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
xxMikexx [17]
3 years ago
15

Please, I need at least accurate answers for my Sound Knowledge Check for my Science class.

Chemistry
2 answers:
mrs_skeptik [129]3 years ago
8 0
Pretty sure it’s absorption
Alla [95]3 years ago
5 0

Answer:

1.A

2.A

3.C

4.C

5.B

6.A

You might be interested in
Define electronegativity<br>​
stira [4]

Answer: Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons.

Explanation: Hope this helps!

6 0
2 years ago
Which formula equation represents the burning of sulfur to produce sulfur dioxide?
Dmitriy789 [7]

Answer:

option A = S(s) + O₂(g)   →   SO₂ (s)

Explanation:

Chemical equation:

S(s) + O₂(g)   →   SO₂ (s)

when sulfur burned in the presence of oxygen it produce sulfur dioxide. The sulfur dioxide can further react with oxygen to produce sulfur trioxide and then react with water to form sulfuric acid.

Uses of sulfur dioxde:

It is used as a solvent and reagent in laboratory.

Sulfur dioxide is used to produce sulfuric acid.

It is used as a disinfectant

It is also used as a reducing agent.

It is used to preserve the dry food.

7 0
3 years ago
Calculate the atomic mass of chromium it’s composition is 83.79% with a mass of 51.94 amu; 9.50% with a mass of 52.94 Amu; 4.35%
Elina [12.6K]

<span><span>Convert the percentages into decimals (you can do that by dividing the percent by 100), then multiply that by its corresponding mass to find its relative amount/ contribution to the atomic mass of chromium. After doing so, add all of the obtained values together to get the average mass.

</span> 83.79% = .08379
9.50% = .095
4.35% = .0435
2.36% = .0236

Average mass of chromium = 0.8379(51.94) + 0.095( 52.94) + 0.0435(49.95) + 0.0236(53.94)

Answer: 52amu

P.S. never forget units
</span>
8 0
2 years ago
- How many grams of nitrogen (N2) are needed to react with 435.2 g of oxygen (02) in the following equation?
Llana [10]

Explanation:

I think the answer is this for a better check mass- mass ratio in stoichiometry lesson

5 0
2 years ago
4. If the DNA nitrogen bases were TACCGGAT, how would the other half of
Elena L [17]

Answer:

<u>ATGGCCTA</u>

Explanation:

For this we have to keep in mind that we have a <u>specific relationship between the nitrogen bases</u>:

-) <u>When we have a T (thymine) we will have a bond with A (adenine) and viceversa</u>.

-) <u>When we have C (Cytosine) we will have a bond with G (Guanine) and viceversa</u>.

Therefore if we have: TACCGGAT. We have to put the corresponding nitrogen base, so:

TACCGGAT

<u>ATGGCCTA</u>

<u></u>

I hope it helps!

6 0
2 years ago
Other questions:
  • Is filling up beakers with 200ml of water bad
    9·1 answer
  • The first living things to live in an are are*
    15·1 answer
  • Paleomagnetic evidence was used to confirm which of the following hypotheses?
    14·2 answers
  • What is a cell and why do we need them?
    5·2 answers
  • Complete el crucigrama sobre conceptos del agua.
    11·1 answer
  • How are the two types of glaciers similar and how are they different
    9·1 answer
  • Which statement about hydrogen bonds is true?
    10·2 answers
  • A new radio station, KHEM-AM, broadcasts
    9·1 answer
  • Based on their locations in the periodic table, which two elements are most likely to form covalent bonds with each other?
    9·1 answer
  • PLEASE HELP ME WITH THID IFK IT!! ILL GIVE YOU EXTRA POINTS
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!