Answer:
Heat
Explanation:
What human actions contributed to the nutrient pollution of Lake Okeechobee?
PLZ HELP MEEEEEEEEEEEEEEEE I BEG YOU
Answer:
These trends were attributed to both the increased external loads and to a reduction in the lake sediment's ability to assimilate nutrients from the water column. The main sources of external nutrient inputs are animal waste and fertilizers applied to food and forage crops.
help please asap. chem sucks
I'm assuming that C is carbon.
[tex]4.590 \: mol \: c \times \frac{12.01 \:g \: c}{1 \: mol \: c} [/tex]
55.1259 g of C
how many molecules of water are produced when 3.14 grams of ammonium nitrate are decomposed
Answer:
See the last entry
Explanation:
Remark
Ammonium Nitrate decomposes as follows.
NH4NO3 → N2O + 2H2O
If this does not agree with the reaction you have, let me know.
Step One
Find the molecular Mass of Ammonium Nitrate.
N = 1 * 14 = 14
H = 1 * 3 = 3
N = 1 * 14 14
O3 = 3*16 = 48
Molar Mass =69
Note: the masses used are approximate. Every periodic table is different. When you answer this question use the masses on your periodic table. My numbers are just guides.
Step Two
Find the number of mols in Ammonium Nitrate.
Formula
mols = given mass / molar mass
Givens
given mass = 3.14
Molar Mass = 69
mols = 3.14 / 69
mols = 0.0455
Step 3
moles of water.
1 mol of Ammonium Nitrate = 2 mols of water
0.0455 mols of Ammonium Nitrate = x mols of water
x = 2* 0.0455 mols of water.
x = 0.091 mols of water
Step 4
Find the molecules of water.
1 mol of water = 6.02*10^23 molecules of water
0.091 mol water= x
x = 0.091 * 6.02*10^23
x = 5.48 * 10^23
How many atoms are in 100g H2O ?
Answer:11
explain
: cause i think it is
help, with both number 6 and 7, be sure of your answer please, first one to aanswer gets brainliest!
Answer:
6. Mutalism
7. Commensalism
Explanation:
6- Both species benefit = (mutualism).
7- Commensalism is an association between two organisms in which one benefits and the other derives neither benefit nor harm.
Answer:
6: C. Parasitism
7: B. Commensalism
Explanation:
6: Here the flea gets its nutrients from the mouse's blood and the flea benifits from the expense of the mouse.
7: Commensalism is a type of relationship between two living organisms in which one organism benefits from the other without harming it
Activity 7 Let's Think First
Directions: Below are possible situations during an earthquake. Encircle the letter of the appropriate action.
1. If you are outside of your house, move away from the buildings.
A. I will do it
B. I will just run anywhere.
2. If you are inside your house, get cover under a table.
A. I will do it
B. I will not do it
3. If you are in a moving car, what will you say to the driver?
A. Just keep driving.
B. Please stop.
4. Drop to the ground and protect your head.
A. I will do it
B. I will not think about it.
5. Prepare a disaster emergency kit beforehand.
A. I will do it
B. I will not do it.
A cold can of soda is taken out of the refrigerator. It slowly warms up until it is at room temperature. Once the soda has warms up, it has more thermal energy than it had in the refrigerator. Where did this additional thermal energy come from?
Answer:
See explanation
Explanation:
We know that the thermal energy of a substance largely depends on the temperature of the body. This implies that the hotter a substance is, the greater its thermal energy and vice versa.
When you bring a cold can of soda out of the refrigerator, the molecules of air at room temperature gradually loose energy to the can and condense around it. This transfers thermal energy from the air particles to the molecules in the cold can of soda and the soda warms up pretty soon!
name the stages of the water cycle
Answer:
They are evaporation, condensation, precipitation and collection
1. Which of the following
equalities is false?
A. 1 kilogram = 100 meters
B. 50 milliliters = 5 centiliters
C. 3 grams = 0.003 milligrams
D. 70 hectometers = 7,000 decimeters
Number the steps in the correct order to show how ice changes into gas. __ The molecules gain enough kinetic energy to leave their solid form. __ The water becomes liquid and gets hotter. __ Ice is heated and the molecules speed up __ The molecules leave their liquid form and enter the air as a gas. __ Ice molecules vibrate in a fixed place.
Answer: Please find answer in explanation column
Explanation:
Numbering the steps in the correct order to show how ice changes into gas, we have that
1.Ice molecules vibrate in a fixed place.
2. Ice is heated and the molecules speed up
3. The molecules gain enough kinetic energy to leave their solid form.
4.The water becomes liquid and gets hotter.
5. The molecules leave their liquid form and enter the air as a gas.
Ice is the solid form of water which cannot freely move around in this form so it vibrates about its fixed position.When heated,its molecules acquire energy and its vibration speeds up causing it to overcome its binding forces (that makes it vibrate about a fixed position) and becomes mobile as it leaves its solid form to acquire a liquid state. With continuous heating, the liquid gets hotter making the molecules vibrate more rapidly, spread out and move freely at high speeds to form Water vapour - The gaseous state of water.
What is known as the downhill movements of masses of rock and soil?
A. Mass wasting
B. weathering
c. giant erosions
Answer:
b
Explanation:
Answer:
Gravity drives all mass wasting.
