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
harina [27]
3 years ago
7

Vanessa jogged 8 miles in 2 hours. What was her average speed?

Chemistry
2 answers:
sweet [91]3 years ago
5 0

\text{Hey there!}

\text{Vanessa jogged 8 miles in 2 hours. What was her average speed?}

\text{First,, highlight/ underline your key-terms. Then solve it from there!}

\text{Key term  1: \underline{8 miles}}\\\text{Key term 2: \underline{ in 2 hours}}

\text{Now we have to find her average speed. }

\text{Formula: }\dfrac{\text{a}}{\text{b}}

\text{a = 8}\\\text{b = 2}

\dfrac{8}{2}= \text{the answer}\\\\\dfrac{8\div2}{2\div2}=\dfrac{4}{1}= 4\\\\\\\boxed{\boxed{\bf{Answer: 4}}}\checkmark

\text{Good luck on your assignment and enjoy your day!}\\\\\frak{LoveYourselfFirst:)}

rodikova [14]3 years ago
4 0
8miles in 2 hours. Let's find how many she did on average in one hour.

8/2 = 4miles per hour.
You might be interested in
What is the identity of the element, and how many neutrons does it have? An elements most stable ion forms an ionic compound wit
Pani-rosa [81]

Answer:

B. CA, 14

Explanation:

Atoms of elements contain small particles known as electrons, neutrons, and protons. The nucleus of an atom is made up of neutrons and protons which are at the center of the atom. Electrons on the other hand surrounds the nucleus. Electron has negative charge while proton has a positive charge. The number of neutrons is equivalent to the number of protons . In addition, the number of protons is equal to mass number minus the number of electrons.

For the compound XCl_{2}, it can be broken down into X^{2+} and 2Cl^{-}. Its ion has a mass of 34 and 18 electrons which means it has already lost 2 electrons.

Therefore:

For the given element, the number of electrons is 18+2 = 20 electrons.

The number of protons = 34 - 20 = 14.

And the number of neutrons is 14.

Only option B has the correct answer.

6 0
3 years ago
What chemicals need to make liquid bakelite ?
Jet001 [13]
It begins with heating of phenol and formaldehyde in the presence of a catalyst such as hydrochloric acid, zinc chloride, or the base ammonia. This creates a liquid condensation product, referred to as Bakelite A, which is soluble in alcohol, acetone, or additional phenol.
5 0
3 years ago
An object has a negative charge if its atoms what
jonny [76]

Answer:

An object has a negative charge if it's atoms have more electrons. On the other hand if an object had more protons, then it would have a positive charge.

Hope this helps!!

6 0
3 years ago
What coefficient for O2 demonstrates the law of conservation of mass?
olga2289 [7]

Answer:

2

Explanation:

The coefficient for O is 2 and this is an example of a combustion reaction. With the help of the coefficient 2 infront of oxygen, this equation now demonstrates law of conservation of mass.

6 0
3 years ago
In a solution of salt and water which compound is the solute?
ra1l [238]
Solute is what gets dissovled, in this case the salt, and the solVENT is whatever a material is dissolved into, in this case the water.
7 0
3 years ago
Other questions:
  • What is the question tag for Lynne speaks french and German <br>​
    6·2 answers
  • A sample of seawater contains 1.3 g of calcium ions in 3,100 kg of solution. what is the calcium ion concentration of this solut
    5·1 answer
  • Which statement about enzymes is true?
    8·1 answer
  • Each element possesses unique chemical and physical properties. true or false
    14·1 answer
  • The acidic substance in vinegar is acetic acid, HC2H3O2 When 4.00 g of a certain vinegar sample was titrated with 0.200 M NaOH,
    5·1 answer
  • A sample with a molar mass of 34.00 g/mol is found to consist of 5.9783% Hydrogen and 94.0217% oxygen. Find it’s molecular formu
    9·1 answer
  • Hello :) how to do this?
    10·2 answers
  • 3. Which term is defined as "anything that has mass and occuples space"?
    14·2 answers
  • Sunday<br> Monday<br> What<br> The<br> Freak<br> Saturday
    15·1 answer
  • 20. 6th-grade question
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!