Answer:
sub for NA-
Explanation:
plss give brainliest
Answer:
Explanation:
Na-1
C-2
H-3
O-2
In H2O, the 2 is called a
Consider the reaction below:
CH4(g)+O2(g)→ CO2(g)+2 H2O(g)
ΔH=−890.4kJ
Calculate the amount of heat (q) produced by the combustion of 3.04 L of methane at 1.52 atm under STP conditions.
Include your sign indicating if heat is absorbed or released.
Answer:
the change in internal energy of the gases is -3.0924 KJ
Explanation:
The computation of the change in internal energy of the gases is as follows;
Given that
Q = -3.1 KJ
= -3100 J
It is negative as the heat is lost from the mixture
And,
W = + 7.6 J
It is positive as the work is done in the mixture
Now we use the following equation
Delat E = Q + W
= -3100 J + 7.6 J
= -3092.4 J
= -3.0924 KJ
Hence, the change in internal energy of the gases is -3.0924 KJ
Can anyone help me with this?
Extension Activity: The Coca-Cola Company has been getting angry letters from drinkers of Diet Coke. Because their soda weighs less they feel like they’re getting ripped off. If they pay the same amount for a diet coke it should have the same amount of soda in it. It is your job as manager of customer relations to answer these angry letters.
For homework, write a sample letter to be approved by the company president that contains the following: A scientific explanation of why the Diet coke weighs less and a sentence or two addressing the customer’s concerns that they are getting less soda than in a regular can or bottle. Remember – your next promotion depends on how well you solve problems for the company!
Your sample letter should contain at least five good sentences: at least three for the scientific explanation plus two more addressing the customer’s concerns. Explain the formula for density and how it is measured.
Some numbers that might help you are:
Coke
D1.08 383.7G 355mL
diet coke .096 342G 355mL
Sugar 25.9g
Aspartame 5.1g
water 1
Answer:
in the letter i would put in it that
Did you get our brand or did you get the store brand because the store brand is different from our brand so try our brand.
Explanation:
4. How many moles of molecules are there in 500g of sodium chloride?
a) 5.6 mol b) 8.5 mol c) 0.67 mol d) 3 mol
HEY GUYS???? HELP??? PLEASE
Answer:
b) 8.5 mol
Explanation:
500 g NaCl * 1 mol/ 58.44 g NaCl = 8.5 mol
Comparing your performance in this workout to how you did in the last Yoga workout (4 weeks ago); how did you do? (full sentence response) *
Answer:
i did pretty good yo
Explanation:
What does the author list in the passage?
a
scientists who study electromagnetic radiation
b
different types of electromagnetic spectrums
c
different types of electromagnetic radiation
d
the differences between radio waves and microwave
Answer:
B --> Different types of electromagnetic radiation
Explanation:
Science tells us that light is the reason we are able to see objects. Without light, we wouldn't be able to ... The electromagnetic spectrum is the range of all types of electromagnetic ... C x-rays. D light.
Answer:
b i think
Explanation:
Please help
I will mark brainlyiest
Answer:
The answer is A. Nickel, zinc, and iron
Explanation:
Pls help me! I rlly need help.
Answer:
c
Explanation:
In order for radiation to transfer heat,
a electromagnetic waves must be transmitted
b objects must be in direct physical contact
c particles must circulate and move in a liquid or gas
d thermal energy must move from cold to hot objects
Answer:
electromagnetic waves must be transmitted
Explanation:
i just did the quize hope this helps
What do you notice about how plants get their energy in a DESERT ECOSYSTEM?
Brainliest will be provided :) first come first serve
cactus plants . desert get energy giving in no watring
Explanation:
cactus plants in desert place
3. What Sl unit would you use to identify the volume of blood in the human body?
A.milligrams B.Liters C.Millimeters D.Pounds
Answer: the answer is B. liters
I think it is the first one.
Answer:
No, it's B.
Explanation:
It is a chemical reaction, but the reason for the lack of change in mass is not because atoms rearrange to form new substances. It's because atoms generally don't lose mass during a chemical reaction, because mass cannot be created or destroyed.
Answer:
it is actually e
because even tho the old atoms turned into new atoms they had the same mass still
hope this helps!
Which model would represent Newton's law of action-reaction? *
A) Toy car rolling down a ramp.
B) Toy rocket being launched.
C) Toy boat floating in the water.
D) Toy tractor being pushed over a hill.
Angelina wants to observe what will happen when two rocks with different masses are pushed down a slide. Angelina puts the two rocks at the top of the slide and pushes each rock with an equal force. Below the slide, Angelina's friend Mary stands to catch the sliding rocks. Based on Newton's law of force and acceleration, what happens to the rocks as they are traveling down the slide?
A) The acceleration of each rock is equal to zero.
B) The rock with the smaller mass has less acceleration than the larger rock.
C) The two rocks have the same acceleration.
D) The rock with the larger mass has less acceleration than the smaller rock.
Answer:
I believe it is D
Explanation:
I think it's D because if something has more mass, it carries more weight, weight slows stuff down. I might be wrong and I am sorry if I am.
Convection currents are liquid fluids that are traveling when there is a change in temperature or density inside the material.
Answer:
90% of people marry there 7th grade love. since u have read this, u will be told good news tonight. if u don't pass this on nine comments your worst week starts now this isn't fake. apparently if u copy and paste this on ten comments in the next ten minutes you will have the best day of your life tomorrow. you will either get kissed or asked out in the next 53 minutes someone will say i love you
Explanation:
What are some examples of how we use Earth’s natural resources?
