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
qwelly [4]
3 years ago
15

I will give 15 points

Chemistry
2 answers:
Semmy [17]3 years ago
5 0

Answer:

first one i think is b

Explanation:

zheka24 [161]3 years ago
3 0

Answer:

B and C is your answer

Explanation:

Hope I helped, Sorry if I'm wrong

You might be interested in
Name 5 metals used to make the penny over the years.
Irina18 [472]
These 5 metals are: zinc,copper,tin,bronze,nickel
6 0
3 years ago
Which of the following reactions is a synthesis reaction? ​
tamaranim1 [39]
The first reaction is a synthesis reaction (A+B -> AB)
3 0
3 years ago
Read 2 more answers
Suppose that a certain fortunate person has a net worth of $77.0 billion ($). If her stock has a good year and gains $3.20 billi
marissa [1.9K]

Answer:

New net worth to three significant figures = $80.2 billion

Dollars are given to charity = $100,250,000

Explanation:

Net worth = $77.0 billion

stock Gains = $3.20 billion

New net worth = $77.0 billion + $3.20 billion = $80.20 billion

New net worth to three significant figures = $80.2 billion

One-eighth of a percent = (1/8 x 1) / 100 = 0.00125

Dollars are given to charity = 0.00125 X $80.2 billion = $100,250,000

Or

$80,200,000,000/100 = $802,000,000

3 0
3 years ago
A 10,0-L cylinder of gas is stored at room temperature (20.0°C) and a pressure of 1800 psi. If the gas is
makvit [3.9K]

Considering the Charles' law, the gas would have a temperature of -109.2 C.

<h3>Charles' law</h3>

Finally, Charles' law establishes the relationship between the volume and temperature of a gas sample at constant pressure. This law says that the volume is directly proportional to the temperature of the gas. That is, if the temperature increases, the volume of the gas increases, while if the temperature of the gas decreases, the volume decreases.

Charles' law is expressed mathematically as:

\frac{V}{T} =k

If you want to study two different states, an initial state 1 and a final state 2, the following is true:

\frac{V1}{T1} =\frac{V2}{T2}

<h3>Temperature of the gas in this case</h3>

In this case, you know:

  • P1= 1800 psi
  • V1= 10 L
  • T1= 20 C= 293 K (being 0 C= 273 K)
  • P2= 1800 psi
  • V2= 6 L
  • T2= ?

You can see that the pressure remains constant, so you can apply Charles's law.

Replacing in the Charles's law:

\frac{10 L}{293 K} =\frac{6 L}{T2}

Solving:

\frac{10 L}{293 K} T2=6 L

T2=\frac{6 L}{\frac{10 L}{293 K} }

<u><em>T2=163.8 K= -109.2 C</em></u>

The gas would have a temperature of -109.2 C.

Learn more about Charles's law:

brainly.com/question/4147359?referrer=searchResults

7 0
3 years ago
The density of atmosphere (measured in kilograms/meter3) on a certain planet is found to decrease as altitude increases (as meas
Paha777 [63]
The density at 1,291 km from the surface of the planet is

              [ (1,291 - planet's radius)/(planet's radius) ] ^ some power .
7 0
3 years ago
Other questions:
  • Select all that apply. Images produced by a flat mirror are? ( theres more than one answer)
    5·1 answer
  • You are playing a game “will it float?” In this game, you are given a large, square can of tuna. If you know the density of wate
    12·1 answer
  • Which of the following is a chemical change?
    11·2 answers
  • The following phase diagram shows how a catalyst affected the rate of a reaction.
    5·2 answers
  • A flask contains 0.280 mol of liquid bromine, br2. Determine the number of bromine molecules present in the flask.
    12·1 answer
  • A form of phosphorus called red phosphorus is used in match heads. When 0.062 g of red phosphorus burns in air, it forms 0.142 g
    6·1 answer
  • [O.01]Which of these is the location where sea floor spreading occurs? abyss guyot ocean trenches mid-ocean ridges
    15·1 answer
  • I<br> n a mole there are 602
    12·1 answer
  • Helppp nowwww plsss
    13·1 answer
  • This diagram is attempting to compare the sizes of the four inner planets. What is wrong with this diagram?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!