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
never [62]
3 years ago
12

Select the correct answer. Samuel adds a teaspoon of salt to a glass of water. He notices that the salt disappears. Samuel takes

a sip to discover that the water tastes salty. What kind of change has occurred? A. It’s a chemical reaction because a new substance has formed. B. It’s a physical change because the water and the salt kept their original properties. C. It’s an example of synthesis because two substances reacted to give one substance. D. It’s a chemical reaction because the water now tastes salty but originally did not.
Physics
1 answer:
borishaifa [10]3 years ago
8 0

Answer:

A

Explanation:

A chemical reaction is a process that leads to the chemical transformation of one set of chemical substances to another. Therefore it can not be any of the other answers because the substance was water at first but now its salty water.

ps what kind of person would drink water after you put salt in it lol.

You might be interested in
A battery is connected to a small torch bulb so that a current flows. The traditional direction of the flow of current and the f
ICE Princess25 [194]

Answer

C.The traditional flow of current is positive to negative and the flow of electrons is the opposite

Explanation:

7 0
3 years ago
Read 2 more answers
A woman fires a rifle with barrel length of 0.5400 m. Let (0, 0) be where the 125 g bullet begins to move, and the bullet travel
seropon [69]

Answer:

A). 11462 Joules

B). 32345.25 Joules

Explanation: The workdone by a variable force undergoing a displacement is in d line of integral.

Find the attached file for the solution.

8 0
4 years ago
Describes newton's 3 laws in collision
denis23 [38]

Answer:

Newton's third law of motion is naturally applied to collisions between two objects. In a collision between two objects, both objects experience forces that are equal in magnitude and opposite in direction. Such forces often cause one object to speed up (gain momentum) and the other object to slow down (lose momentum).

4 0
3 years ago
How many electrons are in an Sn+2 ion?
Veseljchak [2.6K]

Sn is Tin which has 50 atomic number

it means it has 50 electrons in its outer shells

+2 shows its valency

plus sign comes when electrons are removed from an atom

so here 2 electrons are removed from Sn atom

remaining electrons are 50-2

48 electrons

6 0
4 years ago
Read 2 more answers
Gauss's law combines the electric field over a surface with the area of the surface. From Coulomb's law we know that the electri
Romashka-Z-Leto [24]

The change in surface area of Gaussian surface with radius (r) is 8πr.

<h3>Electric field from Coulomb's law</h3>

The electric field experienced by a charge is calculated as follows;

E = \frac{Q}{4\pi \varepsilon_o r^2}

where;

  • E is the electric field
  • Q is the charge
  • r is the radius

The electric field reduces by a factor of \frac{1}{r^2}

<h3>Surface area of a Gaussian surface;</h3>

The surface area of a sphere is given as;

A = 4\pi r^2

<h3>Change in area with r</h3>

\frac{dA}{dr} = 8\pi r

Thus, the change in surface area of Gaussian surface with radius (r) is 8πr.

Learn more about area of Gaussian surfaces here: brainly.com/question/17060446

7 0
2 years ago
Other questions:
  • How was the work of Newlands similar to that of Mendeleev on the periodic table?
    5·1 answer
  • A spring is stretched to a displacement of 3.4 m from equilibrium. Then the spring is released and allowed to recoil to a displa
    14·1 answer
  • Which activity demonstrates the low level intensity
    6·1 answer
  • Kinematics
    6·1 answer
  • I really need help with these questions ASAP and a bit more and I’m really stuck rn
    13·1 answer
  • Which of the following is a chemical charge
    8·1 answer
  • Ay tawaging bayani sa makabagong panahon?
    6·1 answer
  • a magnetic flux of 4.72 x 10^-4 Wb passes through a loop oriented 65.5 degrees to a magnetic field of 1.44 T. what is the area o
    5·1 answer
  • Kitty is pushing her shopping trolley along the ground. She applies a constant force to move the trolley 4 m horizontally. If sh
    12·1 answer
  • Is 1 milliliter/second a small or large flow? Why?
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!