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
MrMuchimi
3 years ago
13

16. In which of these cases do we have enough information to say that the atom is electrically neutral? A. The atom has 15 neutr

ons and 15 electrons. B. The atom has 4 neutrons and 4 protons. C. The atom has 19 electrons and 19 neutrons. D. The atom has 7 protons and 7 electrons.
Chemistry
2 answers:
myrzilka [38]3 years ago
7 0

Answer: Option (D) is the correct answer.

Explanation:

An atom will be electrically neutral when the number of protons equal the number of electrons.

For example, atomic number of fluorine is 9 this means that there are 9 protons in a fluorine atom. Also, there are 9 electrons in fluorine atom. So, fluorine will be neutral.

Thus, we can conclude that out of the given cases we can say that the atom has 7 protons and 7 electrons have enough information to say that the atom is electrically neutral.

vichka [17]3 years ago
3 0
It's B the atom has 4 neutrons and 4 protons because atom can be completed through the existence of neutron and proton which stay inside of the neuclues of atom
You might be interested in
If you took a spoonful of tea out of the cup, which would be more painful if it spilled on you? *
serg [7]
Based on my understanding of this question in my opinion atleast small sharp pain is worse so the cup would be more painful as it would spread that sensation over a large part of the body. (Hope this helps have a great day)
6 0
2 years ago
Why doesn’t alcohol freeze?
Dmitriy789 [7]

Answer: Because it's a combination of chemicals, vodka doesn't freeze at the same temperature as either water or alcohol. Of course, vodka will freeze, but not at the temperature of an ordinary freezer. This is because vodka contains enough alcohol to lower the freezing point of water below the -17°C of your typical freezer.

Explanation: .......

5 0
3 years ago
Read 2 more answers
Position (m)
Alex777 [14]

Option C. The object is returning to the start at a constant speed.

<h3>Data points of the Position vs Time graph</h3>

The following data points will be used to determine the motion of the object.

<u>Position               Time</u>

12                          4

10                          6

2                            8

0                           10

From the data above, the position of the object is decreasing towards zero or start point.

Thus, the object is returning to the start at a constant speed.

Learn more about position here: brainly.com/question/2364404

#SPJ1

8 0
2 years ago
Help with this chemistry worksheet
viktelen [127]

Answer:

1. is exothermic

Explanation:

5 0
3 years ago
Read 2 more answers
Hydrogen 3 has a half life of 12.32 years a sample of h-3 weighing 3.02 grams is left for 15.0 years what will the final weight
yawa3891 [41]

Answer:

The final mass of sample is 1.3 g.

Explanation:

Given data:

Half life of H-3 = 12.32 years

Amount left for 15.0 years = 3.02 g

Final amount = ?

Solution:

First all we will calculate the decay constant.

t₁/₂ = ln² /k

t₁/₂ =12.32 years

12.32 y =  ln² /k

k = ln²/12.32 y

k = 0.05626 y⁻¹

Now we will find the original amount:

ln (A°/A) = Kt

ln (3.02 g/ A) = 0.05626 y⁻¹ × 15.0 y

ln (3.02 g/ A) = 0.8439

3.02 g/ A = e⁰°⁸⁴³⁹

3.02 g/ A = 2.33

A = 3.02 g/ 2.33

A = 1.3 g

The final mass of sample is 1.3 g.

8 0
3 years ago
Read 2 more answers
Other questions:
  • The following is true about an index fossil:
    15·1 answer
  • What is the overall charge on the compound, sodium hydroxide?
    14·1 answer
  • In which way are solar panels helping Indonesian society?
    6·1 answer
  • James Watson and Francis Crick _____.
    7·2 answers
  • What step of the scientific method do we decide whether our hypothesis was correct or not
    12·1 answer
  • Which part of homeostasis is this adorable puppy balancing out with his little stuffed animal buddy?
    14·1 answer
  • Helppppppppp pweaseeeee
    5·1 answer
  • 15 The picture shows Earth’s rotation. Which pattern listed below is caused by Earth’s rotation? A Water cycle processes B Lengt
    9·1 answer
  • How many grams of calcium are in 2.65 g of CaCO3?
    9·1 answer
  • Rocks are classified as sedimentary, metamorphic, or igneous on the basis of
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!