Answer:
Increasing the surface area of a reactant increases the frequency of collisions and increases the reaction rate. Several smaller particles have more surface area than one large particle. The more surface area that is available for particles to collide, the faster the reaction will occur.Feb 22, 2021
Explanation:
Please mark me brainliest I never got it before
50 POINTS!
What do you expect to happen to the reaction rate when the size of a solid reactant is changed describe increased in size or solid reactant effect on rate/decrease in size of solid react in a second on rate
Answer:
sorun nedir anlamıyorum seni türkçe yaz
Why is Polaris an important star?
Because it is the brightest star in the night sky
Because appears to remain in a fixed location due north while all the other stars appear to move around it a.
Because it is located halfway between The Big Dipper and Cassiopeia
Because you can find the North star from any place on Earth and never lose your way
Pleaseeee helpppp ;-;
Answer:
BECAUSE APPEARS TO REMAIN IN A FIXED LOCATION DUE NORTH WHILE ALL THE OTHER STARS APPEAR TO MOVE AROUND IT.
Explanation:
I'M NOT SURE.CORRECT ME IF WRONG
Extra points please someone help
Answer: Plants and animals share many characteristics, but they are different in some respects hope that helps-
Explanation:
what are greenhouse effect 1 paragraph and come friends
pls hurry
Answer:
The greenhouse effect is a natural process that warms the Earth's surface. When the Sun's energy reaches the Earth's atmosphere, some of it is reflected back to space and the rest is absorbed and re-radiated by greenhouse gases.
Explanation:
Greenhouse gases are certain gases in the atmosphere (water vapor, carbon dioxide, nitrous oxide, and methane, for example) that trap energy from the sun. Without these gases, heat would escape back into space and Earth's average temperature would be about 60º F colder.
the warming of the Earth's atmosphere that is caused by air pollution. Note: The greenhouse effect occurs when warmth from the sun is trapped in the Earth's atmosphere by a layer of gases (such as carbon dioxide) and water vapor.
Shown in the table below are solubility data for different salts in water at 60oC.
Which salt is most soluble at 60o C?
A, B, C, or D.
(Chart Below:)
Answer:
D is the most soluble in water at 60 degrees Celsius
According to the data given in the table, the salt is most soluble at 60o C - salt D.
In the given table it is given that all the salts are soluble in different concentrations in different concentrations of the water at the same temperature of 60 degrees celsius.
Salt A - 10/ 50 grams H₂OSalt B - 20/60 grams H₂OSalt C - 30/120 grams H₂OSalt D - 40/120 grams H₂OConverting them in the same amount of H₂O that is 100 grams in the same ratio:
Salt A - 10/ 50 = x/100 gram = 20 gram/ 100 gram H₂OSalt B - 20/60 = x/100 grams = 33.3 gram/ 100 gram H₂OSalt C - 30/120 = x/100 grams = 25 gram/ 100 gram H₂OSalt D - 40/120 = x/100 grams = 50 gram/ 100 gram H₂OThus, the salt D is the most soluble that is 50 grams per 100 gram H₂O.
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This yellow nonmetal with a distinct odor is used in the manufacture of
gunpowder, the vulcanization of rubber, and in insecticides and
medicinal drugs.
Answer: it is Sulphur, S
Explanation:
3) Two atoms have identical electron configurations. Which statement about the atoms
is true?
a) They have the same chemical properties.
b) They must have the same mass.
c) They must have the same number of neutrons.
d) They could be atoms of different elements in the same group.
First person with the right answer gets brainliest thanks (btw the numbers on the right are the answers choose the right one)
Answer:
there isnt anything
Explanation:
which formation is a result of a hotspot
Answer:
Hotspots occur when one of the Earth's plates moves over an unusually hot part of the Earth's mantle. These hot areas are usually relatively stationary and result in large amounts of magma rising up, piercing a hole in the plate to form a volcano. As the plates move, a series of volcanoes can form.
The Henry's Law constant (k) for carbon monoxide in water at 25°C is 9.71 x 10-4 mol/(L·atm). How many grams of CO will dissolve in 1.00 L of water if the partial pressure of CO is 2.75 atm? A) 3.53 x 10-4 g D) 7.48 x 10-2 g B) 2.67 x10-3 g E) None of these choices is correct. C) 9.89 x 10-3 g
Answer:
2.67 * 10-3 mol/L
Explanation:
Henry's law is a gas law that states that the amount of dissolved gas in a liquid is proportional to its partial pressure above the liquid. The proportionality factor is called Henry's law constant. (Wikipedia)
Given that; C =kP
C= concentration of a dissolved gas = ?
k = Henry's Law constant = 9.71 x 10-4 mol/(L·atm)
P = partial pressure of the gas = 2.75 atm
So,
C = 9.71 x 10-4 mol/(L·atm) * 2.75 atm
C = 2.67 * 10-3 mol/L
is this reaction oxidation or reduction
CH2=CH2 + OsO4 yields to HOCH2CH2OH
Answer:
it's definitely a oxidation reaction because here the oxygen contained OH group present in yeild
First person with the right answer gets brainliest thanks (btw the numbers on the right are the answers choose the right one)
which kingdom does spiny lobster, and diatom belong to?
