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
Zina [86]
3 years ago
11

MARK BRAINEIST PLS ANSWER CORRECTLY

Chemistry
2 answers:
raketka [301]3 years ago
5 0

Answer:

Reflection is when light waves bounce off a surface.

SIZIF [17.4K]3 years ago
3 0
A or D because B and C makes no sense.
You might be interested in
what happens to the yield of hydrogen if the reaction is carried out at a higher temperature but at the same pressure​
valkas [14]

Answer: It increases the rate of desulfurization at a constant feed rate

Explanation:

5 0
4 years ago
The _____ ______ ______ is the average of ______ _____ of a particular atom.
Svetach [21]

The average atomic weight is the average of weighted mass of a particular atom.

The weighted average mass of the atoms in a naturally occurring sample of an element is the average atomic mass, also known as atomic weight.

The average mass of an element's atoms expressed in atomic mass units is known as its atomic mass (amu, also known as daltons, D). The mass of each isotope is multiplied by its abundance to produce the atomic mass, which is a weighted average of all the isotopes of that element.

Therefore, the average atomic weight is the average of weighted mass of a particular atom.

Learn more about atomic weight here;

brainly.com/question/19756221

#SPJ9

6 0
2 years ago
What is 17.8 + 12.115 in sig fig
iogann1982 [59]

Answer:

Explanation:

17.8 + 12.115 = 29.9

Sig Figs

3

29.9

Decimals

1

29.9

Scientific Notation

2.99 × 10 1

E-Notation

2.99e+1

Words

twenty-nine point nine

4 0
3 years ago
Where does water vapor in the air come from?
arsen [322]

Answer:

Heat from the Sun causes water to evaporate from the surface of lakes and oceans. This turns the liquid water into water vapor in the atmosphere. Plants, too, help water get into the atmosphere through a process called transpiration!

3 0
3 years ago
Read 2 more answers
Identify the element symbol<br> 1s22s22p63s23p64s23d104p65s24d5
madam [21]

Answer:

Tc

Explanation:

You just have to follow the rows with the exponents. Just remember that when we get to d, the number in the front is a period lower. Hope this helps!

5 0
1 year ago
Other questions:
  • The alkali metals cesium (cs) and rubidium (rb) were discovered based on their characteristic flame colors. cesium is named afte
    12·1 answer
  • The sum of the oxidation numbers of all atoms in a neutral compound is
    10·2 answers
  • A bomb calorimeter has a heat capacity of 2.18 kJ/K. When a 0.176g sample of gas with a molar mass of 28.0 g/mol was burned in t
    12·1 answer
  • Enter the cycle number, n, in the x column and the number of radioactive atoms in the y column. When you finish, resize the wind
    13·1 answer
  • A 1.00 cm2 blackbody surface emits 201 watts of radiant power. What is the temperature of the surface? Give to the nearest whole
    14·1 answer
  • A principal quantum number refers to:
    5·1 answer
  • Use the pull-down boxes to specify states such as (aq) or (s). If a box is not needed leave it blank. If no reaction occurs leav
    7·1 answer
  • What questions should be considered when evaluating the reliability of a website
    8·2 answers
  • Hey guys I need help with these questions on my test these are my questions I have not done it ***there are 4 pics I put***
    6·1 answer
  • Please help answer!!!​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!