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
GREYUIT [131]
3 years ago
7

What is 22.0 +5.28+ 15.5

Chemistry
1 answer:
AveGali [126]3 years ago
6 0
Please post chem related qn only. The ans is 42.78
You might be interested in
Is zach gay and a joe biden
shtirl [24]

Answer:

yes they're gay

5 0
2 years ago
According to the article, puberty indicates the beginning of adolescence. How does nutrition influence the start of adolescence?
Arisa [49]

Answer:

<h3>  adolescence begins according to your diet</h3>

Explanation                                                                                          <em>unhealthy diet</em>  brings about early or late commence  of adolescence especially  in girls                                                                                                                          

6 0
1 year ago
Nitrogen and water react to form nitrogen monoxide and hydrogen, like this: N2(g) + 2H2O(g) → 2NO(g) +2H2(g) Also, a chemist fin
Thepotemich [5.8K]

Answer:

Kc for this reaction is 0.43

Explanation:

This is the equilibrium:

N₂(g) + 2H₂O(g) → 2NO(g) +2H₂(g)

And we have all the concentration at equilibrium:

N₂: 0.25M

H₂ : 1.3M

NO: 0.33M

H₂: 1.2M

They are ok, because they are in MOLARITY. (mol/L)

Let's make the expression for Kc

Kc = ( [NO]² . [H₂]² ) / ([N₂] . [H₂O]²)

Kc = (0.33² . 1.2²) / (0.25 . 1.2²)

Kc = 0.4356

In two significant digits. 0.43

8 0
3 years ago
Step 1: H2(g) + → ICI(9) HI(g) + HCl(g) (slow)
sineoko [7]

Answer:

B

Explanation:

Step 1 occurs at a slower rate than Step 2.

6 0
3 years ago
You are examining the DNA sequences that code for the enzyme phosphofructokinase in skinks and Komodo dragons. You notice that t
jek_recluse [69]

Answer: D. Mutation in coding sequences are more likely to be deleterious to the organism than mutations in noncoding sequences.

Explanation: It was not likely to be that the coding sequences are replicated more often. The only possible explanation is that the mutations in coding is more likely to be deleterious to the organism than mutations because it is in a non coding sequence.

8 0
3 years ago
Other questions:
  • Gasoline has a density of 0.749 g/mL. How many pounds does 19.2 gallons of gasoline weigh? Use significant figures. Do not enter
    12·1 answer
  • Read the chemical equation.
    10·2 answers
  • A certain substance makes up 4.8 × 10–4 percent by mass of a normal healthy human being. How many grams of that substance would
    5·1 answer
  • How many significant digits are there in the measurement 50,600 mg A)4 B)5 C)6 D)7
    10·2 answers
  • Peroxyacylnitrate (PAN) is one of the components
    13·1 answer
  • I need helpppp! i don’t understand this
    12·1 answer
  • How do volcanoes remind<br> us that god still cares for<br> This world
    10·2 answers
  • .........m.......................<br><br><br><br><br><br><br>i need ur help guys​
    9·1 answer
  • What is a displacement reaction
    7·2 answers
  • Why does benzocaine precipitate during neutralization?.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!