Answer: this seems like YOU need to answer on ur own.
Explanation:
Which of the following reactions best illustrates the Law of Conservation of Matter?
A.) H2O2H2O + O2
B.) Na + CuS Na2S + 2Cu
C.) K + AgCl KCl + Ag
D.) NaOH + 2HCl NaCl + H2O
Answer:
answer A..) H2O2HO+O2
How do matter and energy move through an ecosystem?
My scientific explanation is:
Your answer should include at least 1-2 complete sentences to explain the claim, evidence and reasoning.
Be sure to check your grammar and spelling.
Use the Sentence Starter to help you:
Matter and energy move through an ecosystem by...
Answer:
Decomposers (organisms that break down dead producers and consumers and organic waste) obtain the energy they need to live from chemical bonds of the dead and waste-matter. The energy is transferred both to the decomposer (for growth and development) and to the ecosystem (as heat energy)
Explanation:
There are 3 different answers you can pick from.
no coefficient
2
3
Destiny is a physical property of matter and can be used to classify substance, Destiny
is calculated by which of the following
A. d =v/m
B.d =m/v
C.d =m/w
D. d =w/v
A scientist works for a drug company and runs experiments on their product with results that favor the company's product. This is an example of_________.
(A.) conflict of interest and confirmation bias.
(B.) getting the inside scoop about a product, buying company stock, and making a lot of money.
(C.) sound and reliable science practices.
(D.) all the above.
"A scientist works for a drug company and runs experiments on their product with results that favor the company's product. This is an example of conflict of interest and confirmation bias." Thus, option A is correct.
What is a conflict of interest?Conflict of interest has been defined as the situational circumstances where the individual or the company tries to get benefitted from the actions and behaviors that present the outcomes in favor of them. This includes manipulative strategies and steps.
The scientist manipulates drug experiments and their products to favor the company and shows biased investigations and methods that benefit the company by profiting and getting something from the official work.
Therefore, option A. conflict of interest is seen in the case.
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HELP PLS THIS IS DUE IN 15 MINUTES PLS PLS PLS!!! I WILL MARK BRAINLIEST IWTH THE BEST ANSWER!!!
List 2 Physical Changes & 2 Chemical Changes and explain why.
Answer:
A chemical change results from a chemical reaction, while a physical change is when matter changes forms but not chemical identity. Examples of chemical changes are burning, cooking, rusting, and rotting. Examples of physical changes are boiling, melting, freezing, and shredding.
Explanation:
Answer:
A chemical change results from a chemical reaction, while a physical change is when matter changes forms but not chemical identity.
physical changes are boiling, melting, freezing, and shredding.
Explanation:
Which best categorizes the different types of air.
a
Both warm and cool air have low pressure
b
Warm air has high pressure, cool air has low pressure.
c
Warm air has low pressure, cool air has high pressure
d
Both warm and cool air have high pressure
Answer:
B.
Explanation:
I need your help.
What is the basis of an organic molecule?
(A). The basic structure is the iron atom.
(B). The basic structure is the potassium atom.
(C). The basic structure is the carbon atom.
(D). The basic structure is a carbon monoxide molecule.
Answer:
I think c
Explanation:
Answer: C
Explanation: Its C because Life is based on carbon, organic chemistry studies compounds in which carbon is a central element. The properties of carbon make it the backbone of the organic molecules which form living matter. Carbon is a such a versatile element because it can form four covalent bonds.
Before you can solve a problem, the first thing you have to do is Question 2 options:
define the problem
build a prototype
design your solution
test your solution
A student used a portable electric drill to remove screws from a broken wooden table. He noticed that the screws holding the table together were warm to the touch after being removed from the wood. Which statement best explains this phenomenon?
A:Electrical energy from the drill was converted into chemical energy due to conductivity.
B:The process of removing the screw concentrated the thermal energy that was already present in the wood
Answer:
A.
Electricity can travel through metal, such as the screws, creating a conductor.
Please Help Me!!
Zn + 2HCl --> ZnCl2 + H2 Which of the following provides the best evidence that this reaction follows the law of conservation of mass?
What physical property of mercury makes it well suited for use in a thermometer?
Answer:
because mercury has low melting point
Explanation:
Answer:
low melting point
Explanation:
What is the process of making a nail magnetic called?
Answer:
Making A Iron Nail
Explanation:
Could be wrong
jenny turned on the fan in her bedroom. what energy transformation took place when she turned on the fan
Answer:
Kinetic energy
Explanation:
Kinetic energy is energy when something is in motion
AHHHH PLS HELP ME I BEG ILL DO ANYTHING
When going from a slower medium to a faster medium, light is bent _____.
A. toward the normal line
B. away from the normal line
Answer:
B. away from the normal line
Explanation:
"when light travels faster, it bends away from the normal, since it is entering a less dense medium. when light travels slower, it bends towards the normal, since it is entering a denser medium (Socratic)."
