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
AnnZ [28]
2 years ago
10

Which process causes Earth's surface to warm?

Chemistry
2 answers:
Romashka [77]2 years ago
6 0

Answer:

its B

Explanation:

yes

Black_prince [1.1K]2 years ago
4 0

Answer:

BBBBB

Explanation:

B

You might be interested in
Molecules in 2 moles of carbon dioxide<br>​
Maksim231197 [3]

Answer:

HAVE A NICE DAY OK

I GOT UR ANSWER

5 0
2 years ago
Which of the following is a chemical property of iron? It
astraxan [27]

Answer:

is capable of combining with oxygen to form iron oxide

4 0
3 years ago
True or False <br> a gas that ignites a glowing splint is oxygen
miss Akunina [59]
True, oxygen gas ignites a glowing splint
8 0
2 years ago
Which statement correctly reflects on genetic engineering?
ozzi

Answer:

The answer is B. Genetic engineering can provide genuine benefits to mankind if there is a balance with ethical issues.

7 0
2 years ago
Read 2 more answers
A chemist dissolves 249.mg of pure perchloric acid in enough water to make up 380.mL of solution. Calculate the pH of the soluti
Alla [95]

Answer:

pH = 2.18

Explanation:

Perchloric acid (HClO₄) is a strong acid. This means that in an aqueous solution it completely dissociates into H⁺ and ClO₄⁻ species.

First we <u>convert 249 mg HClO₄ into moles</u>, using its <em>molecular weight</em>:

  • 249 mg HClO₄ ÷ 100.46 mg/mmol = 2.49 mmol HClO₄

<em>Because it is a strong acid</em>, 2.49 mmol HClO₄ = 2.49 mmol H⁺

We <u>calculate the molar concentration of H⁺</u>:

  • 2.49 mmol H⁺ / 380 mL = 6.52x10⁻³ M

Finally we <u>calculate the pH of the solution</u>:

  • pH = -log[H⁺] = -log(6.52x10⁻³)
  • pH = 2.18

4 0
2 years ago
Other questions:
  • What is the most significant breakthrough in forensic science since the development of fingerprinting?
    13·1 answer
  • This type of triglyceride contains more than one double bond in the fatty acid carbon atoms
    15·1 answer
  • What is the pH of a 40.0 40.0 mL solution that is 0.11 0.11 M in CN − CN− and 0.21 0.21 M in HCN HCN ? The K a Ka for HCN is 4.9
    11·1 answer
  • Which of the following does NOT state what the arrow means in a chemical equation? a. produces b. yields c. forms d. conserves
    5·2 answers
  • Cinnamon owes its flavor and odor to cinnamaldehyde (C9H8O). Determine the boiling point elevation of a solution of 92.7 mg of c
    9·1 answer
  • Question 5
    5·1 answer
  • How many kilocalories of heat are released when 75 g of steam at 100 degrees Celsius is converted to ice at 0 degrees Celsius?
    15·1 answer
  • What kingdom do each of the following organisms belong to? *
    5·1 answer
  • The ions S-2, Cl-1, K+, Ca+2, Sc+3 have the same total number of electrons as the noble gas argon. How would you expect the radi
    5·1 answer
  • Each of the following names is wrong. Draw structures based on them, and correct the names:(b) 1,1,1-trimethylheptane
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!