}{total~time}

<em>This is how I set the equation</em>

<em />\tt avg~speed=\dfrac{92~ft}{15~min}<em />

<em>This is my answer</em> = 6.13 ft/min

You might be interested in
Use the following information to determine the empirical formula if a compound is found to have 18.7% Li, 16.3% C, and 65.5% O A
Elina [12.6K]

Answer:

The empirical formula is Li2CO3

Explanation:

Step 1: Data given

Suppose the mass of the compound = 100 grams

The compound contains :

18.7% Li = 18.7 grams of Li

16.3 % C = 16.3 grams of C

65.0% O = 65.0 grams of O

Total = 100%

Molar mass of Li = 6.94 g/mol

Molar mass of C = 12.01 g/mol

Molar mass of O = 16 g/mol

Step 2: Calculate moles

Moles = Mass / molar mass

Moles Li = 18.7 grams / 6.94 g/mol = 2.65 moles

Moles C = 16.3 grams / 12.01 = 1.36 moles

Moles O = 65.0 grams / 16.0 g/mol = 4.06 moles

Step 3: Calculate the mol ratio

We divide by the smallest number of moles

Li: 2.65/1.36 ≈ 2

C: 1.36/1.36 = 1

O: 4.06/1.36 ≈ 3

The empirical formula is Li2CO3

3 0
3 years ago
Is it possible for the overall charge of an ionic compound to be -1.<br> true<br> false
AnnZ [28]

Answer:

The correct answer is False

8 0
2 years ago
PLEASE HELP ASAP I need help with this
dangina [55]

Answer:

sorry pic wont work

Explanation:

i can help if you get the pic to work

4 0
2 years ago
I need help asap please help me
Nata [24]

Answer:

it says the answer is variation

6 0
2 years ago
Read 2 more answers
A student dilutes 50.0 mL of a 0.10 mol/L to 0.010 mol/L. Which statement is true?​
VLD [36.1K]
The total amount of solute decreases.
6 0
3 years ago
Other questions:
  • in 1965, the mean price of a new car was $2,650 and the standard deviation was $1,000. In 2011, the mean was $30,500 and the sta
    11·1 answer
  • What aldol product is formed when two molecules of butanal react together in the presence of base?
    6·1 answer
  • What is the chief chemical property of ethers?
    10·1 answer
  • Tornadoes can be identified and tracked using advanced instruments that can detect small changes in wind velocity and air pressu
    14·1 answer
  • When might a plot of ln[a] vs time not yield a straight line?
    7·1 answer
  • How many grams of water are needed to react with 44.9 grams of li2o?
    10·1 answer
  • The __________ is the part of the solution that is in the greater quantity, and the __________ is the smaller portion of the sol
    9·2 answers
  • Jana is modeling mutations using the word "FRIEND."
    14·1 answer
  • Which of these takes place when a chemical change occurs?
    10·1 answer
  • It will help to determine the motion,direction and energy in a work of art
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!