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
coldgirl [10]
3 years ago
13

How to memorize the first twenty elements of the periodic table with their numbers

Chemistry
1 answer:
levacccp [35]3 years ago
3 0
You could listen to songs about the Periodic Table, or you could make and study Flash Cards. :)
You might be interested in
On the reaction below, label the BSA, BSB, CA, and CB. CH3COOH + H2O → CH3COO– + H3O+
Ostrovityanka [42]

Answer:

Acid(BSA) = CH₃COOH

Base (BSB) = H₂O

Conjugate base (CB) = CH₃COO⁻

Conjugate acid (CA) = H₃O⁺

Explanation:

Equation of reaction;

CH₃COOH + H₂O → CH₃COO⁻ + H₃O⁺

Hello,

From my understanding of the question, we are required to identify the

1) Acid

2) Base

3) conjugate acid

4) conjugate base in the reaction

Acid (BSA) = CH₃COOH

Base (BSB) = H₂O

CA = conjugate acid = H₃O⁺

CB = conjugate base = CH₃COO⁻

7 0
3 years ago
3. A cylinder of compressed gas has a pressure of 4.882 atm on one day. The next
Debora [2.8K]

Answer:

PART A

Explanation:

3. A cylinder of compressed gas has a pressure of 4.882 atm on one day. The next

day, the same cylinder of gas has a pressure of 4.690 atm, and its temperature is

8°C. What was the temperature on the previous day in °C? Ans: 20°C.

7 0
3 years ago
If a hockey puck is made to slide along a straight line on a completely frictionless surface, which statement about the motion o
JulsSmile [24]
The hockey puck will continue in the same speed in a continues straight line
3 0
3 years ago
Read 2 more answers
Is cobalt 60 more dangerous than bananas ( potassium 40) and why ?
maxonik [38]

Answer:

To the best of my knowledge, it is because of the amount of gamma rays is given off.

Explanation:

While both are isotopes, Potassium 40 gives off fewer gamma rays compared to Cobalt 60. Potassium 40 isn't really harmful to humans, but Cobalt 60 (I believe) is used in chemotherapy.

7 0
3 years ago
Which of the following does not serve as a way to neutralize the charge in a body? Question 3 options: A) Bringing the charged b
Lelechka [254]

Answer: B. Adding more protons to a positively charged body until the number of protons matches the number of electrons

Explanation:

took test got it right

8 0
3 years ago
Other questions:
  • Suppose you held two magnets a short distance apart,then let go. what would happen?
    7·2 answers
  • Which substance can be broken down by chemical means?
    12·2 answers
  • Do nonmetals form anions or cations?
    8·2 answers
  • Using the van der Waals equation, the pressure in a 22.4 L vessel containing 1.00 mol of neon gas at 100 °C is ________ atm. (a
    14·1 answer
  • What is the mass of a sample of material that has a volume of 6260 and a density of 6980 g/cm
    12·1 answer
  • What is the proper safety response to a trash-can fire in a lab?
    9·2 answers
  • aqueous hydrochloric acid HCl will react with solid sodium hydroxide NaOH to produce aqueous sodium chloride NaCl and liquid wat
    10·1 answer
  • An atom has 19 protons and 20 neutrons. what is the atomic number with steps​
    5·2 answers
  • In chemical reactions, the number of atoms in the product is ________________.
    11·1 answer
  • Which elements are<br> considered "Noble Metals"?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!