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
Dovator [93]
2 years ago
15

Help me guys plzlzlz

Chemistry
2 answers:
Kaylis [27]2 years ago
7 0

i think its d because 900+1200 is 2100, but im probably wrong for question 1

mafiozo [28]2 years ago
3 0
The correct answer is d
You might be interested in
What is the concentration of hydronium ion in a 0.121 M HCl solution?
kogti [31]

Answer:

C) 0.121 M

Explanation:

HCl + H₂O = H₃O⁺ + OH⁻

.121M              .121M

HCl is a strong acid . It will dissociate almost 100 % so the concentration of acid and hydronium ion formed will be equal . It is to be noted that hydronium ion is formed due to association of H⁺ and H₂O . H⁺ is formed due to ionisation of HCl .

So concentrtion of hydronium ion ( H₃O⁺ ) will be .121 M.

7 0
3 years ago
What is the mole ratio of NH3 to N2?
Ksenya-84 [330]
To answer this question a balanced chemical equation is necessary. The correct equation is: N2 + 3H2 = 2NH3
From this equation, one mole of nitrogen react with 3 moles of hydrogen to give 2 moles of ammonia.
Therefore, the mole ratio of NH3 to N2 is 2:1
8 0
2 years ago
1. Consider the decomposition reaction of sodium chlorate. There are 100 grams of
IRINA_888 [86]
A. NaCl(s) and O2(g)

B. 2NaClO3(s) —> 2NaCl(s) + 3O2(g)

C. moles NaClO3 = 100 g / 106.44 g/mol = 0.939 mol NaClO3

D. 0.939 mol NaCl (because the NaClO3 and NaCl are in a 1 to 1 ratio)

E. grams NaCl = 0.939 mol • 58.44 g/mol = 54.9 g NaCl

F. moles of O2 = 0.939 mol NaClO3 • (3 mol O2 / 2 mol NaClO3) = 1.41 mol O2

G. grams of O2 = 1.41 mol • 32 g/mol = 45.1 g O2

H. Percent yield = 10/45.1 • 100% = 22.2% yield
6 0
3 years ago
Please answer
AURORKA [14]

Answer:

hi

Explanation:

1 east

2 the flower bud for cotton and for jute the leaves

plz mark me as a BRAINLIST

4 0
2 years ago
Pleaseeeee hellppppp !!!!
Tomtit [17]

Answer:

  1. both
  2. cation
  3. anion
  4. both
  5. cation
  6. anion
  7. both
  8. both
3 0
3 years ago
Other questions:
  • How does vegetation slow and prevent sediment loss?
    8·1 answer
  • Which law is based on the graph that is shown below? A graph is shown with pressure on the horizontal axis and volume on the ver
    10·2 answers
  • Balance the following chemical equation.​​​​​​​(2)
    12·1 answer
  • Calcium is a nontoxic metal that is used in supplements to maintain strong bones. Under high pressure conditions, over about 320
    10·1 answer
  • A gas that exerts a pressure of ? bar in a container with a volume of 0.5650 L will exert a pressure of 715.1 bar when transferr
    8·2 answers
  • Which term is defined as the change in the direction of light when it goes from one medium into a different medium?
    11·1 answer
  • How many moles are in 18g of sugar(C6H12O6)
    13·1 answer
  • Drag each statement into the appropriate bin depending on whether the event occurs in the lumen of the small intestine, in a sma
    13·1 answer
  • 7. The youngest part of the ocean floor is found ____.
    6·1 answer
  • Carbon from the remains of an extinct Australian marsupial, called Diprotodon, has a specific activity of 0.61 pCi/g. Modern car
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!