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
Serjik [45]
3 years ago
8

What are two things that characterize the practice of science

Chemistry
1 answer:
Harlamova29_29 [7]3 years ago
6 0
1. Curiosity
2.<span> Necessity</span>
You might be interested in
How does Dr.Hoffmann's ultrasound device benefit society? ( modern chemistry textbook page 180).
Masja [62]
<span> She developed new models for emergency ultrasound education and competency assessment, created a successful emergency ultrasound fellowship program, and introduced electronic </span>workflow<span> solutions to </span>Hopkins<span>, increasing the use of emergency ultrasound by 7-fold.</span>
7 0
3 years ago
Read 2 more answers
Denumiți ionul produs în soluție atunci când de adaugă acizi în apa​
svet-max [94.6K]

Answer:

Ionul de hidroniu este un factor important atunci când avem de-a face cu reacții chimice care apar în soluții apoase. Concentrația sa în raport cu hidroxidul este o măsură directă a pH-ului unei soluții. Se poate forma atunci când un acid este prezent în apă sau pur și simplu în apă pură. Formula chimică este H3O +

Explanation:

The hydronium ion is an important factor when dealing with chemical reactions that occur in aqueous solutions. Its concentration relative to hydroxide is a direct measure of the pH of a solution. It can be formed when an acid is present in water or simply in pure water. It's chemical formula is H3O+

marke me as brainliest  please

3 0
3 years ago
Help pleaaasee??????????? can u tell me whether it's physical or chemical change
Karo-lina-s [1.5K]
2) chemical
3) chemical
4) physical
5)chemical
6)chemical
7)physical
8)physical
9)physical / chemical
    100% sure
5 0
3 years ago
Annie has a soccer ball and a kickball she kicks each ball with the same force the soccer ball accelerates at 3 m/s to the secon
Alexxandr [17]

Answer:

Because of less weight kick ball has more acceleration.

Explanation:

Acceleration of kick ball:

5 m/s

Acceleration of soccer ball:

3 m/s

Newton's second law:

According to newton's second law the acceleration of object depends upon two variables.

1) Mass of object

2) Force acting on it

Mathematical expression:

a = f/m

a = acceleration

f = force

m = mass

The force on balls are same thus the acceleration is depend upon the masses of balls.

The soccer ball has more weight that's why its acceleration is less while kick ball is lighter and thus its acceleration will more.

8 0
3 years ago
Write the chemical equation for the formation of HI from the single, isolated H and I atoms.
mart [117]

Answer:

H2 + I2 → 2 HI.

Explanation:

Hydrogen iodide is a diatomic gas which can be readily formed from the direct combination of the elements involved which is hydrogen and iodine. Both elements can be combined by irradiating the mixture with an electromagnetic radiation that has a wavelength which is equal to that needed to break the iodine molecule bond between the two iodine atoms

7 0
3 years ago
Other questions:
  • 3. How many grams of<br> CoCl, in 1/2 Liter would be<br> used to make a 1.0 molar<br> solution?
    15·1 answer
  • 1 Mr. Chavez paid $14.32 total for 8 protein bars.
    14·1 answer
  • How do cations of the same charge change in radius as you move down a column in the periodic table?
    14·1 answer
  • How many nitrogen are in carbon tetranitride
    14·2 answers
  • Based on Table F, which compound is least soluble in water?
    10·1 answer
  • A student described two properties of a substance as shown.
    7·1 answer
  • 21. Which energy level has the lowest amount of energy?
    14·2 answers
  • What is a cartographer?
    11·1 answer
  • The rate of decay of a radioactive substances is calculated by
    12·1 answer
  • Plzzz help pls How many liters are in 6.74 x 1023 particles of PbCl2?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!