Answer:
D
Explanation:
The offspring of the RRYY x rryy cross, which is called the F1 generation, were all heterozygous plants with round, yellow seeds and the genotype RrYy. As you see, the letters (RrYy) gave uppercase, then lowercase
name this compound
please helppp thank you!!!
Answer:
Sodium sulfide is the chemical compound with the formula Na 2 S, or more commonly its hydrate Na 2 S·9H 2 O. Both are colorless water-soluble salts that give strongly alkaline solutions. When exposed to moist air, Na 2 S and its hydrates emit hydrogen sulfide , which smells like rotten eggs.
I'm not sure if it's right but it's a guess because of the 2Na.
That is sodium carbonate, Na₂CO₃.
Nuclear Equations HELP!!! 100PTS
A nuclear equation is one, where the sum of the mass numbers and the sum of the atomic numbers balance on either side of an equation. Nuclear equation problems will often be given such that one particle is missing.
- A closed container has a volume of 10 ml and a pressure inside of 20 P. If the
container is shrunk to 3 ml, what is the new pressure?
Answer: The new pressure is 66.66 mL.
Explanation:
Given : [tex]V_{1}[/tex] = 10 mL, [tex]V_{2}[/tex] = 3 mL
[tex]P_{1}[/tex] = 20 atm, [tex]P_{2} = ?[/tex]
Formula used to calculate the new pressure is as follows.
[tex]P_{1}V_{1} = P_{2}V_{2}[/tex]
Substitute the given values into above formula as follows.
[tex]P_{1}V_{1} = P_{2}V_{2}\\20 atm \times 10 mL = P_{2} \times 3 mL\\P_{2} = \frac{20 atm \times 10 mL}{3 mL}\\= 66.66 mL[/tex]
Thus, we can conclude that the new pressure is 66.66 mL.
Can anyone list me all the 8 groups of the periodic table , going in order of course?
Answer:
alkali metals
alkali earth metals
transition metals
non metals
noble gases
halogens
rare earth metals
Explanation:
brainliest and a free hug :)
The mass in a chemical reaction is found in
the energy produced by the reaction
the explosion produced by the chemical reaction
the atoms involved in the chemical reaction
the bonds involved in the chemical reaction
Answer:
C: The atoms involved in the chemical reaction
Explanation:
In a chemical reaction, when we balance it up, the number of moles or atoms on the left side must equal that on the right hand side. And thus, the mass is found in the atoms involved in such chemical reaction.
Bases and acids are _
A. Mixtures
B. Gases
C. opposites
D. The same
Answer:
opposite
Explanation:
mark me as a brainlist please
Science and there is a picture
Answer:
c solid metal
Explanation:
it's made of iron and nickel
Answer:
D) solid metal
Explanation:
Unlike the mineral-rich crust and mantle, the core is made almost entirely of metal—specifically, iron and nickel. The shorthand used for the core's iron-nickel alloys is simply the elements' chemical symbols—NiFe. Elements that dissolve in iron, called siderophiles, are also found in the core.
The inner core is solid because it is made of very dense, or heavy, materials - like iron and nickel. Even though it is very hot, these materials don't "melt" very easily, so they stay solid.
Which environment is BEST for an organism that sleeps during the day and digs holes in the ground for shelter?
A
Multiple Choice
1. Think About the definition of remote sensing. Which of the following could be considered sensors?
2. When satellite images are analyzed a unit called the pixel is a key to calculating what?
3. One Pixel represents.
a temperature
a wind speed of 10 kilometers per hour
a land area of 30 by 30 meters
various colors depending on their size
Answer:
Remote sensing is the process of detecting and monitoring the physical characteristics of an area by measuring its reflected and emitted radiation at a distance (typically from satellite or aircraft). ... Cameras on satellites can be used to make images of temperature changes in the oceans.
2.The answer is Land Area. If you know the distance and scale at which the image was captured, than one pixel of the image is equal to an X amount of area. The land area is represented as one pixel in an image called Resolution.
3.A pixel is the smallest picture element addressable on a picture, it is a specific location, and at that location associated with that location, is color, intensity
a.mph (miles per hour), mph. knots, knots. m/s (meters per second), m/s. ft/s (feet per second), ft/s. km/h (kilometers per hour), km/h ...
Explanation:
7 kph 4.35 mph
8 kph 4.97 mph
9 kph 5.59 mph
10 kph
The apparatus or tools that could be considered as sensors are telecopes, probes and landsat satellites.
What is remote sensing?Remote sensing can be defined as a process that is used for the acquisition of information about a phenomenon or physical object on a planet without coming in close contact with it, especially through the use of a telecope, probe or landsat satellite.
