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
miss Akunina [59]
4 years ago
15

What is the result of multiplying 2.5x10 to the power 10 by 3.5×10 to the power of -7

Chemistry
1 answer:
Shtirlitz [24]4 years ago
5 0
Simplify

8.75 x 10^10 x 10^-7

Use product rule

8.75 x 10^3
You might be interested in
[02.06]When electrons are in an unstable state, they will quickly return to their lower energy level. When this happens, energy
inn [45]

The lowest energy state an atom can be at is called its ground state. When an electron in an atom has absorbed energy it is said to be in an excited state. An excited atom is unstable and tends to rearrange itself to return to its lowest energy state. When this happens, the electrons lose some or all of the excess energy by emitting light. Light is only emitted at certain frequencies, each corresponding to a particular electronic transition within the allowed states.

electrons emitting light so the electrons will be in ground state

5 0
4 years ago
Read 2 more answers
12 POINTS!! Which step would help a student find the molecular formula of a compound from the empirical formula?
pishuonlain [190]
Is the C because the mass in the compound is correct
7 0
4 years ago
A mixture of gases with a pressure of 800.0 mm hg contains 60% nitrogen and 40% oxygen by volume. what is the partial pressure o
klasskru [66]
Hello!

<span>We have the following statement data:
</span>
Data:
P_{Total} = 800 mmHg
P\% N_{2} = 60\%
P\% O_{2} = 40\%
P_{partial} = ? (mmHg)

<span>As the percentage is the mole fraction multiplied by 100:

</span>P =  X_{ O_{2} }*100

<span>The mole fraction will be the percentage divided by 100, thus:
</span><span>What is the partial pressure of oxygen in this mixture? 
</span>
X_{ O_{2} }  =  \frac{P}{100}
X_{ O_{2}} =  \frac{40}{100}
\boxed{X_{ O_{2}} = 0.4}


<span>To calculate the partial pressure of the oxygen gas, it is enough to use the formula that involves the pressures (total and partial) and the fraction in quantity of matter:
</span>
In relation to O_{2} :

\frac{P O_{2} }{P_{total}} = X_O_{2}
\frac{P O_{2} }{800} = 0.4
P_O_{2} = 0.4*800
\boxed{\boxed{P_O_{2} = 320\:mmHg}}\end{array}}\qquad\quad\checkmark
<span>
Answer:
</span><span>b. 320.0 mm hg </span>
7 0
3 years ago
Which of the following is NOT a way that thermal energy is transferred?
g100num [7]

Answer:

Your answer would be D.) Convection. I hope this helps you! :)

3 0
2 years ago
Plz help me fast!!!!!!!!!!!
Arisa [49]
A) scientific theory

4 0
3 years ago
Other questions:
  • A car slowing down for a stop sign in an example of
    5·2 answers
  • mary walked north her home to sheila home is 4.0 away then turned right and walked another 3.0 kilometers to the supermarket whi
    11·1 answer
  • Which of the following halogens would have the highest melting point?
    13·1 answer
  • Which of the following is an oxidation-reduction reaction?
    6·1 answer
  • HURRY !The number of electrons in an atom decreases as you move from left to right in the periodic table.
    6·2 answers
  • Which statement about covalent bonds and electrons is true?
    9·2 answers
  • Please answer both questions Thankyou
    12·1 answer
  • Consider the following reaction: Solid zinc was added to 1.0 M HC1.
    12·1 answer
  • Why was the discovery of high temperature superconductors so startling to scientists?
    6·1 answer
  • Can someone answer these questions about the LACK OF CLEAN DRINKING WATER? PLS. I will give 30 pts.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!