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
deff fn [24]
3 years ago
10

An atom containing 25 protons, 30 neutrons and 25 electrons will have an atomic mass of:

Chemistry
1 answer:
aliya0001 [1]3 years ago
8 0
Atomic mass=no of neutron+no of electron
Atomic mass=25+30
Atomic mass=55
You might be interested in
Which of the following properties allows water molecules to stick to othe types of molecules?
inn [45]

Answer:

B.) Adhesion

Explanation:

A.) is incorrect. Viscosity is a measure of internal friction that affects the fluidity of a liquid.

B.) is correct. Adhesion is the ability of water to stick to other substances (which are not water).

C.) is incorrect. Surface tension is the tension created by the bonds of the surface particles.

D.) is incorrect. Density is a ratio that compares mass to volume.

5 0
2 years ago
PLEASE HELP ME ASAP!!!! PLEASE!!!!!!!!!! I will give brainliest and 20 points!! PLEASE!
Vika [28.1K]
#1
<span>The rate of diffusion of a gas is inversely proportional to the square root of its molecular weight. 
#2
shape, molecular weight. I don't know for sure though
#3
</span>O2, N2, Ar, H2O vapor
5 0
3 years ago
Which of the following statements is not true? a. Water is polar. b. Water stabilizes temperature. c. Water is essential for lif
Gre4nikov [31]

Answer: d. Water is the most abundant atom in Earth’s atmosphere.

Explanation:

Water percentage in the atmosphere is 0.001 percent only as it not the major reservoir or source of water. The water is available in the atmosphere in the form of water vapors. These water vapors when aggregate and their concentration becomes high they fall down as rain on earth so the rain is collected in water reservoirs like oceans, rivers, lakes, ponds, aquifers, and other sources of water, which are the components of hydrosphere on earth. So, hydrosphere is most abundant in water. Moreover, water is not an atom instead it is the molecule formed by the combination of two molecules of hydrogen and one molecule of oxygen.

4 0
3 years ago
What type of mixture will not allow light to pass through
igor_vitrenko [27]
Suspension.  The particles are big enough for the eye to see, and will separate if left sitting.
5 0
4 years ago
Anna is working on finding the patterns of demographic variation within North America’s populations. What is Anna working on?
nata0808 [166]

Answer:

I am pretty sure that I know what Anna is working on, given that she wants to find the patterns of demographic variation, is population structure.  This structure deals with variations in age, gender, and other qualities of a population, and I believe that is what she wants to find out. So the answer to your question would be that population structures are the patterns of demographic variation.

6 0
3 years ago
Other questions:
  • What is the maximum number of p orbitals in any single energy level in an atom?
    7·1 answer
  • Activated charcoal is used in gas<br> masks. What physical property is<br> related to this use?
    12·1 answer
  • Example of supersaturated aqueus solution
    13·1 answer
  • What is the molar mass of magnesium sulfate, MgSO4?
    8·2 answers
  • The specific heat capacity of water is 4.186 J/g °C
    14·2 answers
  • Poly(ethylene terephthalate) (PET), which has glass transition (Tg) and crystalline melting (Tm) temperature of 69 and 267 °C, r
    6·1 answer
  • Which of the following is a combination of more than on simple machine?
    8·1 answer
  • Recall that the value of K is small for reactions that form very little product. Reactions that form very little product are sai
    5·1 answer
  • Describe a method to calculate the average atomic mass of using only the atomic masses of
    10·1 answer
  • How much is 1 mole of something?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!