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
cluponka [151]
3 years ago
13

Alpha decay _____ of an element.

Chemistry
1 answer:
lidiya [134]3 years ago
5 0
Alpha decay lowers the atomic number of an element. The correct option is B. Alpha decay is a type of radioactive decay in which an atomic nucleus emits an alpha particle, which is an helium particle. During this process, the atomic number of the nucleus is reduced by two and the mass number is reduced by 4.
You might be interested in
Is usually categorized to a specific area in the state known as a soil series
Vikentia [17]

Answer:

Soil series as established by the National Cooperative Soil Survey of the United States Department of Agriculture (USDA) Natural Resources Conservation Service are a level of classification in the USDA Soil Taxonomy classification system hierarchy. The actual object of classification is the so-called soil individual, or pedon.[1] Soil series consist of pedons that are grouped together because of their similar pedogenesis, soil chemistry, and physical properties. More specifically, each series consists of pedons having soil horizons that are similar in soil color, soil texture, soil structure, soil pH, consistence, mineral and chemical composition, and arrangement in the soil profile.[2] These result in soils which perform similarly for land use purposes.

Explanation:

hope its correct

6 0
3 years ago
2.50 L of a gas at standard temperature and pressure is compressed to 575 mL. What is the new pressure of the gas
BartSMP [9]

Answer:

reek

Explanation:

hi

5 0
3 years ago
Calculate the % composition of the unknown liquid using your most precise result. It is a mixture of ethanol (D[ETOH] = 0.7890 g
Rufina [12.5K]

% composition of ethanol = 34.51%

% composition of water  = 65.49%

<h3>What is density?</h3>

A material's density is defined as its mass per unit volume.

Given data:

The density of ethanol = 0.7890 g/mL

The density of water = 0.9982 g/mL

The density of mixture = 0.926 g/mL

Let the % composition of ethanol = x

Let the % composition of water = 100-x

Now density of the mixture

\frac{Mass}{Volume}

Mass = \frac{percent  \;of  \;ethanol  \;X  \;density  \;of  \;ethanol  \;+  \\ \;percent  \;of  \;water X  \;density  \;of  \;water}{100}

0.926 = \frac{x X  0.7890 g/mL  \;+  (100-x) X  0.9982 g/mL}{100}

x= 34.51 %

Hence,

% composition of ethanol = 34.51%

% composition of water = 65.49%

Learn more about the density here:

brainly.com/question/952755

#SPJ1

8 0
1 year ago
Nitrogen is an atom or molecules​
Pavel [41]

Answer:

Nitrogen will called as atom or molecule or ion too in the state which it exist means in which form it is present . 

7 0
2 years ago
In the laboratory, Austin is given a mixture of iron filings, sand, and salt. To separate the mixture, Austin uses a magnet, boi
Alex_Xolod [135]

Answer:

D

Explanation:

7 0
2 years ago
Read 2 more answers
Other questions:
  • Formula mass of (NH4)2SO4?
    8·2 answers
  • I WILL GIVE EXTRA POINTS AND BRAINLIEST I JUST NEED SOMEONE TO ANSWER THIS QUESTIONS!!
    5·2 answers
  • In the reaction 4Al+_O2→2Al2O3 , what coefficient should be placed in front of the o2 to balance the reaction?​
    12·2 answers
  • !!!!HELP ASAP!!!! How does the scientific method help scientists?
    10·2 answers
  • Is the dehydration process a physical or chemical change? Why?
    11·2 answers
  • When a reaction between Magnesium and Hydrochloric acid take place the mass of the reactants is more than the mass of the produc
    8·1 answer
  • HELP PLZZZZ GIVE BRAINLIST PLEZZ HELP!!!!!!!!!!!
    11·1 answer
  • 50POINTS!
    11·2 answers
  • Please help!!! Is the following example of synthesis? 2H2 + O2 —&gt; 2H2O
    9·1 answer
  • What are ways in controlling soil applicable in your community​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!