Answer:
i believe its B
Why doesn't the air pressure crush this tiny
flower?
Answer:
because air pressure crushes masses and or grams that have a stronger gravitaional
pull
What happens when a base dissolves?
O A. It increases the concentration of OH in solution.
O B. It increases the concentration of Hi in solution.
O C. It is no longer dangerous.
O D. It adds oxygen to the solution.
Answer:
A. It increases the concentration of OH in solution.
Explanation:
Answer:
B. It increases the concentration of Hi in solution.
Explanation:
A.p.e.x
If the Sun continues its evolution according to theory, what will be its last stage?
A.As a black hole
B. As a white dwarf
C. As a red giant
D. As a planetary nebula
Pls help
Based upon your knowledge of metallic activity, which element would most readily react with water?
A) Li
B) Zn
C) Cu
D) Fe
Answer:
d
Explanation:
Of the given options, Lithium (Li) would most readily react with water.
• The substances that spontaneously go through a chemical reaction with water, as they are highly reducing in nature are known as water reactive substances.
• The alkali metals and the alkaline earth metals are the metals that reacts the most with water.
• In the periodic table, the alkali metals, that is, lithium, sodium, potassium, rubidium, caesium, and francium are the most reactive metals.
• They all react explosively and vigorously with cold water leading to the displacement of hydrogen.
• The alkaline earth metals are the second most reactive metals in the periodic table apart from Be, which does not react with water.
Thus, Li is the alkali metal that reacts readily with water.
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#12. How are the volume and pressure of a gas at constant
temperature related?
Answer:
The volume of a given amount of gas is inversely proportional to its pressure when temperature is held constant (Boyle's law). Under the same conditions of temperature and pressure, equal volumes of all gases contain the same number of molecules (Avogadro's law).
Explanation:
Hope it helped :)
Marie Curie was discriminated against because she was a woman. Do you feel that there are still barriers to women entering careers in science these days2. Explain your answer.
Answer:
yes I do I feel like people think that people's are thinking that men are stronger then women in someone situations
Answer:
yes
Explanation
i would say yes because many woman and girls struggle to get jobs because of their record,hair,skin color,and past.
Explain why this compound is not a hydrocarbon. *
(2 points)
which color does barium nitrate emits in a flame test? a. yellow b. orange c. green d. blue
yellow
coz i answered that already
What will most likely cause a sudden wind to start blowing?
Answer:
wind is just high and low pressure of air, when a high pressure comes and crashes into a low pressure air pocket than it can form a wind storm.
Explanation:
The Uneven heating of the Earth's surface. Earth's rotation and unequal heating of the Earth's surface. air pressure towards regions of lower air pressure. ... air moving from areas of high pressure to areas of low pressure.
This is what will most likely cause a sudden wind to start blowing.
Help me on this question, will give brainliest.
You can calculate the mechanical energy of an object by _____.
A. first calculating its thermal energy
B.adding its chemical energy and its electrical energy
C. subtracting its potential energy from its kinetic energy
D. combining its potential energy with its kinetic energy
Answer:
D - combining it's potential energy with it's kinetic energy
Why is a pyramid shape used to represent the energy in an Ecosystem?
Answer:
An energy pyramid shows the flow of energy at each trophic level in an ecosystem. A pyramid shape is used because energy is lost at each trophic level when organisms use it up.
Explanation:
Can anybody help please
Answer:
Three hydrogen atoms
what is the formula and give the name of the compound formed by following ions: hydrogen, and nitrite. (hydrogen : H, group 1)
Explanation:
Hydrogen = H
Nitrite = NO₂⁻
The compound formed by Hydrogen and Nitrite is;
Name = Nitrous Acid
Formular = HNO₂
How do temperature, humidity, and pressure vary within an air mass?
A.Temperature and humidity vary, but pressure does not.
B.Humidity makes the pressure in an air mass increase.
C.Temperature, humidity, and pressure are basically the same all through an air mass.
D.Temperature at the border of an air mass is always higher than in the middle.
Make sure to give me an explanation so I don't get dirt about me cheating. I just really need to know this simple question. Please, be so helpful.
