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
artcher [175]
3 years ago
7

30 points!! pls help​

Chemistry
1 answer:
Verizon [17]3 years ago
7 0

Answer: B

Explain:

Do you need both?

You might be interested in
Calculate the specific heat in calories per °C of a 2.00 lb pure iron bar.<br> Plz help me!!!
nekit [7.7K]

Answer:

402.7897

Explanation:

Pretty sure but not 100% about it.

grams in 2 pounds = 907.184 * specific heat of iron = .444

=402.789696

4 0
3 years ago
Ben and Jerry were testing powders in science lab. First they put the powder in a zip lock bag. Next they added some water. The
tangare [24]
A) because when gas is produced it changes chemical form whereas the chemical change is obvious.
8 0
3 years ago
Read 2 more answers
A solution with a [H+] of 1.22x10-3M has a pH of _____________________.
Kryger [21]

Answer:

2.91

Explanation:

pH=-log(H3O+)

- Hope that helps! Please let me know if you need further explanation.

7 0
3 years ago
If an element has a half life of one million years, how long will it take to be completely gone
Aleonysh [2.5K]
It should be 2 million years
3 0
3 years ago
Over long time scales the solubility-temperature feedback (below), can affect climate. An increase in atmospheric CO2 concentrat
Mars2501 [29]

The fact that CO2 is released from oceans due to further rise in temperature is an example of a negative feedback.

A negative feedback is one in which the process that produces the feedback is interrupted. That is, the process is stopped as a result of the feedback received.

In this case, CO2  which leads to global warming dissolves in the ocean which serves a large sink for the gas. However, as the increase in ocean temperatures causes decrease in solubility of CO2, more CO2 is released leading to further temperature rise. This is an example of a negative feedback loop.

Learn more: brainly.com/question/13440572

5 0
3 years ago
Other questions:
  • Hydrogen gas and bromine vapor react to form gaseous hydrogen bromide at 1300 K. The value of the equilibrium constant is 1.6 x
    9·1 answer
  • Why does fluorine have a higher ionization energy than iodine?
    10·1 answer
  • The j shaped organ is full of hydrochloric acid
    5·1 answer
  • If a person burns 2171 Cal each day, how much energy (kJ) does she burn in 2 days?
    11·1 answer
  • Consider the following balanced equation:
    10·1 answer
  • What happens when hydrogen gas is passed over hot ferric oxide plzz help ​
    9·1 answer
  • Is carbon dioxide a pure substance
    9·1 answer
  • Calculate the [H+] for<br> (a) black coffee with a pH of 3.59
    7·1 answer
  • Of the following, which most likely involves a chemical reaction?
    12·1 answer
  • NEED HELP ASAP!!!! PLEASE ANSWER THESE QUESTIONS FOR 25+ POINTS AND A BRAINLIEST, KEEP IN MIND THESE QUESTIONS ARE VERY IMPORTAN
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!