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
Nimfa-mama [501]
3 years ago
5

Organisms on earth are what-based life forms oxygen hydrogen carbon

Chemistry
2 answers:
slavikrds [6]3 years ago
8 0

Answer:

oxygen, and hydrogen and carbon... those are all things that make up the elements.

Explanation:

laila [671]3 years ago
5 0
I think that the answer is oxygen, oxygen plays a huge role in the evolution of organisms.
You might be interested in
I NEED ANSWER ASAP Which of the following statements is true for a scientific theory? It is a well-tested hypothesis. It is veri
Digiron [165]

Answer:

A.) It is a well-tested hypothesis.

7 0
3 years ago
Read 2 more answers
Suppose a student titrates a 10.00-ml aliquot of saturated ca(oh)2 solution to the equivalence point with 16.08 ml of 0.0199 m h
Alborosie
Following chemical reaction is involved upon titration of Ca(OH)2 with HCl,
Ca(OH)2 + 2HCl ↔ CaCL2 + 2H2O

Above is an example of acid-base titration to generate salt and water. Here, H+ ions of acid (HCl) combines with OH- (ions) of base [Ca(OH)2] to generated H2O

Given,
concentration of HCl = 0.0199 M
Total volume of HCl consumed during titration = 16.08 mL = 16.08 X 10^(-3) L

∴, number of moles of H+ consumed = Molarity X Vol. of HCl (in L)
                                                           = 0.0199 X 16.08 X 10^(-3)
                                                           = 3.1999 X 10^-4 mol
Thus, total number of moles of [OH-] ions present initial = 3.1999 X 10-4 mol
So, initial conc. [OH-] ion = 
\frac{number of moles of [OH-]}{volume of solution (L)} = \frac{3.1999 X 10^(^-^4^)}{10 X 10^(^-^3^)} = 0.03199 M
6 0
3 years ago
One of the leading contributors to climate change is the burning of fossil fuels such as natural gas and oil. Name four things p
Nataly [62]

Answer:cars

Explanation:bc it uses oil

6 0
3 years ago
Read 2 more answers
Please help, 15 points
oee [108]

1rst is D, second is A

Explanation:

5 0
3 years ago
The freezing point of pure chloroform is -63.5°C, and its freezing point depression constant is 4.07°C•kg/mol. If the freezing p
Nady [450]

Answer:

-20.22

Explanation:

4 0
2 years ago
Other questions:
  • Pesticide concentrations in the Rhine River between Germany and France between 1969 and 1975 averaged 0.55 mg/L of hexachloroben
    7·1 answer
  • What is the rate law for the uncatalyzed reaction?
    13·2 answers
  • Density is an intensive physical property because the density of a given substance does not change with the size of the sample.
    8·1 answer
  • I dont get this, like what does it mean by greatest energy can someone help me? Question: Name the type of electromagnetic wave
    10·1 answer
  • Approximate temperature of a .7 mold sample of a gas at 1.2 ATM and volume of .170 L
    10·1 answer
  • What is the common name of sodium bicarbonate
    15·1 answer
  • Why is rain likely when warm, moisture-laden air meets cold air? A) The lighter warm air will rise and cool down, causing conden
    5·2 answers
  • Please hurry I’m stuck!!
    11·2 answers
  • True or false: The nucleus of an atom contains protons and neutrons.
    12·1 answer
  • Why do unicellular organisms live mainly in water?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!