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
TiliK225 [7]
3 years ago
7

I need more help please with all of these problems

Chemistry
1 answer:
prohojiy [21]3 years ago
3 0

Answer:

I need points

Explanation:

You might be interested in
How does velocity and mass affect momentum?
ollegr [7]

Velocity and mass are directly proportional to the quantity of momentum by:

p = mv. Therefore, and increase in either velocity or mass will lead to an increase in momentum and vice versa. Momentum during a reaction is always conserved, meaning that the mass and initial velocity before a reaction will always be equal to the change in mass and velocity produced after the reaction. Kinetic energy after a reaction, however, is not always conserved. For example if a fast moving vehicle collided with a stationary vehicle, and moved together, the overall kinetic energy would be after the reaction, as a heaver mass would be moved by the same velocity causing a decrease in kinetic energy.

I don't know if this is exactly what you are looking for, but in physics this is how it is understood.

4 0
3 years ago
PH is 7.45. Calculate value of [H3O+] and [OH-]
lana66690 [7]

Answer:

The answer is (H30+) =3,55e-8M and (OH-)=2,82e-7M

Explanation:

We use the formulas:

pH= - log(H30+)  and Kwater=(H30+)x(OH-)

pH= - log(H30+)  ----< (H30+)= antilog- pH=antilog- 7,45=3,55E-8M

Kwater=(H30+)x(OH-)

(OH-)=Kwater/(H30+)= 1,00e-14/3,55e-8 = 2,82e-7

8 0
3 years ago
5. Water is known to have a composition which is 88.8% oxygen by mass. If you had a
Fantom [35]
Oxygen : 367*0.888=325.896
Hydrogen : 367 - 367*0.888 = 41.104g
4 0
3 years ago
1. An object was carefully weighed on three different balances. Each balance was zeroed
Hoochie [10]

Answer:

10.335

Explanation:

An object was carefully weighed on three different balances

Each of these balances were zeroed before weighing

The masses that were weighed are as follows

10.35 g , 10.355 g, 10.30 g

Therefore the average value of these measurements can be calculated as follows

The total number of mass is 3

= 10.30 + 10.355 + 10.30/3

= 31,005/3

= 10.335

Hence the average value of these measurements is 10.335

7 0
3 years ago
Deforestation affects which of the following?
finlep [7]

Answer:

water cycle and carbon cycle

5 0
3 years ago
Read 2 more answers
Other questions:
  • Jocelyn has 400 pounds of chemical A that she must react with 200 pounds of chemical B to create chemical C for use in an indust
    12·2 answers
  • What does pH stand for? and how acidic is the soil after rainfall
    13·1 answer
  • Describe the profile you would expect for a biological catalyst. Complete the sentences to explain why an enzyme is different th
    11·1 answer
  • What do all nickel atoms have in common
    6·1 answer
  • What three types of repetition did did the beatles use in their songs?
    6·1 answer
  • Calculate the number of molecules in 15.7 mil carbon dioxide
    5·1 answer
  • Calculate how many moles of Ca(OH)2 are needed to produce 4.8 x 1024 NH3 molecules, according to the following equation
    12·1 answer
  • Giving brainliest please help with this question
    8·1 answer
  • A gas occupies 900 mL at a temperature of 27 °C. What is the volume at <br><br> 132 °C?​
    10·1 answer
  • Define solute and solvent ​
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!