Answer:
B. Transfer energy to reaction center chlorophylls.
Explanation:
Accessory pigments absorbs sunlight, these compounds are found in photosynthetic organisms, which work in conjunction with chlorophyll. Acessory pigments absorbs and transfer light energy to reaction center chlorophylls.
which of the following contains a covalent bond?
A) BeO
B) LiCI
C) CN
D) MgO
Answer= C) CN contains a covalent bond.
Which of the compounds in the table below is listed in the wrong colum?
Answer: C
Explanation: This is because of a nice thing called guessing
How many molecules are in 1.3 moles of water?
Answer:
7.8286e+23
Explanation:
Use Avogadro's number
Zn + 2HCl —> ZnCl2 + H2
If you have 6.8 moles of zinc chloride produced, how many moles of zinc reacted?
Answer:
about 4 or 4.8
Explanation:
Why is the molecule not an example of a cis stereoisomer
Answer:
Because in order to have cis or trans configuration both carbon of alkene need to have a hydrogen
One of the products when aqueous Na, CO, reacts with aqueous
Sn(NO3), is
O a. Sn(CO3)2
O b. CNO3
O c. NaSn.
O d. NaNO3
Answer:
NaNO3
balanced equation - Na2CO3 + Sn(NO3)2 → 2NaNO3 + Sn(CO3)
Volcanoes will most likely form along a convergent plate boundary that is....
A. Continental vs Continental
B. Continental vs Oceanic
C. None of the above.
Answer:
I think its b part or none of above
Elements join together to form_____.
Answer:
compounds
Explanation:
What mass of sugar and water is needed to make 40 g of 10% solution?
Answer:16g
Explanation:A solution's percent concentration by mass,
% w/w
, basically tells you what mass of solute you get per
100 g
of solution.
How do characteristic properties help you determine whether a chemical
change or a physical change has occurred? I
Answer: The difference between a physical reaction and a chemical reaction is composition. In a chemical reaction, there is a change in the composition of the substances in question; in a physical change there is a difference in the appearance, smell, or simple display of a sample of matter without a change in composition.
Explanation:
FeCl3
+
NaOH →
Fe(OH)
+
Naci
-
balance plzzzz help I live give u the brainliest
Will Mark Branliest!
How many grams are in 4.1 mole sample of CO?
Please select the word from the list that best fits the definition
a new energy source found in the ocean that is currently very costly to obtain
nonrenewable resources
renewable resources
methane hydrates
plankton
petroleum
nonliving resources
Answer:renewable resources
Explanation:
pls help me out!! perform the mathematical operation and report to the appropriate number of significant figures 0.00325136-1.76527
Answer:
-1.76202
Explanation: Because the operation is subtraction, you would count the number of digits after the decimal point. Then you would perform the operation and round your answer to the SMALLER number of digits after the decimal point.
I get it! Now I know that an organism's traits
are controlled by ____________
Answer:
Genes mainly, however the environment as well
Explanation:
Which chemical equation below shows a combination (or synthesis reaction?
A) 2KClO3 —> 2KCI+3O2
B) C+ O2 —> CO2
C) 2H2O —> 2H2 + O2
D) NaCl —> Na + Cl
Answer is C
A synthesis reaction looks like this:
A+ B → AB
1. Atomic mass of 12 and 6 neutrons what is the atomic number?
Answer:
The atomic number would be 12.
Explanation:
A neutral atom of Carbon-12 contains six protons, six neutrons, and six electrons.
28) what is the number of oxygen atoms in the formula unit of Ca3(PO4)2?
Answer:
4.816x10²⁴atoms
Explanation:
the number of moles of oxygen is 8
let x be number of oxygen atoms
recall that 1 mole=6.02x10^23 atoms
therefore, 8 moles =x
cross multiply
8 x 6.02 x 10^23 = x
x = 4.816 x 10²⁴atoms
Can someone help me please
Answer: The correct pairs of elements likely to form ionic compounds are, potassium and sulfur, magnesium and chlorine. The answer is argon please give me brainlist
Explanation:
Help this is due today!!!
