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
Alik [6]
3 years ago
10

4 points

Chemistry
2 answers:
Lostsunrise [7]3 years ago
8 0

Answer:

sun

Explanation:

the sun is the main source of energy for plants, which are at the bottom of the food chain.

Sidana [21]3 years ago
3 0

Answer:

sun

Explanation:

all of the other things get their energy from the Sun

You might be interested in
Which mixture can be separated through filtration because one the substances is insoluble in water?
Oduvanchick [21]
<span>B)Na2SO4 and SrSO4 is the answer</span>
6 0
3 years ago
A ball is rolled at a velocity of 3 m/s and rolls for 5 seconds. How far does<br> the ball roll? *
MrRa [10]

Answer 15m

Explanation: Distance =  Speed x Time

3 x 5 =15

6 0
2 years ago
Which concept can explain the acidic character of Carbon dioxide?​
Mamont248 [21]

Answer:

The concept of lewis acids and bases can explain the acidic nature of CO2. A lewis acid is a compound which can accept an electron pair whereas a lewis base is a compound which can donate an electron pair. CO2 acts as a lewis acid.

5 0
2 years ago
Read 2 more answers
An element and an atom are different but related because
White raven [17]

Answer:

c) An element is made up of all the same type of atom

Explanation:

Atoms are the smallest unit of an element that consists of protons, electrons and neutrons in its structure. An element is the smallest part of a chemical substance that cannot be disintegrated i.e. it cannot be broken down further.

Atoms and elements are different in many ways but they are connected in the sense that an element contains only one type of atoms. For example, aluminum element is made up of only aluminum atoms. Different atoms form a molecule but same atoms form an element.

4 0
3 years ago
Which radioisotopes have the same decay mode and have half-lives greater than
AveGali [126]

The correct answer is (3)


I-131 and P-32


The explanation:


according to attached table:


- we can see that the half life of p 32 is 14.28d (more than one hour)

- and the half life of I-131 is 8.021 d (more than one hour)


and They both have β- decay mode and with half-lives greater than hour.


4 0
3 years ago
Read 2 more answers
Other questions:
  • If the oh is 6.46(10^-9)M what is the pOH
    14·1 answer
  • A certain element consists of two stable isotopes. the first has a mass of 68.9 amu and a percent natural abundance of 60.4 %. t
    12·1 answer
  • How many moles of UF6 would have to be decomposed to provide enough fluorine to prepare 8.99 mol of CF4? (Assume sufficient carb
    6·1 answer
  • Why is it safer to live in the middle of a plate instead of near a plate boundary?
    12·1 answer
  • How many total atoms are represented by the formula below? 4H2SO4
    7·2 answers
  • Identify the period and group of the element that has the electron configuration 1s22s22p63s23p3.
    10·2 answers
  • Chymotrypsin is a serine protease enzyme that we talked about in class. In order for chymotrypsin to function, His-57 in the act
    14·1 answer
  • The initial velocity of a car is 10 m/s to the north. The car undergoes an acceleration of 2 m/sto the north for 4 seconds. What
    11·1 answer
  • Pleaseeeee guysssss
    14·1 answer
  • Why do you see a flash of lightning before you hear the thunder during a storm?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!