Each statement best explains why it is more difficult to use coal versus other alternate source of energy except:
1. Coal produces more pollutants in the air.
2. It is more difficult to mine for coal than other minerals.
3. Coals are not commonly used because it is more difficult to burn.
4. Coals are not commonly used because it produces more negative impact to the environment.
Answer:
Coal produces more pollutants in the air.
Explanation:
Each other answer has the words 'more difficult' or 'not commonly used. I think this is right...I won't see my grade for a long time though.... very, truly sorry if it is wrong! :)
On Sunday NASA's SpaceX launched 4 astronauts into space for a mission lasting 5 months. They named their spacecraft RESILIENCE.
In 4-6 sentences explain what the word RESILIENCE means to you. Also, why do you think they named their spacecraft that? Please respond to this prompt in your own words, there is no need to google!
!!DO NOT GOOGLE IT!!
Answer: I think they named it RESILIENCE to point out that it should be resilient to harsh conditions and that it would be able to push through with little damage. when I hear the word resilience I think of strong able to push through. I think of myself of resilient because _________________. Naming the space craft RESILIENCE is smart because the astronauts will know they are safe when they launch.
Explanation:
The weather is warm and dry.
Which change would a cold front bring?
several days of gray skies
rain or thunderstorms
dry air and sunny skies
extended period of rain or snow
Answer:
Thunderstorms and grey clouds
Explanation:
No matter what the weather is before, any type of fronts will always bring the same weather
Please vote for Brainliest and I hope this helps!
Answer: Rain and thunderstorms
Explanation: Cumulonimbus Clouds are produced in cold fronts. (cumulonimbus clouds are clouds that make big storms)
What is the relationship between a front and cloud formation?
Here's a little more info
When conditions are right, two air masses can come together and make a tornado. A humid and warm air mass from the south meets a cold and dry air mass from the north, and the cold air moves under the warm air. This creates a low pressure area, drawing air up and in. The air rotates as it rises, gathering speed and forming a funnel.
Answer:
Cold air is more dense than warm air, so when a warm air mass meets a cold air mass, the cold air ends up below the warm air. Once the air has risen, it cools and clouds can form. Weather fronts can cause clouds to form.
Answer:
Weather fronts can cause clouds to form. Fronts occur when two large masses of air collide at the Earth's surface. Warm fronts produce clouds when warm air replaces cold air by sliding above it.
Explanation:
I NEED AN ANSWER ASAP!!! How is the Earth's layers be compared to a hard boiled egg?
Answer:
The shell represents the crust. The hydrosphere and the biosphere interact with this layer.
Explanation:
The layers, which make up the hard-boiled egg are comparable to the layers, which make up the Earth. Flowing water in the hydrosphere weathers rocks into small pieces, which are eroded and deposited to different locations on Earth.
Answer:
Explanation:
The crust can be compared to the shell of the egg
The white part of the egg could be compared to the mantle
And the yolk represents the core
Hope this helps :)
H2O is an example of what formula?
The Case of the Missing Mass: Students have completed the experiment of combining vinegar and baking soda. They notice that their beginning mass in the video does not match the ending one. Use the equation(below) and the Law of Conservation of Mass to explain why the students have NOT destroyed atoms in their experiment. This is the chemical equation for the experiment:
Explain how plate tectonics are responsible for where we find some of our natural resources.
Most of our natural resources are embedded beneath the subsurface at different depth. These resources could find their way to depths and positions where that can be mined or to surface at divergent plate boundaries.
Divergent plate boundaries marks the positions where the earth's plates move apart and causing uplift. At this boundary, several resources beneath the subsurface may rise as pressure is eased.
Therefore, the presence of certain natural resources could be due to the occurence of plate tectonics.
Learn more : https://brainly.com/question/15687460
On Sunday NASA's SpaceX launched 4 astronauts into space for a mission lasting 5 months. They named their spacecraft RESILIENCE.
In 4-6 sentences explain what the word RESILIENCE means to you. Also, why do you think they named their spacecraft that? Please respond to this prompt in your own words, there is no need to google!
!!DO NOT GOOGLE IT!!
Answer:
resilience means to fight thru or overcome something as the spacecraft was meant to symbolize to let the people know that this machine was built to survive. resilience also means to keep pushing over the limits
Explanation:
Compare and contrast the applications and benefits of circle graphs and bar charts
plzs help
What type of organic compound is used for building cell parts?
Answer:
Carbohydrates
What is the difference between a meteor and a meteorite?
Answer:
When a meteoroid survives a trip through the atmosphere and hits the ground, it's called a meteorite.
Explanation:
When meteoroids enter Earth's atmosphere (or that of another planet, like Mars) at high speed and burn up, the fireballs or “shooting stars” are called meteors. When a meteoroid survives a trip through the atmosphere and hits the ground, it's called a meteorite.
Answer:
hiiii
Explanation:
What makes Earth unique among the terrestrial planets?
Its orbit around the Sun is roughly circular.
It has a core that's made of iron at its center.
It is home to a variety of life-forms.
It is much hotter than all of the other terrestrial planets.
Where in the plot pattern do we see the tension peak?
A- Climax
B- Exposition
C- Conclusion
D- Rising action i really need help
Answer:
the climax
Explanation:
the climax is where the tension builds up creating a good or exciting plot i hope this helps!