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
k0ka [10]
2 years ago
7

A toy car is pushed 10 meters in 5 seconds. What is the speed of the toy car in meters per second?

Chemistry
1 answer:
dedylja [7]2 years ago
4 0
The answer is C because the toy car goes 2 meters per each second which in the end 2x5=10.
You might be interested in
Briefly describe the action of hardwater with soap​
morpeh [17]

Answer:

The correct answer is - hard water reacts to form the calcium or magnesium salt of the organic acid of the soap.

Explanation:

Soaps are made up of fatty acids or oils by treating with strong alkali and are salts of sodium and potassium. Hard water, on the other hand, has a high concentration of minerals in comparison to soft water. When hard water and soap are mixed together the salts of the minerals like Ca2+ and Mg2+ ions present in hard water react with fatty acids of the soap.

The sodium salts are changed to the salts of calcium and magnesium which are precipitated to an insoluble substance. The insoluble salts of the calcium or magnesium dirt stick on the clothes thus cleaning ability of soap is reduced.

4 0
2 years ago
Generally how does the first ionization energy vary as the atomic number increases going across a period
Vlad1618 [11]

Across a period I.E increases progressively from left to right

Explanation:

The trend of the first ionization energy is such that across a period I.E increases from left to right due to the decreasing  atomic radii caused by the increasing nuclear charge. This not compensated for by successive electronic shells.

  • Ionization energy is a measure of the readiness of an atom to lose an electron.
  • The lower the value, the easier it is for an atom to lose an electron.
  • Elements in group I tend to lose their electrons more readily whereas the halogens hold most tightly to them.
  • The first ionization energy is the energy needed to remove the most loosely bonded electron of an atom in the gaseous phase.

Learn more:

Ionization energy brainly.com/question/6324347

#learnwithBrainly

3 0
3 years ago
How do double replacement reactions relate to Combustion reactions
andriy [413]

Explanation:

A single-replacement reaction replaces one element for another in a compound.

A double-replacement reaction exchanges the cations (or the anions) of two ionic compounds.

A precipitation reaction is a double-replacement reaction in which one product is a solid precipitate.

Solubility rules are used to predict whether some double-replacement reactions will occur.

3 0
2 years ago
Which of the following would result in decreased entropy?
maria [59]
B ice melting hope it helps

4 0
3 years ago
Read 2 more answers
Which equation describes a reduction?​
ira [324]
The answer choice is going to be B.
7 0
3 years ago
Other questions:
  • Which factor does not influence the rate of a chemical reaction
    8·1 answer
  • Unless told otherwise where should you dispose Solid Waste
    11·1 answer
  • How does flame spread over liquid depend on the flash point?
    7·1 answer
  • What is the name of this compound?<br> OCH3CCH2 CH3
    9·2 answers
  • The eye is connected to the brain by nerves.<br><br> A. True <br> B. False
    9·2 answers
  • SnBr2<br><br> what is the name of this formula?
    12·1 answer
  • What will happen to the pH of sodium bicarbonate if vinegar is added to it?​
    15·1 answer
  • Write the symbol for every chemical element that has atomic number less than 13 and atomic mass greater than 17.2 u.
    7·1 answer
  • Which is the electron configuration for zinc?
    5·1 answer
  • Answer the following questions in complete sentences.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!