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
Ivahew [28]
3 years ago
7

Elements and Compoundsplease help me​

Biology
2 answers:
I am Lyosha [343]3 years ago
8 0

Answer:

An element is a substance that cannot be broken down into any other substance. made up or consisting of several parts or elements

Explanation:

den301095 [7]3 years ago
7 0

Answer:

<u><em>Question 1:</em></u>

An element is a pure substance which cannot be broken down by chemical means.

<u><em>Question 2:</em></u>

A molecule is a group or cluster of two or more atoms held together by chemical bonds. A compound is a substance or material which is formed by two or more different types of elements which are combined chemically in a fixed proportion.

<u><em>Question 3:</em></u>

Electrons, Protons and Neutrons

<u><em>Question 4:</em></u>

Dmitri Mendeleev in 1869 developed the periodic table.

You might be interested in
Choose the incorrect statement.
klasskru [66]
The answer is In apple..
3 0
3 years ago
Can anybody tell me what a decomposer is
Otrada [13]
Consumer takes energy away
7 0
3 years ago
mammals reproduce using sexual reproduction. It takes two parents to produce an offspring. What can you infer about the number o
uranmaximum [27]

Answer: reproductive cells are haploid

Explanation: mammals are diploid. In sexual reproduction each paren contributes a haploid set, which is what each reproductive cell

4 0
3 years ago
WILL GIVE 36 POINTS AND BRAINLIEST!! PLEASE HELP QUICK!
suter [353]
I’m pretty sure it’s D
5 0
3 years ago
What is the density of a liquid with a mass of 17.4 g and a volume of 20 mL?
iren [92.7K]

Answer:

The density of the liquid is 0.87 g/ml

Explanation:

Density = 17.4g divides 20ml = 0.87 g/ml (rounded to one significant figure)

8 0
3 years ago
Read 2 more answers
Other questions:
  • Aname three things a seahrse eats
    13·2 answers
  • What is the most appropriate recommendation for administering tdap to pregnant patients?
    5·1 answer
  • In a water molecule, the Oxygen has a ____________ charge and the hydrogens have a ____________ charge.
    5·1 answer
  • Energy forms are either potential or kinetic. Potential energy comes in forms that are stored including chemical. gravitational,
    11·2 answers
  • The role of antibodies in the human body is to
    9·1 answer
  • Which of the following characteristics is shared by all modern living systems?
    6·2 answers
  • List of the function of the Mercury vapour and the fluorescenct powder in the fluorescent lamp .​
    9·1 answer
  • . The variations that exist in a population of wild giraffes are usually a result of events that occur during
    7·1 answer
  • If a segment of DNA is 5'-TAC GAT TAG-3', the RNA that results from the transcription of this segment will be__________.
    13·1 answer
  • The two main divisions of the trade industry are?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!