When satellite images are analyzed by astronomers or scientists, a unit called the pixel is a key to calculating land area. Also, one pixel is a unit that represents a land area of 30 by 30 meters.
Read more on telescope here: https://brainly.com/question/18300677
(1.7m - 2) + (2m – 4)
Answer: 3.7 m − 6
Explanation: Simplify the expression.
brainliest or a thank you pls :)) <3
When a computer or end-user uses a made-up IP address as a source address is called?
Answer:
That would be a VPN.
Explanation:
Answer:
Would be a dependant, and the IP address is the host address
The heat absorbed or released of a reaction at a constant presser is the same as the change in enthalpy
Answer:
HAT IS THE QUESTIN? hehehe
Explanation:
lol
How many grams of H2O is created from 60 grams of O2?
[2 H2 + O2 —> 2 H2O]
Answer:
67.5 gm H2O
Explanation:
2 H2 = 4 gm
O2 = 32 gm
2 H20 = 36 gm
so 32 gm O2 results in 36 gm H20
32/36 = 60/x x = 67.5 gm
what happens during rusting
A. iron oxide decomposes to iron releasing oxygen
B. iron and oxygen react to form iron oxide
C. iron combusts in oxygen
D. water reacts with iron releasing oxygen
Answer: B
Explanation: I had an even lengthier explanation but Brainly is being a butthead. But I got it right on my test for those who want to know.
Rusting is the process of corroding metallic parts by the action of water and air. Iron forms iron oxide by reacting with water or air.
What is rusting ?Rusting is the process of corrosion of metallic parts by forming a red oxide film on the surface of the metals containing Fe. Metals on reacting with water or air destroys by the action of oxygen.
Mostly iron and copper undergo corrosion. Corrosion is an electrochemical process by which the metal part undergo reduction and deposits in cathode.
Iron easily undergo corrosion forming rust or the red colored iron oxide. Iron react with water through air or water and forms iron oxide on the metal surface which eventually cover the whole metal.
Find more on rusting:
https://brainly.com/question/18376414
#SPJ2
Lysol Power Toilet Bowl Cleaner contains 9.5% hydrochloric acid. Explain why this would be necessary to clean toilet bowls that have white or rust-coloured deposits
Answer:
The acid will absolutely remove the hard water deposits that are trapping the stains. The longer it soaks, the less you have to scrub. It works for hard water stains, limescale, and rust!
Explanation:
hope this helped you out.
what is a mole? not the animal definition lm.ao
Answer: Well, a mole is really the same thing. For a chemist, a mole conjures up the number 6.02 times 10 to the 23rd, not a fuzzy little animal. The only difference is that the other quantities are more familiar to us. Lol
Explanation:
Answer:
basically is a unit measurement for the amount of substance in the unit syystem, some examples are ions, atoms molecules, or electrons.
Explanation:
What color is phenolphthalein in a solution that has a pH of 10?
A substance is tested and has a pH of 8.4. What would you classify it as?
A. A strong acid
B. A strong base
C. A weak acid
D. A weak base
Answer:
D
Explanation:
7 is neutral on a PH scale. Anything less is an acid and anything higher is a base. A Ph scale goes from 1-13. 8.4-7=1.4. This is a small change so it is considered a weak base. Can I get brainliest?
Answer:
D.A weak base
Explanation:
The pH of a weak base falls somewhere between 7 and 10. Like weak acids, weak bases do not undergo complete dissociation; instead, their ionization is a two-way reaction with a definite equilibrium point. While strong bases release hydroxide ions via dissociation, weak bases generate hydroxide ions by reacting with water. Ammonia (NH3) and methylamine (CH3NH2) are examples of weak bases.
The roots of plants are important to photosynthesis because they...
O A
remove glucose from the plant.
ОВ.
remove oxygen from the plant.
OC. provide the water needed.
D. provide the carbon dioxide needed.
Answer:
[tex]\boxed {\boxed {\sf C. \ Provide \ the \ water \ needed}}[/tex]
Explanation:
Photosynthesis is an extremely important process for plants, algae, and some bacteria. It helps create their "food", which is glucose. It is turned into energy so the organism can grow, repair damages, and carry out other processes.
The equation for photosynthesis is as follows:
[tex]H_2O+CO_2+energy \rightarrow C_6H_{12}O_6 + O_2[/tex]
Water, carbon dioxide, and light energy from the sun are converted to glucose and oxygen.
Roots are important for obtaining water. Since they reach into the soil, they can absorb the water. Then, capillary action draws the water up the stem into the xylem and then into the leaves, where photosynthesis occurs.
