A test tube is filled with water and a green plant called elodea.

Answers

Answer 1

Answer: The bubbles produced are most likely due to oxygen.

Explanation:

Photosynthesis is a phenomenon in which green plants containing chlorophyll use sunlight as a source of energy to convert carbon dioxide and water to form glucose and oxygen.

The balanced chemical reaction for photosynthesis is:


Related Questions

Which option correctly describes the pattern of valence electrons on the periodic table? (1 point)
o The number of valence electrons increases from right to left.
O The number of valence electrons increases from left to right.
O The number of valence electrons increases from bottom to top.
O The number of valence electrons increases from top to bottom.

Answers

Answer:

The number of valence electrons increases from left to right.

Explanation: The number of valence electrons increases going across a period, or row in the periodic table, for example, group 1 elements have 1 valence electrons and group 2 elements have have 2.

A solution is made by adding 200 g table salt to 1 L water. The solubility of salt is 36 g/100 mL water.

Which term best describes this solution?

dilute

saturated

supersaturated

unsaturated

Answers

Answer:

The answer is unsaturated

Answer:

supersaturated

Explanation:

how do ions form bonds, and describe the structure of the resulting compound.​

Answers

Answer:

Electrons are transferred between atoms together in the ionic compound. The ions are arranged in a regular repeating pattern in an ionic crystal

Explanation:

Ions electrostatically attracts its counter ions and forms the ionic bond between these ions. The structure of ionic compounds depends on the number of atoms and bonded pair of electrons.

What is ionic bonding ?

Ionic bonds are formed between metals and non-metals. Metals are electron rich and easily loss one or more electrons to the electron deficient non metals.

The loss of electrons make the atom forms a positive ion called cations. The gain of electrons make the formation of anions or negative ions. These positive ions and negative ions attracts electrostatically and forms ionic bond between them.

The structure of ionic compounds depends on the number of bonded atoms, size, presence of lone pairs etc. In solution ionic compounds exists as separate ions.

Find more on ionic bonding :

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2 hydrogen atoms; 3 helium atoms; 5 oxygen atoms; 6 iron atoms
19 aluminum atoms; 15 phosphorus atoms; 7 sodium atoms
B. What do the following spellings indicate:
4Cl; 12 thousand; 17Zn; 2 grams; Three; 8C; 15Al

Answers

Answer:

4chlorine;12thousand ;17zinc;2grams;three 8carbon;15aluminium

when two atoms bond chemically it is because of the interaction between

Answers

Answer:

Chemical bonds form when the valence electrons of one atom interact with the valence electrons of another atom

what are some of the activities performed during experiment​

Answers

Make a hypothesis or prediction about the results of the experiment. Determine the methods involved in conducting the experiment. Acquire necessary helpers and materials. Test the materials and the experimental design, as needed, before conducting the experiment.

Please help I am stuck on this question

Answers

i think the answer is nervus cell because they work togtter to form the brain

what is the physical state of gold at room temperature

Answers

Answer:

solid

Explanation:

gold is relatively unreactive and exists as a solid at room temperature

It is found as a solid in gold mines, and in gold nuggets in river beds

Anyone wanna have fun? gvk psad wsq​

Answers

Answer:

Nope im cool to sleep right now

Explanation:

Which of the following would not be made in a ribosome?
O enzymes
O cholesterol
O antibodies
O water-soluble hormones

Answers

Answer:

cholesterol(lipid)

Explanation:

Ribosomes are called PROTEIN FACTORY

Ribosomes are involved in protein synthesis

Any metabolite or substance protein in nature can be synthesized on ribosomes

enzymes are protein in  natureantibodies are y shaped protective proteinswater soluble hormones are also amine or protein in nature

Since they are protein in nature hence can be synthesized on ribosome.

WRONG OPTIONS:

CHOLESTEROL IS LIPID IN NATURE

LIPIDS ARE NOT proteins and cannot be SYNTHESIZED ON RIBOSOME

LIVER DOES THIS FUNTION OF CHLESTEROL SYNTHESIS.

what is a chemical reaction of sulfric acid?

Answers

Sulfuric acid reacts violently with alcohol and water to release heat. It reacts with most metals, particularly when diluted with water, to form flammable hydrogen gas, which may create an explosion hazard. ... Hazardous decomposition products are as follows: sulfur dioxide, sulfur trioxide, and sulfuric acid fumes.

it acts violently with water or alcohol to release some heat, it does react to most metals, mostly when diluted with water to form flammable hydrogen gases, which may create an explosion hazard.

(i tried to make the g00gle answer less complicated) :)

What is the energy of a single photon with a wavelength of 750 nm.

Answers

Answer:

Refer to the attachment

what is the source of the carbon plants use to make organic molecules?

Answers

Answer:

Carbon dioxide serves as the source of carbon,

Explanation:

Phản ứng tương tác của ancol tạo thành este được gọi là

Answers

phản ứng este hoá ạ
good luckk

Can you guys please help me with this chart PLEASEEE?