Explanation:
HELP NEEDED
How many nanoliters are in 1 liter. Show work
1 000 000 000 nanoliters
How many molecules are in 0.25 mole of CO?
1.5 x 10 to 23rd power
QUESTION FOR THE GIRLS!!!!
What do most girls look for in a guy?
Looks?
Height?
Attitude?
Explanation:
The right answer is Look .........
Certain females may only love a male for his looks and money.
Certain females may love a male for his personality.
Certain females may love a male depending on his height.
That's all I know.
Can someone help-
Not number 9)
Answer:
Metamorphosis
Explanation:
Complete metamorphosis occurs through four stages: egg, larva, pupa, and adult. The incomplete metamorphosis occurs
Help I really help on this
Need help matching them with correct formula
Answer:
Here you go I hope it helped you! :) good luck!
An ionic bond forms between what two types of atoms?
An element with atomic number 18 is a noble gas.Into which family you shall place elements with atomic number 17 and 19 and why?
Answer:
Explanation:
An element with atomic number 18 is a noble gas.
The element with atomic number 19 will have one extra electron so it can donate one electron or shed one electron to attain noble gas configuration .
It tends to shed one electron to become positively charged ion . Hence they are electro-positive elements .
Similarly the element with atomic number 17 will have one short electron so it can gain one electron to attain noble gas configuration .
They tend to gain one electron to become negatively charged ion . Hence they are electro-negative elements . They have high electronegativity .
Boyles Law-
Variables that change:
Variables that remain constant:
Charles Law-
Variables that change:
Variables that remain constant:
Answer:
Boyles Law-
Variables that change: volume and pressure
Variables that remain constant: Temperature
Charles Law-
Variables that change: volume and temperature
Variables that remain constant: pressure
Explanation:
When energy is released by the pack, what happens to the energy of the surroundings (outside the pack)?
a. The energy increases
b. The energy decreases
c. The energy stays the same
Answer:
a
Explanation:
i hope that's correct
The energy of the surroundings (outside the pack) will:
a. The energy increases, when energy is released.
Energy in the surroundings:Energy is delivered to create bonds, which is the reason the enthalpy change for it is positive to break bonds. Energy is expected to break bonds. Particles are a lot more joyful when they are "wedded" and discharge energy since it is simpler and more steady to be seeing someone.
When energy is released, the energy in the surroundings will increase.
Thus, option a is correct.
Find more information about Energy here:
brainly.com/question/25959744
Which statement best explains a way in which a cell gets rid of wastes?
Answer:
I would say B but you don't have to take my word for it
Answer:
D
Explanation:
Help ASAP I will mark brainliest to the correct answer!!!!✨✨✨
Answer:
1180.3 km
Explanation:
Not sure, but I think you would divide it.
3541 km ÷ 3 hrs = 1180.3 km
Hope this helps, thank you !!
How can you increase reaction rate in the forward direction? Chose all that
apply
Answer:
Sorry my task time about to run out : (
Explanation:
define a shadow plz help
Answer:
A shadow is that thing that follows you everywhere when the sun is out. It's creepy!
Explanation: Hope I helped!
Answer:
A shadow is a dark form that you cannot touch, hear, feel, or taste. It's simply formed when an object blocks a source of light.
___________________is the rate that an object moves in a certain direction. Question 3 options:
Speed
Displacement
Direction
Velocity
Answer: Velocity
Explanation:
i just took the quiz for k12
Velocity is the rate at that an object moves in a certain direction. The correct option is d.
What is velocity?The directional speed of an item in motion, as measured by a specific unit of time and observed from a certain point of reference, is what is referred to as velocity. A vector is a velocity. It comprises both magnitude and direction.
The size of velocity is speed. In still air, a particle gravitationally settles and quickly reaches its terminal velocity. The term "settling velocity" refers to a particle's final speed in a still fluid (also known as the "sedimentation velocity").
The particle settling velocity in the foreshore region plays a significant role in understanding fluctuations in the hydraulic regime and interactions between sediment and fluid in the surf zone.
Therefore, the correct option is d, Velocity.
To learn more about Velocity, refer to the link:
https://brainly.com/question/18084516
#SPJ6
Solid iron pellets are heated, melted and drawn into wires. This is an example of a chemical reaction
True
False
Answer:
false
Explanation:
It is a physical reaction because it is being heated.
Answer:
False
Explanation:
Just because the iron was melted into wires does not mean that it isn't iron. It is still iron just in a different form.
find the moler mass of P2S3
Answer:
158.2 g/mol
Explanation:
What the difference between the tundra and the coniferous forest
Answer:
Differences in Plant Life
The taiga has a thick forest of conifers such as pine and spruce, while in the tundra trees are absent completely. This is due in part to the lack of water available in the tundra, but also is a result of permafrost.
Explanation:
Fill in the blank with the term that best completes each sentence. During the life cycle of a seedless plant, a sporophyte releases . When spores land, they grow into gametophytes. One gametophyte produces sperm cells that fertilize the cells of another gametophyte, forming a . This then grows into a sporophyte.
Answer:
spores
egg
zygote
Explanation:
i think this is right
Answer:
1) spores
2) egg
3) zygote
Explanation:
hope this helps :)