By what factor does the average kinetic energy of the molecules of gas in an aerosol container increase when the temperature is raised from 300 K to 900 Κ?
Answer:
The average kinetic energy is increased by a factor of 3.
Explanation:
The average kinetic energy is given by:
[tex] \overline{E} = \frac{3}{2}kT [/tex]
Where:
k: is the Boltzmann constant
T: is the temperature
When the temperature is 300 K we have:
[tex] \overline{E_{1}} = \frac{3}{2}300k [/tex]
Now, when the temperature is 900 K:
[tex] \overline{E_{2}} = \frac{3}{2}900k = 3(\frac{3}{2}300k) = 3\overline{E_{1}} [/tex]
Therefore, when the temperature is raised from 300 K to 900 Κ, the average kinetic energy is increased by a factor of 3.
I hope it helps you!
At 40 degrees Celsius , 100 grams of NaClO3 is added to 100 grams of water. The solution would be ..
a.) saturated
b.)unsaturated
c.) saturated with excess
d.) supersaturated.
i did not mean to publish this ;-;
Answer:
dang
Explanation:
Answer:
hi I guess I got free point s
What is the area of ∆XYZ?
Answer:
is there an attachment to this question? i can help if u insert one :)
Explanation:
(●'◡'●)
What causes the buoyant force on an object submerged in water?
Answer:
Upthrust.
An upthrust is that outward protruding force that acts opposite to the weight of the object
how many neurons are in lithium
What pressure, in atm, would be exerted by 0.023 grams of oxygen (O2) if it occupies 31.6 mL at 91
°C?
Answer: A pressure of 0.681 atm would be exerted by 0.023 grams of oxygen [tex](O_2)[/tex] if it occupies 31.6 mL at [tex]91^{o}C[/tex].
Explanation:
Given : Mass of oxygen = 0.023 g
Volume = 31.6 mL
Convert mL into L as follows.
[tex]1 mL = 0.001 L\\31.6 mL = 31.6 mL \times \frac{0.001 L}{1 mL}\\= 0.0316 L[/tex]
Temperature = [tex]91^{o}C = (91 + 273) K = 364 K[/tex]
As molar mass of [tex]O_2[/tex] is 32 g/mol. Hence, the number of moles of [tex]O_2[/tex] are calculated as follows.
[tex]No. of moles = \frac{mass}{molar mass}\\= \frac{0.023 g}{32 g/mol}\\= 0.00072 mol[/tex]
Using the ideal gas equation calculate the pressure exerted by given gas as follows.
PV = nRT
where,
P = pressure
V = volume
n = number of moles
R = gas constant = 0.0821 L atm/mol K
T = temperature
Substitute the value into above formula as follows.
[tex]PV = nRT\\P \times 0.0316 L = 0.00072 mol \times 0.0821 L atm/mol K \times 364 K\\P = \frac{0.00072 mol \times 0.0821 L atm/mol K \times 364 K}{0.0316 L}\\= 0.681 atm[/tex]
Thus, we can conclude that a pressure of 0.681 atm would be exerted by 0.023 grams of oxygen [tex](O_2)[/tex] if it occupies 31.6 mL at [tex]91^{o}C[/tex].
_AgNo3(aq) + _Na2Co3(aq) =
1. Predict the products of the reaction including the states of matter for each product.
2. Balance the equation.
Please help me.
Answer:
2AgNO3 (aq) + Na2CO3 (aq) = Ag2•CO3 (s) + 2NaNO3 (aq)
Explanation:
1) The reaction given is a precipitation reaction between Silver nitrate and Sodium carbonate to give products as Ag_2_CO3 (s) and NaNO3 (aq)
Which are solid Silver carbonate and aqueous solution of Sodium nitrate.
2) The balanced equation is;
2AgNO3 (aq) + Na2CO3 (aq) = Ag2•CO3 (s) + 2NaNO3 (aq)
2. How does an atom of aluminum become an ion?
1. It gains 3 electrons
2. It loses 3 electrons
3. It gains 3 protons
4. It loses 3 neutrons
Answer:
it loses 3 electrons
Explanation:
Tell me if I’m right
How many moles in 53.4 grams of CCl4.
Generic formular: Mole = mass/molar mass
molar mass of CCl4 = 153.811 g/mol
Mole of CCL4 = 53.4/153.811 = 0.347 mol
What is the difference between the coyotes and the gray squirrel population size in year 11?
Answer:
https://www.northallegheny.org/cms/lib/PA01001119/Centricity/Domain/1330/Concept8ecology.pdf is the cite that i got the answers for that form hop it helps
Explanation:
Answer:
As the squirrel population increases their resources become more scarce, putting a limit on population size
Explanation:
