Answer:
pH level varies in water for hydronium and hydroxyl ions. pH level is directly proportional to oo hydroxyl ions where as inversely proportional to the hydronium ions.
Explanation:
Answer:
pH is measured with the pH scale which is also known as universal indicator which is the colour combination of different acid base indicators it will indicate the pH level by different colour coding.
pH level varies in water for hydronium and hydroxyl ions.
pH level is directly proportional to oo hydroxyl ions where as inversely proportional to the hydronium ions.
when the concentration of hydroxyl ion increases PH value also increases but when the concentration of hydronium ion increases PH value decreases.
we can say that in this way PH value is related to hydronium and hydroxyl ions in water.
Explanation:
Which two elements are likely to form a compound that has ionic bonds?
sulfur and hydrogen
nitrogen and oxygen
sodium and chlorine
carbon and oxygen
Explanation:
for having a ionic bond we need great delta X that we see in electropositive atom (Na) and an electronegative atom(F)
A disease caused by the inflammation of mucus membranes inside the bronchial tubes. There are more than 3 million U.S. cases a year.
Inflammation can have causes that aren't due to underlying disease. Examples include injuries such as sprains and strains, overuse, or insect bites.
what will happen? (Newton's 1st Law Egg Drop)
Answer:
dogwater
Explanation:
lalidadida
some students observe four different lab investigations. The students record their observations in a table.
Investigation
Observations
1
A beaker of water is
heated on a hot plate. Bubbles form in
the water, and steam is given off.
2
Oil is added to a beaker of water. Oil forms a layer on top
of the water
3
Sand and iron filings are mixed in a beaker. A magnet is
then used to separate the iron filings from the sand.
4
A piece of chalk is placed in a beaker of vinegar Bubbles
form as a gas is given off.
Which investigation most likely involved a chemical reaction?
Answer:
Number 4 is an example of a chemical reaction
Explanation:
heThe chalk is reacting with the vingear which is creating a new substance. The new substance is the gas that the reaction gives off.
If Enough Thermal energy And change of state, write each sentence.
Write (solid), (liquid), or (gas) to complete each sentence
If enough Thermal energy is added to a liquid, it will change to a
___________
Please explain in simple terms.
Spam = remove
Googling it = Remove
Answer:
If enough thermal energy is added to a liquid lets say cold it will freeze turning it into a solid. they same for a solid if enough thermal energy is added it can turn to a liquid or a gas.
Explanation: Its science.
Answer:
gas
Explanation:
I don't know, just it is gas bc the atoms gain space and move freely and yeah
1. What is the geologic time scale? Explain how the geologic time scale is a model.
2. How many millions of years was the Paleozoic?
3. During what era did the dinosaurs live?
4. During what period where the first early human relatives found?
why did Mendel become decide to become a teacher?
Answer:
he decided to become a teacher because he studied expertise and wanted to teach about early life
Explanation:
Answer:
While Charles Darwin's "The Origin of Species" was published in November 1859, a monastic priest and teacher named Gregor Mendel was in his third year experimenting with pea plants. His final results demonstrated principles of heredity that would eventually evolve into the new disciplines of genetics and molecular biology. His work not only helped solve the mysteries of diseases such as cystic fibrosis, Tay-Sachs disease, sickle cell disease, and hemophilia, it also and lay the foundation for the Human Genome Project.
Explanation:
The distance time graphs for two objects are shown below: look at the picture. Which statement is true? Both objects move at variable speeds. Both objects move at a constant speed. Object A is moving at constant speed but Object B is moving at variable speed. Object A is moving at variable speed but Object B is moving at constant speed.
Can you get this done before 10:40 pls
Answer:
The last statement is correct
Explanation:
If you start with 5.5 liters of hydrogen peroxide (H2O2), how many molecules of oxygen gas (O2) will be produced?
Answer:
2.75 mol O2
Explanation:
2 H2O2 = 2 H2O + O2 is the formula
heres a picture of the work
Ill give brainliest and a 5 star review for the best answer Do you think your town or neighborhood has an ecosystem? If you don’t think so, explain why not. If you do think so, what are the producers, consumers, and decomposers in the ecosystem? What roles do humans play in this ecosystem?