Answer:
Animalia
Explanation:
Select the correct answer.
Observe the two images. What is the correct conclusion?
copper in hot
sulphuric acid
bunsen burner
copper in
hydrochloric acid
Image 1
Image 2
O A. Copper reacts with any kind of acid.
B. Copper does not react with acids.
Conner rearts with sulfuric acid when heated
Which is a NOT a freshwater source on Earth?
A. The ocean
B. The atmosphere
C. Surface water
D. Groundwater
Answer:
B the atmosphere it's not on earth and I'm pretty sure the atmosphere doesn't have water in
Explanation:
Need help on thissss
Answer:37
Explanation:
Because mass number is proton number + neutron number
First person with the right answer gets brainliest thanks (btw the numbers on the right are the answers choose the right one)
1. What is the density of a 75 g block of wood measuring 12 cm x 8 cm x 9 cm?
Answer:
0.087 g/cm^3
Explanation:
Density is Mass : Volume.
Volume = 12 x 8 x 9 = 864 cm^3
Mass = 75 g
Density = 75g/864 cm^3 = 0.087 g/cm^3
The density of a 75 g block of wood measuring 12 cm x 8 cm x 9 cm is 8.6 x 10⁻⁵ Kg/cm³.
What is density?
Density is defined as the mass per unit volume of the body. Mathematically-
ρ = M/V
Given is a 75 g block of wood measuring 12 cm x 8 cm x 9 cm.
We can write -
Mass = [m] = 75 g = 75/1000 = 0.075 Kg
Volume = [V] = L x B x H = 12 x 8 x 9 = 864 cm³
Therefore, the density of the object will be -
ρ = M/V
ρ = 0.075/864
ρ = 8.6 x 10⁻⁵ Kg/cm³
Therefore, the density of a 75 g block of wood measuring 12 cm x 8 cm x 9 cm is 8.6 x 10⁻⁵ Kg/cm³.
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If you have a 15% salt water solution, how many grams of salt do you have if you have
50 ml of water.
Answer:
15 grams should be the answer
EXTRA CREDIT. The rate at which an object moves is its speed. If a horse
walked 50m in 68s, cantered 150m in 35s, and galloped 300m in 22s, what
would its average speed be? Show your work! Help ASAP
HELP ASAPPPP PLEASEEEEEEEEEE
Answer: 1.) A. Nebula
2.) I think it's K. Planetary Nebula
3.) E. Red Supergiant
4.) C. Main Sequence
5.) F. Supernova
6.) I. White dwarf
7.) B. Protostar
8.) G. Black Hole
9) J. Black dwarf
10.) H. Neutron Star
11.) D. Red Giant
equation of bhr and h2o
1. What is the correct order of the water cycle?
A cloud, water vapor, rain,
B rain, cloud, water vapor
C water vapor, cloud, rain
D water vapor, rain, cloud
Organisms on earth are
th-based Ilfe forms.
hydrogen
oxygen
carbon
Hurryyyy!!
Answer:
carbon...?
Explanation:
Answer:
Carbon
Explanation:
Carbon makes up most of the building blocks of life. Hope that is right. Good luck
Which of the following will have the greatest proportion by mass of nitrogen?
Ammonium nitrate
Ammonium sulphate
Ammonium phosphate
Aluminium nitrate
Find the mass of 3.89 mol of NaF
help me if your good at science
Answer:
B.
Explanation:
I had this same question today and got it right
Answer:
Genetic variability of offspring
Explanation:
Basically the sorting of genes
The mass in grams of an Avogadro number of molecules is its:
O formula mass
O molar mass
O inertial mass
O atomic mass
Someone who looks after all of the different area managers in a large corporation such as in HR, Business Information, and Operations is called a:
The person who looks at the different area managers in a large corporation such as in HR, Business Information and Operations is known as a general manager.
What is organizational structure?An organizational structure can be described as the process which involves dividing an organization into several functional units. A functional organizational structure is a kind of structure used to organize staff by categorizing them into several departments based on their roles or functions, skill sets, and knowledge.
These departments are vertically structured and may include IT, sales, finance and marketing, research, customer service, etc. The various departments are headed by functional managers who have the responsibility of managing, overseeing, and reporting to the executive management.
A manager is an individual who has the responsibility of providing guidance, supervision, support, and administrative control, as well as acting as a role model to the employees working in an organization.
Generally, managers are involved in taking up leadership roles and are expected to build strong relationships with their subordinates by providing a fair ground for effective communication and sharing of resources.
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An aerosol can was found to burst at a pressure of about 24 atm and 85 c. What was the pressure inside the can at normal room temperature ( about 23 c)
Answer:
Drd
Explanation: