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
dezoksy [38]
3 years ago
11

Which statement describes the masses of the particles that make up an atom?

Chemistry
1 answer:
ryzh [129]3 years ago
8 0

<span>An atom is the smallest component of matter that keeps all of the chemical properties of an element. Atoms merge to form molecules, which then connect to form solids, gases, or liquids. Atoms are made up of three basic particles: protons, electrons, and neutrons. Atoms have different properties based on the order and number of their basic particles. Protons and neutrons have accurate mass, about 1.67x10 -24 grams.</span>

You might be interested in
At 100 degrees Celsius, the ion product for pure water is Kw= 51.3*10^-14. What is the pOH of water at this temperature? A) 7.00
Levart [38]

7.86 is the pOH of water at this temperature of 100 degrees celsius.

Option E is the right answer.

Explanation:

Data given:

Kw = 51.3 x 10^{-14}

pOH = ?

we know that pure water is neutral and will have pH pf 7.

The equation for relation between Kw and H+ and OH- ion is given by:

Kw = [H+] [OH-}

here the concentration of H+ ion and OH- ion is equal

so, [H+]= [OH-]

Putting the values in the equation of Kw

pKw = -log[Kw]

pKw = -log [51.3 x 10^{-14}]

pKw = 12.28

since H+ ion OH ion concentration is equal the pH of water is half i.e. 6.14

Now, pOH is calculated by using the equation:

14 = pOH + pH

14- 6.14 = pOH

pOH = 7.86

8 0
3 years ago
6. Салыстырып
Annette [7]

Answer:

????

???

?????

???

Explanation:

plz follow me

7 0
3 years ago
Scientist use their knowledge of the half-life of carbon and uranium isotopes to measure the age of the rock or fossil .
marusya05 [52]
They can use them to find the age of fossils.
8 0
3 years ago
Actual value= -273 Experimental value= -274
Maurinko [17]

Answer:

<h2><u><em>When measuring data, the result often varies from the true value. Error can arise due to many different reasons that are often related to human error, but can also be due to estimations and limitations of devices used in measurement. Regardless, in cases such as these, it can be valuable to calculate the percentage error. The computation of percentage error involves the use of the absolute error, which is simply the difference between the observed and the true value.</em></u></h2>

Explanation:

4 0
3 years ago
Which of the following is accurate in describing the placement and classification of iodine?
fenix001 [56]
You can answer this question by only searching the element in the periodic table.

The atomic number of iodine, I, is 53. It is placed in the column 17 (this is the Group) and row 5 (this is the Period).

The conclusion is that the iodine is located in Period 5, Group 17, and is classified as a nonmetal.
4 0
2 years ago
Other questions:
  • What is the IUPAC name of the following compound?
    13·1 answer
  • Drag each tile to the correct image. Match each hydrocarbon class to its structure. carboxylic acid amine halocarbon alcohol
    12·1 answer
  • Evidence of a chemical change would be a ___________________. Question options: spinning top. rusting car fender. spilled bucket
    15·1 answer
  • In the Lab you report a measured volume 128.7 of water. Using significant figures as a measure, what range of answers does your
    8·1 answer
  • Is this the correct procedure for cleaning volumetric glassware prior to making a measurement: first, rinse with tap water. Seco
    12·2 answers
  • The Reaction between ketones and alcohol
    12·1 answer
  • Someone help me to these please i dont have much time
    7·2 answers
  • When 3-methyl-1-pentene is treated with in dichloromethane, the major product is 1-bromo-3-methyl-2-pentene.
    9·1 answer
  • If there are 12 people, and each person has 4 coins, there are ____ times as many coins as people.
    11·1 answer
  • Which of the following is NOT a way that thermal energy is transferred?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!