Answers

I am still gathering the pictures but this should help with one of them

I need help pleaseeee

Answers

I believe its rocket 3 because the mass is bigger causing it to slow down when launched vs how it would launch if it weighed lighter please mark me brainliest hope it helps

In terms of attractive forces, explain why LiClhas a higher melting point than SCI2.​

Answers

Answer:

Well, SCl2 is known, so is disulfur dichloride… Cl−S−S−Cl …and BOTH these species are molecular… On the other hand, lithium chloride, an ionic salt, is decidedly non-molecular, and consists of an infinite array of lithium and chloride ions held together by strong electrostatic forces ….. and thus we would expect the salt to have the much higher melting point….

A field of many different species of wildflowers would be considered a(n) _____________.

a
organism
b
population
c
community
d
ecosystem
e
biome
f
biosphere

Answers

Answer:

That would be a community.

Explanation:

A field of many different species of wildflowers is considered to be a community.

What is community in biological terms?

It is called biological community meaning an interacting  group of various species sharing a common location.Factors which determine overall structure of community  are number of species, abundance of each species,interaction among the species and community's ability to return to normal after a natural calamity.

Change of communities over a period of  time is called as ecological succession.Each species in a community has its own characteristic niche . The niche includes all the interactions of the species with other members of the community.An ecosystem comprises of biological community together with its physical environment.

Learn more about biological community,here:

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how many electrons can occupy the 4p sublevel of a neutral atom of bromine

Answers

Answer:

6

Explanation

every p sublevel holds up to 6 electrons

so the 4p sublevel  must hold up to 6 electonsr

Someone please help :/
I'm writing a lab report for my chem class on crystalline structures and I have absolutely no idea how to write the introduction. Can someone please direct me on how exactly I should write this?
Thanks!

Answers

Answer:

yes i will help

txt me. down and show what is the. project

Which are proteins that recognize specific proteins on bacteria a.antibodies b.enzymes c.nutrients d.receptors

Answers

Answer:

A

Explanation:

Answer:

A. antibodies

Explanation:

Using the formula velocity = distance/time, how fast does sound travel in wood given a distance of 500 m and 0.26 seconds.

A- 1,923 m/s
B- 746 m/s
C- 2,941 m/s
D- 127 m/s

Answers

Answer:

A : 1,923 m/s

Explanation:

= 500/0.26

= 1,923

HELPPPP PLEASE WILLLL GIVE BRIANLIESTTTT

Answers

Answer: 105 mL

Explanation:

We can use the formula M₁V₁ = M₂V₂ the total volume of water that will yield 0.800 M HCl. We can then subtract that from the initial volume to get how much water needs to be added.

Since M₁V₁ = M₂V₂    (starting mole× starting volume = end mole × end volume)

⇒  (5 mol)(20 mL) = (0.80 mol) V₂

         100 mol/mL = 0.8 mol × V₂

⇒                      V₂ = 100 mol/mL ÷ 0.8 mol

                             = 125 m

Since we began with 20.0 mL of water,

water needed to add = 125 mL - 20 mL = 105 mL

                                   

Chemical and physical properties of the seaborgium element

Answers

Answer:

Seaborgium is an artificially produced radioactive chemical element, it's appearance is unknown, it probably has a silvery white or metallic gray colour. The most stable isotope Sg 271 has an half life of 2.4 minutes.

What Group is this Element in?
O Group 3
O Group 4
O Group 7
Group 1

Answers

Answer: group 7

Explanation:

An atom of radium (Ra) forms a monatomic ion.
Which ion does it most likely form?
a- Ra2-
b- Ra-
c- Ra2+
d- Ra+

Answers

Answer:

The atomic number of the element Radium (Ra) is 88. It is an alkaline earth metal. Electronic configuration of Radium (Ra) will be [Rn]7s^{2}[Rn]7s

2

It belongs to the group IIA of the periodic table. Alkaline earth metals that belong to the group IIA of the periodic table lose the valence electrons to form a +2 ion.

Therefore, Radium with an electronic configuration of [Rn]7s^{2}[Rn]7s

2

will lose the two 7s electrons to form the cation with +2 charge.

Someone pls help me I will make you brain

Answers

Answer:

I believe your answer is B.) I hope this helps.

Which of these statements is not true?
A. Atoms of the same element can have different masses
B. The nucleus of an atom has a positive charge
C. Atoms of isotopes of an element have different numbers of protons
D. Atoms are mostly empty space
Option 5

Answers

Answer:

c.

Explanation:

They can have different neutron numbers, not proton numbers. If they were to have different proton numbers it would be classified as a different element.

Deduce the total rate change of momentum of a cylinderical shaped object

Answers

Rotational versus translational kinetic energy; Total kinetic energy; Acceleration of a rolling object. Example scenarios. Rolling cylinders.

how do you determine the thermal energy of an object

Answers

Answer:

An object's thermal energy is dependent upon its temperature and mass. The higher the temperature of a given quantity of a substance, more is its thermal energy. Similarly, for the same temperature, higher mass of a substance will contain more thermal energy

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