Answer: I do think that neighborhoods are an ecosystem
Explanation: a ecosystem contains living and non-living things, some examples are the people,plants,and pets are living organisms and the houses and the street lamps are non living. Therefore making a neighborhood a ecosystem
ASAP PLLEEASE HURYYYYYYYYYYRRRRRRRRRRRRYY (NO FILES FOR ME NEEDING TO DOWNLAOD PLEASE!)
1.Fill in the blank with the correct term to make the statement true.
During the (day/night)
at the beach, the land cools down
(faster/slower)
than the
(land/ocean).
Because of this, the air over the land is
(Warmer/cooler) than the air over the ocean. The
(More/less)
dense air rises over the ocean and the cooler,
(More/less)
dense air blows in from over the land creating a
(sea/land)
breeze.
2.Which statement is true about winds?
Winds always blow from low to high pressure.
Winds always blow from water to land.
Winds always blow from land to water.
3. Winds always blow from high to low pressure. How do landmasses impact the movement of air and water?
They stop all movement of both air and water.
They speed up the air and water and allow it to pass though.
They change the direction and slow them down.
They slow down the air but speed up the water.
Answer:
1.Fill in the blank with the correct term to make the statement true.
During the (night)
at the beach, the land cools down
(slower)
than the
(ocean).
Because of this, the air over the land is
(Warmer) than the air over the ocean. The
(More)
dense air rises over the ocean and the cooler,
(More)
dense air blows in from over the land creating a
(sea)
breeze.
2.Which statement is true about winds?
Winds always blow from low to high pressure.
true
Winds always blow from water to land.
false
Winds always blow from land to water.
false
3. Winds always blow from high to low pressure. How do landmasses impact the movement of air and water?
They stop all movement of both air and water.
They speed up the air and water and allow it to pass though.
They change the direction and slow them down.
think this is it
They slow down the air but speed up the water.
pt:2
answering the pictures
9- I don know sorry
15-B
16-A
Explanation:
just trying to help LET ME KNOW IF IT'S WORNG
( 15 points to whoever replies quickest no links pls ) a farmer has used a fertiliser containing ammonium nitrate, potassium nitrate and ammonium sulphate on his fields but some may have leached into a nearby river. If a sample of river water was tested, what colour would the flame be if there was fertiliser contamination
If water of the river was tested there would be orange color flame.
What is fertilizer?Millions of tons of air, natural gas, and mined ores are transformed into plant nutrition products based on the three crucial nutrients nitrogen, phosphorus, and potassium by the fertilizer industry.
The process begins by combining nitrogen from the air with hydrogen from natural gas at high temperature and pressure to produce ammonia, which is then used to make nitrogen-based fertilizers, the largest product category. Natural gas is used as a raw material for about 60% of the time, while the remaining 40% is used to power the synthesis process.
The nitric acid created from the ammonia is combined with it to create nitrate fertilizers like ammonium nitrate (AN). Urea can also be made by combining ammonia with liquid carbon dioxide. To create UAN (urea ammonium nitrate) solution, both of these products can be combined with water.
Therefore, If water of the river was tested there would be orange color flame.
To learn more about fertilizers, refer to the link:
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PLEASE HELP!!!!!!!! giving brainlist
Answer:
I can only give the answer for the first page.
Explanation:
1. Thermal energy always moves from hot objects to cold objects.
2. When two states of matter reach the same temperature, it is called thermal equilibrium.
Does an acidic solution contain hydroxide ions? Explain your answer.
Answer:
Yes but there are more hydrogen ions than hydroxide ions.
An acidic solution contains a large concentration of hydronium ions than hydroxide ions. Yes, an acidic solution contains hydroxide ions.
What are hydroxide ions?Hydroxide ions are produced from the ionization of water molecules carrying the positive charge on hydrogen.
A solution contains both the hydroxide OH⁻ and hydronium ions H⁺.
In order to make a solution acidic, a solution must contain more hydronium ions compared to hydroxide ions.
Yes, an acidic solution contains hydroxide ions.
Learn more about hydroxide ions.
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