I hope this helps! :)))
Answer:
b. away from the normal line :) hope this helps <3
Explanation:
An increase in which of the following does not increase the rate of a chemical reaction?
A. product
B. pressure
C. reactants
D. temperature
Answer:
product
Explanatiion:
Given the amount of work required to move a box 15 meters across the floor is 75J. What is the force that is needed?
a. 5 N
b. 25 N
c. 30 N
d. 2 N
1. reaction that releases heat
outer ear
2. flow of electrons through a material toward a positive charge
compression
3. build up of electrons in a material
static electricity
4. part of the ear is responsible for capturing sound waves
exothermic
5. part of the sound wave where the molecules are pressed closely together
current electricity
Choose all the answers that apply.
The sun _____.
a. creates energy from fission reactions
b. creates energy through fusion reactions
c. transfers heat through radiation
d. is made of hydrogen and helium
e. uses its own mass to create energy
Which of the following is true with regard to sodium and potassium?
A
The both have three outer shell electrons.
B
They both have filled orbitals.
C
They tend to form anions.
D
They tend to form cations.
Sodium and potassium tend to form cations. Therefore, the correct option is option D among all the given options.
What is ions?An atom or molecule is said to be an ion if a number of the valence electrons have been acquired or lost, providing it a net negative or positive electrical charge. In other terms, a chemical species has an unbalanced ratio of protons (positive charge particles) to electrons (negatively charged particles).
Because there are more protons than electrons in a given species, cations are ions with a net positive charge. The equation for a cation is denoted by a superscript that includes the amount of the charge and the symbol "+" after the formula. If present, a number comes before the plus sign. If there is simply a "+" there, the fee is +1. Sodium and potassium tend to form cations.
Therefore, the correct option is option D.
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How does the Coriolis Effect cause hurricanes to form?
a
The Coriolis Effect causes the warm ocean waters to heat up.
b
The Coriolis Effect causes air masses to deflect, or curve. That deflected air can cause hurricanes to form.
c
The Coriolis Effect causes air to swirl upwards into the atmosphere.
Answer: b
Explanation: t affects weather patterns, it affects ocean currents, and it even affects air travel. As important as the Coriolis Effect is, many have not heard about it, and even fewer understand it. In simple terms, the Coriolis Effect makes things (like planes or currents of air) traveling long distances around the Earth appear to move at a curve as opposed to a straight line.
It’s a pretty weird phenomenon, but the cause is simple: Different parts of the Earth move at different speeds.
Answer:
b
Explanation:
What is an important characteristic for chemicals released into the environment used to seed clouds?
Answer:
the rain
Explanation:
Explain how scientist learned about the magnetic poles of the Earth.
Answer:
They learned because they keeped studying they would never give up and if they found something new or interesting they may have just studied it more.
Explanation:
Answer:
probably when something like a compass was accidentally invented Explanation:
Which arrow or arrows represent reactions that demonstrate a conservation of mass and energy? Explain your answer
Answer:
i need a picture of ur question
Explanation:
determine the volume of a cereal box that has a mass of 549.98 g and density of 1.69 g/cm3
Answer:
I used a calculator to calculate the volume:
the volume formula is V =m
/ρ
the answer is 325.43195266272 cubic meter, or about 325.43
Explanation:
The cylindrical part of an arched thrall colum has a height of 325 and a diameter of 30 cm. Find the volume of the cylindrical part of a colum use 3.14 for pi and round youre answer to the nearest cubic centimeter if needed
Answer:
b
Explanation:
96% on exam. I got it right
What are fossil fuels made from?
a. non-organic material
b. radioactive material
c. harmful poisons
d. organic material
Answer:
D. organic material
Explanation:
Fossil fuels are made of buried remains of plants and animals from millions of years ago.
Answer:
organic material
Explanation:
Isopropyl alcohol is a clear liquid with a density of 0.78 g/cm3. If the same small sphere (with a density of 0.88 g/cm3) is dropped in a beaker of isopropyl alcohol, predict whether the sphere will float or sink?
Plz help ya' girl out!
Label the parts of whatever that is
Plz giving brainliest!
Answer:
BRAINLIEST PLEASE!!!
A = Smooth Endoplasmic Reticulum
B = Vacuole
C = Mitochondria (Plural)
D = Nucleolus
E = Cell Wall
Explanation:
This is obviously a plant cell. Animal cells do not have cell walls(E), and most animal cells will not have a vacuole(B). Smooth Endoplasmic Reticulum: This produces protiens (contains ribosomes) but when looked through a microscope, will appear to be smooth. The vacuole(B) is like a storage for the plant cell, and it helps support the plant cell. This is the reason why plants “droop” when you don’t water them for a long time. Mitochondia (Plural) processes nutrients for the cell. The nucleolus(D) covers the nucleus. It’s main function is to process RNA and combine it with proteins. The cell wall(E) helps support and protect the cell.
determine the volume of a substance given that the density is 2.6 g/mL and its mass 5.5 g
Answer:
I am pretty sure the answer is 10g/cm3 .
Explanation:
