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
ivolga24 [154]
3 years ago
8

The first organism in a food chain muust always be what type e of organism

Chemistry
1 answer:
mel-nik [20]3 years ago
7 0
The first organisms are autotrophs (primary producers)
You might be interested in
Guess how many water molecules self-ionize in one liter of water! a) 7 moles b) 1 mole c) 10,000,000 moles d) 0.0000001 moles​
Rudiy27

Answer:

D)

Explanation:

This seems like a weird question

Water is held together by covalent bonds. The amount of energy required to break these bonds so that water would split into it's respective ions is pretty high. The chances that any one of the molecules floating in 1L of water get enough energy to spontaneously burst into it's ions is slim to none.

So, D) seems like the most likely answer

6 0
2 years ago
Assuming that the bath contains 250.0 g of water and that the calorimeter itself absorbs a negligible amount of heat, calculate
Anvisha [2.4K]

Answer:

-3272     kJ/mol

Explanation:

Given and known facts

Mass of Benzene = 0.187 grams

Mass of water = 250 grams

Standard heat capacity of water = 4.18 J/g∙°C

Change in temperature ΔT = 7.48°C

Heat

=250 * 4.18 * 7.48\\=7816.6 \\=7.82

Heat released by benzine is - 7.82 kJ

Now, we know that

0.187 grams of benzene release = -7.82  kJ heat

So, 1 g benzine releases

\frac{ -7.82 }{0.187}\\= -41.8

kJ/g

0.187 * \frac{1}{78.108}=0.00239 mol C6H6

Heat released

= \frac{-7.82}{ 0.00239}

=-3272     kJ/mol

4 0
3 years ago
Which wave has a disturbance that is perpendicular to the wave motion?
RideAnS [48]

transverse wave

A transverse wave is a wave in which particles of the medium move in a direction perpendicular to the direction that the wave moves.

3 0
3 years ago
Consider the formula al2(so4)3. how many atoms of aluminum are present?
Shkiper50 [21]
2 atoms of aluminium
3 0
3 years ago
What is the molar mass of: Ga2(SO3)3?
kap26 [50]

Answer:

Explanation: The molar mass and molecular weight of Cr2(SO3)3 is 344.182.

6 0
3 years ago
Read 2 more answers
Other questions:
  • Which shows a structural formula with a triple bond?
    11·2 answers
  • During the bromination <br> of methane the free radical Ch3 is generated
    10·2 answers
  • total kinetic energy of all the atoms that make up a sample of matter, would that be heat or mechanical????
    15·2 answers
  • In addition reaction ,where does the 4 electrons of double bond end up after the reaction?
    6·1 answer
  • Which term describes protein catalysts in the human body?
    15·2 answers
  • What volume of oxygen gas, in milliliters, is required to react with 0.640 g of SO2 gas at STP?
    13·2 answers
  • Which functional group does the molecule below have?
    11·1 answer
  • Read the volume of the fluid of the graduated cylinder above. Note that each interval is equal to 0.2ml
    6·1 answer
  • In an exothermic reaction, chemical energy is converted to _____.
    6·2 answers
  • 4. What energy transformation takes place when you light a match?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!