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
daser333 [38]
4 years ago
12

A runner completes a 400-meter race in 2.5 mins. What is the runner's average speed?

Chemistry
1 answer:
NNADVOKAT [17]4 years ago
8 0
The average speed is 160 meters a minute.
You might be interested in
A rigid cylinder with a movable piston contains 50.0 liters of a gas at 30.0 degree C with a pressure of 1.00 atmosphere. What i
defon
<span>Charles law states that volume of a gas is directly proportional to temperature at constant pressure for a fixed amount of gas. the pressure at given conditions is 1.00 atm and the standard pressure at STP conditions too is 1.00 atm therefore pressure remains constant.
 V1/T1 = V2/T2
the parameters for the first instance are on the left side and parameters at STP are on the right side of the equation.
T1 - temperature in kelvin - 273 + 30.0 </span>°C <span>= 303 K
T2 - standard temperature - 273 K
V1 - volume - 50.0 L
substituting the values in the equation
50.0 L / 303 K = V / 273 K V = 45.0 L
answer is 2) 45.0 L </span>
3 0
3 years ago
Read 2 more answers
HELP PLZZZZZZZZZZ! FILE ATTACHED BELOW! ASAP PLZ!
Ne4ueva [31]
I think it's C yea it's C
6 0
3 years ago
What do I scan to confirm that a book is relevant and valuable as a source
Elden [556K]
It's genre. Look for something either on a final or starting page near the cover, and check to look if it's non fiction, or anything else that could prove it as reliable.
7 0
3 years ago
How can you apply a covalent bond?
Ymorist [56]
Covalent bonding is the sharing of electrons between atoms. This bonding occurs primarily between nonmetals. <span>If atoms have similar electronegativities (the same affinity for electrons), covalent bonds are most likely to occur. Because both atoms have the same affinity for electrons and neither has a tendency to donate them, they share electrons in order to achieve octet configuration and become more stable. </span>
6 0
3 years ago
Which metal ions can be precipitated out of solution as chlorides?a. Ag+, Hg2+, Co2+b. Cu2+, Cd2+, Bi3+ c. Ag+, Hg22+, Pb2+ d. N
Fudgin [204]

Answer:

Explanation:

In the qualitative analysis of metal salts , we see that in group I , metal chlorides are precipitated out . It is so because their metal chlorides are insoluble in water  .

In this group following metal ions are present

Ag+,

Hg₂²⁺

Pb²⁺

8 0
3 years ago
Other questions:
  • Be sure to answer all parts. There are three different dichloroethylenes (molecular formula C2H2Cl2), which we can designate X,
    12·1 answer
  • Give an example of a physical property that is also a characteristic property
    14·1 answer
  • How many moles of Oxygen (O2) gas can be stored in a standard gas cylinder at a temperature of 20.0o C and a pressure of 15200 k
    11·1 answer
  • What is the square root of the atomic number for manganese
    5·1 answer
  • Question 16 (2 points)
    15·1 answer
  • 8. When a 2.5 mol of sugar (C12H22O11) are added to a certain amount of water the boiling point is raised by 1 Celsius degree. I
    9·1 answer
  • Help me out u get points Select the correct answer from each drop-down menu.
    15·2 answers
  • How many moles of sodium chloride are present in 0.5 L of 4 Molar NaCl(aq)
    15·1 answer
  • Examine the fossil. List the parts of the animal that you recognize. What kind of animal do you think this was?
    9·1 answer
  • How many electrons in an atom can have the quantum number n equal to 2 and ml equal to 2?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!