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
Elena L [17]
3 years ago
11

What has 9 protons and -1 charge? please

Chemistry
1 answer:
olga2289 [7]3 years ago
7 0

Answer:

fluorine

Explanation:

it has 9 proton and a negative charge

You might be interested in
The following data are obtained for the decomposition of N2O5 at a certain temperature: 2N2O5(g) ↔ 4NO2(g) + O2(g) Time(s) 0 200
cricket20 [7]

Answer:

K = 0.0003 s⁻¹

Explanation:

The reaction is

2N₂O₅ = 4NO₂ + O₂

The equilibrium is

K[N_{2} O_{5} ]=-\frac{1}{2} \frac{d[N_{2} O_{5} ]}{dt} \\\int\limits^y_x {d[N_{2} O_{5} ]}{} \, =-2k\int\limits^t_0 {dt} \,\\ln[N_{2} O_{5} ]=-2kt+ln[N_{2} O_{5} ]

a plot is attached

From the plot, the slope is -0.0006

-2 * K = -0.0006

K = 0.0003 s⁻¹

Download xlsx
6 0
3 years ago
A pumpkin has a volume of 10 cm and a mass of 8 g. what is the density of the pumpkin​
cricket20 [7]

Answer: 0.8g/cm^3

Explanation:

In seeing your problem, I see an issue with your units for centimeter. The volume is in the third dimension, so we use cm^3 every single time for the volume. That way, we can arrive to the correct density (in g/cm^3)

Density = mass/volume and so

Density = 8g/10cm^3

= 0.8g/cm^3

7 0
3 years ago
How do I do this I need help?!
VARVARA [1.3K]
Https://www.musical.ly/v/MzU0MzExMjk0NjM2ODgwODM3NTA5MTI.html
8 0
3 years ago
some students believe that teachers are full of hot air. If I inhale 3.5 liters of gas at a temperature of 19 degrees Celsius an
Afina-wow [57]

Answer:

3.97 L

Explanation:

Data obtained from the question include the following:

Initial volume (V1) = 3.5 L

Initial temperature (T1) = 19 °C

Final temperature (T2) = 58 °C

Final volume (V2) =..?

Next, we shall convert celsius temperature to Kelvin temperature. This can be done as shown below:

Temperature (K) = temperature (°C) + 273

T (K) = T (°C) + 273

Initial temperature (T1) = 19 °C

Initial temperature (T1) = 19 °C + 273 = 292 K

Final temperature (T2) = 58 °C

Final temperature (T2) = 58 °C + 273 = 331 K

Finally, we shall determine the new volume of the gas by using Charles' law equation as shown below:

Initial volume (V1) = 3.5 L

Initial temperature (T1) = 292 K

Final temperature (T2) = 331 K

Final volume (V2) =..?

V1 /T1 = V2 /T2

3.5 /292 = V2 /331

Cross multiply

292 x V2 = 3.5 x 331

Divide both side by 292

V2 = (3.5 x 331) / 292

V2 = 3.97 L

Therefore, the new volume of the gas is 3.97 L.

5 0
3 years ago
Select the correct answer. If the EMF produced in a wire is 0.88 volts and the wire moves perpendicular to a magnetic field of s
serious [3.7K]

<u>Given:</u>

EMF = 0.88 V

Strength of magnetic field, B = 0.075 N/A-m

Velocity, v = 4.20 m/s

<u>To determine:</u>

The length of wire, L

<u>Explanation:</u>

The EMF is related to strength of the magnetic field B as:

EMF = L*B*v

L = EMF/B*v = 0.88/0.075*4.20 = 2.79 m

Ans: The length of the wire is around 2.8 m


3 0
3 years ago
Other questions:
  • Which of the following provide information about the shape of an orbital
    12·1 answer
  • What is an example of force of attraction between two objects that have mass
    8·1 answer
  • Which tool is used to measure an object’s mass?
    9·2 answers
  • What volume of SO2 is produced when 2.35 g of sulfur burns? (All volumes are measured at STP) S (s) + O2(g) →SO2(g)
    7·1 answer
  • A piece of sodium metal undergoes complete reaction
    13·1 answer
  • 11.23mm____m<br><br> a)1,123<br> b)0.01123<br> C)0.1123<br> D)11,230
    15·1 answer
  • How does an electrolytic cell work?
    11·1 answer
  • HELP WITH FINAL CHEM
    13·1 answer
  • Calculate the frequency of a beam of light that is 35.6m long.
    12·1 answer
  • 3.1
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!