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
Kazeer [188]
3 years ago
7

.

Chemistry
1 answer:
777dan777 [17]3 years ago
6 0
1]Well if the planets were removed the pray would have no food to eat, because of this the food chain would most likely die out, or the pray would need to find a new location with materials they can consume.

2]Explain how energy is transferred through food chains and food webs in an ecosystem. Energy is transferred through the separate trophic levels of a food chain or web by feeding.The first trophic level (producers) is that of plants which are examples of autotrophs – they make their own food.
You might be interested in
Hekehwkhekehekhdkfnflebkdkfbrkebekebe
andrezito [222]
Ndjsjdjdosixisoosxiosodjx xjsxhjsjxkaosmslwkskwksksowkdbxjsixsnnsjxosixis
5 0
3 years ago
Read 2 more answers
What is the beta decay of uranium-237
Airida [17]
During a phenomenon called beta decay the neutron of the isotope uranium 237 emits/releases an electron causing an increase of atomic number. With the reference of a periodic table the "new" element is Neptunium or Np-237. 
3 0
3 years ago
What is the mass of 6.02 x 1022 atoms of Xenon? HELP!!!!!
il63 [147K]
So 6.02*10^22 is avogadro constant, which is the amount of atoms in one mole. If you look Xenon up in the periodic table you will find it's mass given <span>131,293, which is grams per 1 mole. 

</span>
8 0
3 years ago
How much positive charge is in 0.7 kg of lithium? with each atom having 3 protons and 3 electrons. The elemental charge is 1.602
hichkok12 [17]

Explanation:

As a neutral lithium atom contains 3 protons and its elemental charge is given as 1.602 \times 10^{-19} C. Hence, we will calculate its number of moles as follows.

          Moles = \frac{mass}{\text{molar mass}}

                     = \frac{0.7 \times 1000 g}{7 g/mol}

                     = 100 mol

According to mole concept, there are 6.023 \times 10^{23} atoms present in 1 mole. So, in 100 mol we will calculate the number of atoms as follows.

        No. of atoms = 100 \times 6.023 \times 10^{23}

                               = 6.023 \times 10^{25} atoms

Since, it is given that charge on 1 atom is as follows.

                     3 \times 1.602 \times 10^{-19}C

                    = 4.806 \times 10^{-19}C

Therefore, charge present on 6.023 \times 10^{25} atoms will be calculated as follows.

    6.023 \times 10^{25} atoms \times 4.806 \times 10^{-19} C

            28.95 \times 10^{6}C

Thus, we can conclude that a positive charge of 28.95 \times 10^{6}C is in 0.7 kg of lithium.

3 0
3 years ago
What 3 things drive the pressure of a gas up
Sedaia [141]

Answer:

<h3>Density of the Gas</h3>

Explanation:

More molecules mean more hits against the container walls. Increasing the number of particles means you have increased the density of the gas. This third factor is part of the ideal gas law, which explains how these three factors -- temperature, volume and density -- interact with each other.

4 0
3 years ago
Other questions:
  • Enter the complete ionic equation to show the reaction of aqueous lead(ii) nitrate with aqueous potassium sulfate to form solid
    15·1 answer
  • Best light to make a rainbow
    12·1 answer
  • Why the dipole moment of Co2 is zero and that of H2O is 1.85D?
    14·1 answer
  • The numbers of protons in a neutral atom will be equal to the number of-
    14·2 answers
  • The bright-red color of highway safety flares comes from strontium ions in salts such as Sr(NO3)2 and SrCO3. Burning a flare pro
    7·1 answer
  • HELP
    11·1 answer
  • Which chemical equation represents a synthesis reaction?A.HCl + LiOH → LiCl + H2OB.2Na + MgCl2 → 2NaCl + Mg.H2CO3 → H2O + CO2D.C
    9·1 answer
  • If the hydroxide concentration of a solution is
    13·1 answer
  • Which best describes a hydrate?
    8·2 answers
  • Which of the following statements is FALSE:O Density is a measure of how closely packed the atoms of a substance are.O The Densi
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!