Answer:
C
Explanation:
Temperature, humidity, and pressure are all the same through an air mass.
what reagents can be used to test for unsaturation of hydrocarbons?
Answer:
Bromine test is used to test the unsaturation of hydrocarbons.
Explanation:
What are the four ions formed when sodium chloride undergoes electrolysis?
Answer: The four ions formed are [tex]H^+[/tex] , [tex]OH^-[/tex] , [tex]Na^+[/tex] and [tex]Cl^-[/tex]
Explanation:
Electrolysis is the process where electricity is used to drive chemical reactions.
In the electrolysis of aqueous solution of sodium chloride, hydrogen gas produces at the cathode which is a negative electrode and chlorine gas produces as the anode which is a positive electrode and the sodium hydroxide remains dissolved in the solution.
The reactions will be :
[tex]NaCl\rightarrow Na^++Cl^-[/tex]
[tex]H_2O\rightarrow H^++OH^-[/tex]
Hence, electrolysis of an aqueous solution of sodium chloride lead to the formation of four ions,[tex]H^+[/tex] , [tex]OH^-[/tex] , [tex]Na^+[/tex] and [tex]Cl^-[/tex]
All organisms have the same number of cells
A. true
B. false
A tow truck does 10,000 J of work in 5 seconds. Calculate the power.
Answer:
power is work/time so 10,000j/5s=2000J/s
The light energy captured during photosynthesis is stored as
water.
sugar.
carbon dioxide.
electrons.
Answer:
Sugar
Explanation:
This is because water and carbon dioxide are required during photosynthesis. Oxygen along with glucose, that is a type of sugar is produced. The oxygen is diffused out in to the air, while the sugars are stored in the leaf thus light energy captured during photosynthesis is stored as 'sugar'
The last electron in an atom of oxygen is added to a ___ orbital.
a. 2p
b. 1p
c. 3p
d. 2s
Answer:
A
Explanation:
Describe at least two different objects that you think are magnetic. Why do you think these objects are magnetic?
(That was a fake question). Real question is do you master,bate
Answer: yes but usally to Doujinshi
Explanation:cause it’s better then Real stuff I guess
Answer:
boy noooooo
Explanation:
FeO + C -----> Fe + CO2 balanced help
Answer:
2FeO + C ---> 2Fe +CO2
Explanation:
when do you consider that a typhoon will enter or effect the country
Answer:
sorry I don't understand this subject sorry
Explanation:
What is the molarity of a solution containing 72.9 grams of HCl in enough water to make
500 mL of solution?
Answer:
3.9mole/liter
Explanation:
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3. How can a community help implement Ecological Solid Waste Management.
4. As a student, how can this program help you in your school?
Answer:
It help cause we compost food scraps and other organic wastes. We also reuse and recycle materials to organize for government and industry to develop community recycling materials.
It depend on your opinion as a student.
Explanation:
Hope it helps
Organizing a community to collect waste and implementing ecological solid waste management greatly helps to reduce pollution and landfilling also creates ideas for recycling.
What is solid waste management ?In order to build and sustain an efficient waste management programme, community-based waste management are partnerships between non-governmental organizations, governmental organizations, and the affected communities.
Community based waste management helps to direct participation and accountability of community members monitoring the collection and reduction of trash waste separation at the homestead level
Similarly they are using priceless and reusable goods on-site , recycling organic trash as well as public collection service collects and transports garbage to a treatment facility.
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What is the name given to the process shown in the diagram
A cat runs 27 meters in 2 seconds. What is the velocity of the cat? (answer with up to 2 decimal places)
Answer:
13.5 meters/seconds
Explanation:
v = displacement/time
v= 27 meters/2 seconds
v= 13.5 m/s
What is the percent of copper in CuS?
Answer:
Element Symbol Mass Percent
Cuprum Cu 66.464%
Sulfur S 33.537%
Explanation:
I got this out of my module, sorry if it's wrong but i am pretty sure 97% this is correct!
Where does heat come from
Answer:
All matter contains heat energy. Heat energy is the result of the movement of tiny particles called atoms, molecules or ions in solids, liquids and gases. Heat energy can be transferred from one object to another. The transfer or flow due to the difference in temperature between the two objects is called heat.
Explanation: