Answer:
The Answer is a liquid.
PLEASE ANSWER ALL I WILL GIVE BRAINLIEST PLEASE!!
How many molecules are there in 3.20 grams of NH4SO2
Answer:
0.0389757845886336
Explanation:
When 5,946 J of heat is added to 79.75 grams of oil at 37˚C , the temperature increases to 64˚C. What is the specific heat of the oil?
Answer:cool kid
Explanation:cool kid
The metal lid is stuck on a glass jar of jelly. Why does running hot water over the lid help you get the lid off? *
a. Thermal expansion causes the lid to expand making it easier to remove.
b. The heat chemically changes the glue around the edge releasing the lid from the jar.
c. The heat warms the jelly causing it to push the lid off the jar.
d. The heat makes the jar contract making it easier to remove.
Answer:
A, because as metal warms, it expands, and makes it easier to remove
Explanation:
^^
If excess sodium sulfate react with 36 g of iron (III) phosphate and produce a 65.0% yield of sodium phosphate, how many grams of sodium phosphate are actually produced?
[tex]Na_2SO_4 + FePO_4[/tex] -> [tex]Na_3PO_4 + Fe_2(SO_4)_3[/tex]
Answer:
According to the stoichiometry, the theoretical yield is 11.5 grams. Multiplying this by 0.650, you get 7.48 grams.
Explanation:
Passenger airplanes take off in the troposphere but can eventually move into
the stratosphere. The planes may remain in the stratosphere until it is time to
land. Why do you think planes fly in the stratosphere?
What are high tides caused by
Answer: the moons gravitational force
Explanation:
Write a story about traveling through space
Answer:
I woke up, went to NASA, stole their spaceship and went into outerspace. The next thing I knew was that I was flying around while Donkey was driving the ship to saturn and then went to jupiter and then we saw asteroids flying around and then saw millions of stars
Explanation:
how many grams of CaCl2would be dissolved in 1.0 L of a 0.10M
solution of CaCl2?
Light
6CO2 + 6H20
CGH12O6 +602
Chlorophyll
The equation above describes the chemical reaction that occurs during
photosynthesis. What happens to the light energy that is shown in the reaction?
Answer:
Light energy acts as a catalyst that speeds up the rate of photosynthesis
Explanation:
How much energy does a wave with a frequency of 7.0 x 1012 Hz have
Answer:
4.64 × 10⁻²¹ J/s
Explanation:
[Only if the wave travels at the speed of light]
Because a wave presumed to be at light speed is a photon, E = hf.
If frequency is not given, E = hc/λ
c is the speed of light in meters per second. c = 299, 792, 458 m/s.
λ is the wavelength which is dependent.
h or plancks constant = 6.62607004 × 10⁻³² m² kg / s.
E is in units of J / s or jules ( m² kg ) per second.
If the wave has a frequency of 7.0 x 10¹² Hz or 7 THz (Tera-Hertz).
E = (6.62607004 × 10⁻³⁴) × (7.0 × 10¹²) =
46.38249028 × 10⁻²² =
4.638249028 × 10⁻²¹ J/s ≈
4.64 × 10⁻²¹ J/s
Which of the following statements best describes an animal impacting the hydrologic cycle?
OA.
When an animal breathes out, water vapor from inside the animal's lungs is released into the air.
ОВ.
Water from precipitation is absorbed into an animal's fur and is then released inside the animal's body.
OC
Water that an animal drinks to keep their body healthy is permanently removed from the hydrologic cycle.
OD
When an animal digs a burrow, it disrupts the environment and stops water from evaporating in that area.
Answer:
When an animal breathes out, water vapor from inside the animal's lungs is released into the air.
Explanation:
The hydrologic cycle is the cycle of water movement throughout the environment. A is the only only one that "recycles" water;
What is chemical energy?
A.the potential energy in chemical compounds that is waiting to be released
B.energy that is formed or caused by movement
C.the movement of diecrons throughout the world
D. Energy from the son or any other light source
what does inclusion mean
Answer:
It means to be included in something, such as a group or activity.
Explanation:
Answer:
The action or state of including or of being included within a group or structure
OR
The practice or policy of providing equal access to opportunities and resources for people who might otherwise be excluded or marginalized, such as those who have physical or mental disabilities and members of other minority groups.
Explanation:
As you walk up a mountain air pressure?
1. increases
2. decreases
3. remains the same
Answer:
decreases
Explanation:
Answer:
Decreases
Explanation:
There is less gas molecules and the air gets thinner the higher up you go
What do you think is the primary reason why the Unionid mussel population declined whenever there is a dramatic increase in the Zebra mussel population?
Answer:
When the Zebra arrived they ate all the food so the Unionid mussels declined as they died from the lack of food. Causing the Zebra Zebra numbers to increase and Unionid numbers to decline.
When red copper wire is heated on a Bunsen burner flame, the surface of the copper turns black. The wrong statement below is
A. The surface of the red copper wire turns black because copper oxide
is formed.
B. The surface of the red copper wire turns black because copper is
reduced.