Answer:
a) Fe
b) Fe
c) Fe
Explanation:
When using their stoichiometric ratios, in all of the the iron will run out before the oxygen, making the iron the limiting reactant.
How did the Heisenberg uncertainty principle contribute to the idea that electrons occupy “clouds," or "orbitals”?
Answer:
Because the exact position of the electron is not known,it must be assumed that the electron takes up the entire space in an orbital.
Explanation:
You know that a circuit is a path along which electrical charges can flow. In this activity, you are going to illustrate that the flow of electricity needs a closed circuit. Your task is draw the wires that connect these objects in order to create a closed circuit. In the space provided, write one sentence that identifies why this circuit allows electrical charges to flow. Be sure to include each object in your answer.
Answer:
I cant do it for you but to help you I can tell you this The charged particles can move only when there is a complete conducting pathway (called a 'circuit' or 'loop') from one terminal of the battery to the other.
Explanation:
Countercurrent Flow
Which filter regions have a concentration gradient between the blood and dialysate?
Check all that apply.
Answer: All options (I, II, III, IV, V)
Explanation: The answer is all options because they never reach equilibrium or intersect at a region as the both decrease at the same rate.
Answer: Picture shows the correct one
Explanation:
what is the heaviest element on the periodic table
Answer:
uranium
Explanation:
The heaviest naturally stable element is uranium, but over the years physicists have used accelerators to synthesize larger, heavier elements. In 2006, physicists in the United States and Russia created element 118.
Answer:
Uranium
Explanation:
Naturally its uranium, however scientists are artificially making bigger ones (which aren't on the periodic table).
Hope this helps!
CORRECT ANSWER WILL GET BRAINLIEST
Is the following nuclear equation balanced?
A. yes
B. no
Answer: B. no
Explanation:
1) Which of the following is true about Earth’s plates?
a. Earth’s plates are separated by oceans.
b. Earth’s plates are piled on top of one another within the Earth.
c. Earth’s plates fit closely together with the edges of the plates touching each other.
d. Earth’s plates are surrounded by melted rock and do not touch each other.
Answer:
a because the others whould cause earthquakes
Explanation:
Answer:
A
Explanation:
because i think is A (if is not im sorry )
Who ever gets it right first I will give brainly and 20 points. Have a very merry christmas
Answer: It is conserved.
Explanation: When the box is pushed across the floor, then floor and box becomes warm which resembles the condition of conservation of energy.
The given problem can be resolved by the concept of energy conservation. The statement of energy conservation says that, "Energy is neither be created nor be destroyed, but it is converted from one form to another.
In the given problem, the person pushes the box across the floor, such that the mechanical energy from the moving arms of person is transferred to the box, and the box and floor becomes warm.
During this process, the energy from the person moving arm is transferred to the box in the form of kinetic energy. And thus kinetic energy is then being transferred to thermal energy or heat energy, due to which the box and floor becomes warm.
Thus, we can conclude that the given case reflects the process of transformation of energy from one state to another, which highlights that during the process, energy is conserved.
Is oxygen ionic or molecular
Answer:
morlecular element is oxygen
What happens when your face is near the spoon. Please specify.
Answer:
RBCs are disc-shaped with a flatter, concave center. This biconcave shape allows the cells to flow smoothly through the narrowest blood vessels. ... Many RBCs are wider than capillaries, but their shape provides the needed flexibility to squeeze through
Why does all matter contain thermal
energy?
A. Because particles stop moving
B. Because all matter is hot
C. Because particles can never stop moving
D. Because all matter is cold
Answer:
The answer is C. Because particles can never stop moving
Explanation:
"All matter has thermal energy, even matter that feels cold. That's because the particles of all matter are in constant motion and have kinetic energy."
