Answer:
a substance which when dissolved with water makes H+ ions
why do most leaves appear green
Answer:
So, plants and their leaves look green because the “special pair” of chlorophyll molecules uses the red end of the visible light spectrum to power reactions inside each cell. The unused green light is reflected from the leaf and we see that light.
Explanation:
in simpler words chlorophyll gives them thier green color
Brain storm 7-10 ways that the water molecules have been either put to good use or violated on planet Earth
Answer:
Find the list below.
Explanation:
Good Use
1. Manufacture of substances: Virtually all manufactured substances incorporate water during their production.
2. Provision of electricity: Water in dams have been channeled to provide thermal energy.
3. Provision of transportation: Ships, boats, and canoes provide a means of transporting humans and goods to other places using water as a medium.
4. Provision of recreation: Swimming in pools are recreational activities.
5. Cleaning surfaces and the environment: Dust and other debris are removed from our homes and environments with the help of water.
6. Provision of food: The fishes obtained from water bodies serve as a food source.
Bad Use
1. Refuse dumping ground: Most industries and homes channel waste products into water bodies and this can be dangerous to aquatic lives.
2. Channels for oil spillage: Oil spillage is another environmental hazard caused by humans on water bodies.
A(n)_______ contains two or more substances that are not chemically combined. (pic down below)
What color offspring did you get when you crossed a brown "BB" rabbit to a white "bb" rabbit?
Answer:
Bb rabbit
Explanation:
In an ecosystem , when a brown "BB" rabbit is crossed to a white "bb" rabbit offsprings with genotype Bb are produced.
What is an ecosystem?Ecosystem is defined as a system which consists of all living organisms and the physical components with which the living beings interact. The abiotic and biotic components are linked to each other through nutrient cycles and flow of energy.
Energy enters the system through the process of photosynthesis .Animals play an important role in transfer of energy as they feed on each other.As a result of this transfer of matter and energy takes place through the system .Living organisms also influence the quantity of biomass present.By decomposition of dead plants and animals by microbes nutrients are released back in to the soil.
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How do sedimentary rocks form on Earth's surface?
A
in vertical stripes
B
with no clear pattern
с
in horizontal layers
D
in a crisscross pattern
nnAnswer:
Explanation:
Answer:
C
Explanation:
Do you think thermal expansion affects all states of matter or just the solid? Explain your thinking.
Answer:
All three states of matter (solid, liquid and gas) expand when heated. The atoms themselves do not expand, but the volume they take up does.
When a solid is heated, its atoms vibrate faster about their fixed points. The relative increase in the size of solids when heated is therefore small. Metal railway tracks have small gaps so that when the sun heats them, the tracks expand into these gaps and don’t buckle.
Liquids expand for the same reason, but because the bonds between separate molecules are usually less tight they expand more than solids. This is the principle behind liquid-in-glass thermometers. An increase in temperature results in the expansion of the liquid which means it rises up the glass.
Molecules within gases are further apart and weakly attracted to each other. Heat causes the molecules to move faster, (heat energy is converted to kinetic energy) which means that the volume of a gas increases more than the volume of a solid or liquid.
However, gases that are contained in a fixed volume cannot expand - and so increases in temperature result in increases in pressure.:
What type of rock is formed when mineral-rich water seeps through the
sediments and glues, or cements together?*
A) Metamorphic rock
О
B) Igneous rock
C) Sedimentary rock
D) Volcanic rock
...clutching am I.Sedimentary
Ecosystems are constantly _______________ (changing, remain the same) in the ________________ (same, different) ways over time.
Answer:
changing
different
Explanation:
What type of elements are in s-block
Explain what the periodic table is and how it's organized
Answer:
The periodic table is a set of elements organized by their atomic number, from lowest (hydrogen 1) to highest (oganesson 118). That number is the amount of protons in the nucleus of an atom of the element. The table is split into three groups of elements (metals, nonmetals and metalloids). As you go down the table the elements are more reactive.
Explanation:
^^
1. Write the chemical formula for slacked lime
2. Give the molecular and structural formulae of ethane
Solve both plz and helpppp me
Answer:
cl+ms=ClMs
Explanation:
just add them together it aint right btw
Two balloons are given an electrostatic charge by rubbing them with a wool cloth. Which observation provides evidence of the force that the balloons exert on each other over a distance because of their charge?
Answer:
C. Moving Balloon 1 can make Balloon 2 move without the balloons touching.
Explanation:
When two balloons are rubbed with a wool cloth, they get electrostatic charge and both become negatively charged.
If both balloons will be place close together, balloon 1 will push the balloon 2 far from itself without touching it as they both are negatively charged and things with same charges repel each other.
Hence, the correct answer is "C. Moving Balloon 1 can make Balloon 2 move without the balloons touching."
Calculate the mass of magnesium oxide that is produced when 64 g of magnesium is combined with 1.32 g of oxygen
Plsss help! worth so many points
Answer:
True
Explanation:
Brass is an alloy made from copper and zinc. Unlike pure metals, most alloys do not have a single melting point, but a melting range during which the material is a mixture of solid and liquid phases (a slush).