C. When the copper wire that has turned black is placed in dilute
sulphuric acid, blue colour can be seen in the solution
D. Mass is increased after the copper wire has turned black
Answer:
I think d is wrong statement
write an Argument for people of westfield identifying the reddish brown substance. Plz answer this is due tomorrow!!
Answer:
The reddish-brown substance is a different color than the fertilizer, which is white, and the substance that makes up the pipe, which is gray. This means that they cannot be the same substance because they do not have the same properties. The atomic models show that the reddish-brown substance is made up of different repeating groups of atoms than the fertilizer and the pipe substance. The difference in atoms caused the difference in properties.
Explanation:
lul
People of westfield identifying the reddish brown substance and that substance is rust i.e. iron oxide.
What is rust?Rust is a chemical compound which is formed by the oxidation reaction between iron and oxygen for the formation of iron oxide.
People of westfield observed the reddish brown color in the water, that is the rust compound which is obtained by the chemical reaction occur between the iron pipes and the compound present in the fertilizers that are present in water.
Hence, the reddish brown substance in rust.
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I NEED HELP PLEASE IM STUCK
How can the National Weather service predict a hurricane? Does a hurricane affect us in the North MS area?
Answer:
Forecasters use satellite data to estimate characteristics of a storm, including the location of its center, its past motion (within 6-12 hours), and its intensity (maximum wind speed). Atlantic and Pacific Geostationary (GOES) satellites can continuously observe hurricanes from their formation to dissipation.
Which level below contains the most limited number of organisms?
Genus
Order
Phylum
Kingdom
Which of the following best explains why bonds form between atoms?
A. Because the energy is at the minimum.
B. Because of the attractive forces between the nucleus of one atom and the electrons of the
atom.
other
C. Because atoms like to share electrons, which results in a stable system.
D. Because forming a bond fills up the valence shell of the atom giving a full octet.
19 Does ona moleculo of u
Answer:
D
Explanation:
I believe the answer is D because atoms are always seeking to fill up their outer electron shell/valence shell and want to gain a full octet.
1. What makes a plant vacuole different from an animal vacuole? |
(1 Point)
his
Plant vacuoles are small and animal vácuoles are arge
O Plant vacuoles are specialized such as contractile vacuole
Animal vacuoles store large amounts of water. Plant vacuoles store food
O Plant vacuoles are large and animal vacuoles are small
Answer:
O Plant vacuoles are large and animal vacuoles are small
I hope this helps
Soda ash (sodium carbonate) is widely used in the manufacture of glass. Prior to the environmental movement much of it was produced by the following reaction.
CaCO3 + 2 NaCl → Na2CO3 + CaCl2
Unfortunately, the byproduct calcium chloride is of little use and was dumped into rivers, creating a pollution problem. As a result of the environmental movement, all of these plants closed. Assume that 125g of calcium carbonate (100.09 g/mol) and 125 g of sodium chloride (58.44 g/mol) are allowed to react.
Determine how many grams of useful sodium carbonate (105.99 g/mol) will be produced.
How many grams of useless calcium chloride (110.98 g/mol) will be produced?
You should also determine how many grams of excess reactants are left (indicate which one is the limiting reactant)
Answer:
NaCl is the limiting reactant
18.0g of CaCO3 are in excess
113.4g Na2CO3 are produced
118.7g CaCl2 are produced
Explanation:
To solve this question we need to convert the mass of each reactant to moles in order to find the limitng and excess reactant to find the amount of products that would be produced:
Moles CaCO3:
125g * (1mol / 100.09g) = 1.25 moles
Moles NaCl:
125g * (1mol / 58.44g) = 2.14 moles
For a complete reaction of 2.14 moles of NaCl are required:
2.14 moles NaCl * (1mol CaCO3 / 2 mol NaCl) = 1.07 moles of CaCO3.
As there are 1.25 moles, Calcium carbonate is the excess reactant and NaCl the limiting reactant
The moles of CaCO3 in excess are:
1.25mol - 1.07mol = 0.18mol CaCO3 and the mass is:
0.18mol CaCO3 * (100.09g / mol) = 18.0g of CaCO3 are in excess
The moles of Na2CO3 and CaCl2 produced are:
2.14 moles NaCl * (1mol Na2CO3-1mol CaCl2 / 2 mol NaCl) = 1.07 moles are produced.
The masses are:
1.07 mol Na2CO3 * (105.99g / mol) = 113.4g Na2CO3
1.07 mol CaCl2 * (110.98g / mol) = 118.7g CaCl2
PLEASE HELP ILL DO WHATEVER Bryan is doing a triathlon and you need to calculate his average speed for all three events. He swims 1km in 0.4 hrs. He rides his bike 50km in 1.5hrs and he runs 10km in 0.7 hrs.
Answer:
toda
Explanation:
:todo lo que tienes que hacer es hacer la cosa
Answer:
16.6km/h
Explanation:
Speed is distance/time.
speed for 1st event = 1/0.4 = 2.5km/h
speed for 2nd event = 50/1.5 = 33.3 km/h
speed for 3rd event = 10/0.7 = 14.28 km/h
Average speed = 2.5 + 33.3 + 14.28 /3 = 50/3 = 16.6 km/h
A rock has a mass of 15 grams and a
volume of 3 cm3. What is the density of the
rock?