Brass is a mixture of the elements of copper and zinc.
hope it helps!
Which of the following is not a monoatomic ion?
a. ClO-
b. Na+
c. Ca2+
d. Cl-
Answer:
wag kayo mag sagot bastos tong tao nato
When you name a binary compound, you have to add____ to the ending of the second element in the compound.
A) -ate
B) -ide
Answer:
B - ide
Explanation:
If you travel at 10m/s how much time would it take to travel a distance of 542 meters?
Answer:
The answer is 54.2 seconds
Explanation:
If you divide 542 by 10 you get 54.2 which is then labeled as seconds.
How can global warming and climate change be addressed to prevent these extreme conditions.
Plzzzzzzzz helppppppop
Answer:
you can ride a bus, ride a bike, or walk to prevent greenhouse gasses from entering the atmosphere causing global warming and climate change
Explanation:
Answer:
One way that can be very helpful is finding a way to capture carbon and bad fumes from the atmosphere which Elon Musk is offering 100 million dollars to whoever can find a way to do it !
Explanation:
The elements with 8 electrons in an outer 'd' subshell belong to Group*
11
9
8
10
Answer:
yftcwertyuiokjbvchff
Explanation:
The elements with 8 electrons in an outer 'd' subshell belong to Group 8. Therefore, option C is correct.
What is periodic table ?In periodic table there is an arrangement of chemical element which are arranging in row and column called as group and period. This arrangement of an chemical element is according to their atomic number.
It is known as the periodic table because of the way the elements are arranged. It is widely used in chemistry, physics, and other sciences.
The elements are listed on the periodic table in order from lightest, or smallest, to heaviest, or biggest. The number in the table denotes this number of protons. The elements with 8 electrons in an outer 'd' subshell belong to Group 8.
Thus, option C is correct.
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What kind of machine allows a single sailor to turn an entire ship with the ship's wheel, and how does it work?
Answer:
The ship's wheel is an example of a wheel and axle. It creates a mechanical advantage for the sailor because she can apply a small force over a large distance by turning the big ship's wheel.
(please mark brainliest if it's correct <33)
Mintu needs to determine the missing ecosystem in the set.
intertidal zone, open ocean, ________, ________
Which ecosystems best complete the set?
A. wetland, stream
B. neritic zone, wetland
C. stream, coral reef
D. coral reef, neritic zone
Hello There! I think the answer you are looking for is: A, Wetland and Stream :)
Have a nice day! :D
Please help due today!
Answer:
It's the first answer choice for sulfur and the second answer choice for magnesium I believe
In naming the compound PCl5, the prefix used with the second element is ____________________.
Answer:
[tex]\boxed {\boxed {\sf Hepta}}[/tex]
Explanation:
We are given the formula:
[tex]PCl_5[/tex]
This is a molecular formula, because it contains nonmetals.
1. Name the first element
The first element is phosphorous (P). Since this is the first element and there is only one, we don't need a prefix.
Phosphorous2. Second element
The second element is chlorine (Cl). It has a subscript of 5, so we must add the prefix of hepta-.
Phosphorous heptachlorineAdd the ending of -ide.
Phosphorous heptachlorideThe prefix used for the second element is hepta. The compound name is phosphorous heptachloride.
Which of the following words states what the arrow means in a chemical equation. A. Destroys B. Produces C. Yields D. Both b and c
Answer:
Terms in this set (26) What do the formulas, arrow, and plus signs in a chemical equation tell you? Elements and compounds involved in the reaction, the arrow means "yields" and points to products, and the plus sign indicate two or more reactants or products.
Explanation:
How many moles of C6H1206 are consumed if 6 moles of O2 are consumed?
Answer:
1 mole
Explanation:
To answer the following question we must use the formula for aerobic respiration :
C6H12O6 + 6O2 -> 6CO2 + 6H2O
Looking at this equation, you can see molar ratio between C₆H₁₂O₆ and O₂ is one to six. Meaning that if six moles of oxygen are devoured, one mole of glucose will be eaten.
The most penetrating form of radiation is __ radiation.
a. alpha
b. beta
c. positron
d. gamma
Answer: gamma. it is extremely deadly to living tissue
Explanation:
Can someone please help me with this, ill give you a heart, a 5 star rating, and the brainliest answer!
If I have 7.7 moles of gas at a pressure of 9.12 kPa and a temperature of 56 °C,
what is the volume of the container that the gas is in?
Answer:
C
Explanation:
n= 7.7mol
P= 9120pa
T = 329.15K
PV=nRT
V= nRT/P
V= (7.7×8.314×329.15)/9120
V= 2.308meter cubic
V= 2308L
How does temperature relate to density? A- As temperature increases density increases. B- As temperature decreases density decreases. C- As temperature decreases density increases. D- Temperature does not change density.
Answer:
The answer is c
Explanation:
I need help with question 5 whoever helps could get Brainlest or extra credit