HINT; The formula for density is:
density =
mass (g)
volume (cm)
A А
B
5 g/cm3
18 g/cm3
45 g/cm3
Answer:
5 g/cm3
Explanation:
Density = mass/volume
density = 15g / 3 cm3 = 5g/cm3
Answer:
3.34 g/cm3
Explanation:
How many moles of gas are in a 35.0 L scuba canister if the temperature of the canister is 27.3 °C and the pressure is 200.8 ATM
Answer:
285.4 moles of gas are in a 35.0 L scuba canister if the temperature of the canister is 27.3 °C and the pressure is 200.8 atm.
Explanation:
An ideal gas is a theoretical gas that is considered to be composed of randomly moving point particles that do not interact with each other. Gases in general are ideal when they are at high temperatures and low pressures.
An ideal gas is characterized by three state variables: absolute pressure (P), volume (V), and absolute temperature (T). The relationship between them constitutes the ideal gas law, an equation that relates the three variables if the amount of substance, number of moles n, remains constant and where R is the molar constant of the gases:
P * V = n * R * T
In this case:
P= 200.8 atmV= 35 Ln=?R= 0.082 [tex]\frac{atm*L}{mol* K}[/tex]T= 27.3 C= 300.3 K (being O C= 273 K)Replacing:
200.8 atm* 35 L= n* 0.082[tex]\frac{atm*L}{mol* K}[/tex] * 300.3 K
Solving:
[tex]n=\frac{200.8 atm* 35 L}{0.082\frac{atm*L}{mol* K} * 300.3 K}[/tex]
n= 285.4 moles
285.4 moles of gas are in a 35.0 L scuba canister if the temperature of the canister is 27.3 °C and the pressure is 200.8 atm.
4. The radius of a hydrogen atom is 37 pm (1pm 10"m). How many hydrogen atoms lined up side to side would it take to make 1.00 inch? (Hint start with 1.00 inch)
Answer:
V = 4/3 * 3.1416 * (37x10-10)3
V = 2.12x10-25 cm3
d = m/V
d = 1.67x10-24 / 2.12x10-25 = 7.87 g/cm3
The difference in temperature, let's convert F to ºC:
ºC = -80-32/1.8 = -62.22 ºC
dT = -92.6 + 62.2 = -30.4 ºC
The number of hydrogen atoms lined up side to side to make 1.00 inch is equal to 3.43 × 10⁷ atoms when the radius of one H-atom is 37 pm.
What is the radius of a hydrogen atom?The atomic radius of a hydrogen atom is the distance between the center of the nucleus to the boundary of the electron that surrounds it.
Given, the radius of the hydrogen atom = 37pm
Then the diameter of the hydrogen atom = 37 + 37 = 74 pm
We know that 1 pm = 10⁻¹¹ m
Then the diameter of the one H - atom = 74 × 10⁻¹¹ m
The value of 1 m = 100 cm then the diameter of H-atom = 74 × 10⁻⁹ cm
As we know, the value of one inch = 2.52 cm
So, if 74 × 10⁻⁹ cm length takes H-atom = 1
Then, 2.52 cm would take hydrogen atoms = 2.52/ 74 × 10⁻⁹ = 3.43 × 10⁷
Therefore, 3.43 × 10⁷ hydrogen atoms lined up side to side to make 1.00 inch.
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What geologic processes helped to form gold ore, oil, and aquifers?
No single geologic process did all those things. Gold is an element, a heavy element, so it accumulates in seams of hard rocks, quartz being most common. It accumulates over thousands of year
Lode gold deposits are formed when gold-laden water in the Earth's shallow crust is heated by magma-molten rock. In the rocks of active volcanoes, sulfur-rich hydrothermal-hot water-fluids form gold ores.
What is an ore?Ores are naturally occurring rocks that contain metals or metal compounds in sufficient quantities to make extraction worthwhile.
The method used to extract a given metal from its ore is determined by the metal's reactivity and thus the stability of the ore.
Gold deposits are formed when gold-laden water in the Earth's shallow crust is heated by magma-molten rock. In the rocks of active volcanoes, sulfur-rich hydrothermal-hot water-fluids form gold ores.
Over millions of years, under extreme pressure and heat, the remains of these organisms transformed into what we now call fossil fuels such as oils.
Aquifers are the natural accumulation of runoff and precipitation, similar to a below-ground sponge. This runoff then percolates into crevices between rocks, silt, and other material beneath the surface.
Thus, these are some of the geologic processes helped to form gold ore, oil, and aquifers.
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What tool is also known as a "turner"
How does heat transfer through conduction?
from the warm object to the cool object
D) from the cool object to the warm object
from the warm object into the air
from the air to the cool object
Answer:
from the warm object to the cool object
Explanation:
Think of heat as a straight line, and the warmer the object the higher its gradient. Now, if you have cold object is lower in heat energy, the heat energy from the warm object will go down the gradient to the cool object. Note, in conduction, there must a contact between the two objects.