Answers
Answer:
Explanation:
the first and last one
good luck!Answer: 1 and 4
A clean renewable source is sustainable
Related Questions
Please Please Please Please Please Help Me (please answer this question completely and 1 will friend you and help you with your question.)
How do static charges interact, and how are they released?
Use the sentence starters provided to help you answer the scientific explanation.
Static charges interact by ___________________________.
Static charges are released when ___________________________.
My scientific explanation is:
Your answer should include at least 6 complete sentences to explain the claim, evidence and reasoning.
Be sure to check your grammar and spelling.
Answers
Answer:
Static electricity is a type of energy that is produced by friction.
Explanation:
Static electricity may be the result when there is an imbalance between the negative charges and the positive charges in the surroundings. They are non contact forces. They pull of push without actually touching the body. The charged particles interact by pulling or pushing the uncharged particles.
These charges are released when they come closer to some uncharged or other charged particles like the electrostatic charges. It is the charge build up in an area.
Which is a characteristic of a physical change?
a
The chemical bonds in the substance are unchanged.
b
The change cannot be seen.
c
The molecules all move at the same speed.
d
The substance has reacted with another substance.
Answers
If you have 35 moles of sodium hydroxide (NaOH) in a 5000 mL solution, what is the concentration of the NaOH in the solution?
Answers
Answer:
7 mol.dm^3
Explanation:
formula for calculating concentration: C = n/v
Start by changing 5000ml solution to dm^3 because volume is in dm^3
1 ml = 1cm^3
then from a cm^3 to dm^3 you divide by 1000
5000ml = 5000cm^3
5000÷1000= 5dm^3
c = n/v
= 35/5
= 7mol.dm^3
From which celestial body is a star born?
A. supernova
B. nebula
C. protostar
D. black dwarf
Answers
Answer: B. nebula
Explanation:
Answer:
B. nebula
Explanation:
Birth takes place inside hydrogen-based dust clouds called nebulae.
-TheUnknownScientist
does anyone wanna help me with my question for chemistry [i'll comment the question to you lol someone keeps sending links into my questions]
Answers
Answer:
same I was looking for a question like this I was asking question and someone kept commenting this bitly thing i dont kno I though it was just weird and frustrating lol
Sometimes the number of electrons in an atom changes. These atoms are called what
Answers
Answer:
ions
Explanation:
sort each characteristic according to whether it describes acid, bases, or both.
Answers
Answer:
Acids: react with metals, taste sour
Both: can cause burns, conduct electricity
Basis: react with nonmetals, taste bitter
Explanation:
This is the right answer
Answer:
Acids: react with metals, taste sour
Both: can cause burns, conduct electricity
Basis: react with nonmetals, taste bitter
it's right, I did it.
Which of the following is an example of a physical property?*
the mass
ability to rust
flammability
ability to combust
Answers
Answer: The mass
Explanation: ability to rust, flammability, and ability to combust are chemical properties.
What is FALSE about nitrogen gas and carbondioxide?
1- Both are compounds
2- Both are gases
3- Elements in both substances are non-metals
4- Both are made up of atoms
Answers
Answer: Both are compounds
Explanation:
[tex]\text{N}_{2}[/tex] is an element, not a compound.
how did the idea of what a cell was develop overtime
Answers
Answer:
experiments
Explanation:
I am not sure but heres my take
Answer:
It was only after the invention of electron microscope that the idea developed
Please help I'm not sure what the answers are
Answers
Answer:
An element's mass number (A) is the sum of the number of protons and the number of neutrons. The small contribution of mass from electrons is disregarded in calculating the mass number.
How many mL of a 6.0 M solution of HNO3 would be needed to prepare 300.0 mL of a 0.60 M solution of HNO3?
Answers
Answer:
500mL.
Explanation:
(GIVING BRAINLIEST) Which of the following is a good source of carbohydrates?
pears
meat
eggs
fish
Answers
Answer:
I would choose pear fruits are a good source of carbohydrates hopefully its right sorry if its not
Answer: Fruit
Fruits have a lot of carbohydrates in them :) Hope this helped!
what is the unit for particles of titanium iii oxide
a. Ions
b. Atoms
C: molecules
d. Formula units
Answers
Answer:
d
Explanation:
What is responsible for moving the water to the ground?
Answers
Answer:
Water applied to the surface of a relatively dry soil infiltrates quickly due to the affinity of the soil particles for water. As time passes and the soil becomes wet, the force of gravity becomes the dominant force causing water to move.
Explanation:
Answer:
Gravity
Explanation:
Water applied to the surface of a relatively dry soil infiltrates quickly due to the affinity of the soil particles for water. As time passes and the soil becomes wet, the force of gravity becomes the dominant force causing water to move.
liquids that mix completly are called
Answers
Answer:
Miscible
Explanation:
Mixed completely
Our body is also a good conductor
of electricity because of the
presence of ______.
Please answer it this is my last question on my test i'll give you 20 points to answer?
Answers
Why is it dangerous to have electric appliances near you when you are taking a bath?
Answers
Answer:
Because water conducts electricity, so if an electrical current were to meet the water while you're in there taking a bath, you would essentially be surrounded by a huge conductor.
How does viscosity affect boiling point?
A. Higher viscosity = Lower boiling point
B. Lower viscosity = Higher boiling point
C. Higher viscosity = Higher boiling point
D. Viscosity has no effect on boiling point
Answers
What is the formula mass of the fictitious compound: AB2?
Answers
For a molecule AB, for every 1g of A, you will have 1.14g of B.
For a molecule AB2, for every 1g of A, you will have 2.28g of B.
For a molecule A2B3, for every 1g of A, you will have (1.14x3/2) 1.71g of B.
A shell container is useful for
Answers
here ya goooooooo!!!!!!!!!!!!
Answers
Answer:
Thank youuuuu bestie, you really pulling through
Answer:
yessss
Explanation:
When the water inside a living cell freezes, the ice crystals damage the cell. The wood frog is a unique creature that can survive being frozen. In extremely cold
conditions, the frogs liver produces large amounts of glucose (C6H12O6), which becomes concentrated in the frog's cells. How does the glucose help prevent ice
from forming in the frogs cells?
A)The added glucose dissociates and creates faster moving molecules.
B) The added glucose lowers the vapor pressure relative to the pure solvent.
C) The added glucose requires more energy which warms the frog
D)The added glucose lowers the freezing point of the solution within the frog's cells.
Answers
when was the element copper discovered? Who discovered the element copper?
Answers
The Mesopotamians discovered copper (Cu) in 9000 BC.
Mass = 35g Volume = 7cm3 What is the Density?
Answers
Answer:
5 g/cm^3
Explanation:√3V=1.91293cm
5 The atoms of a certain element each contain 36 protons and 8 valence electrons. Which
statement correctly identifies this element and describes its chemical reactivity? (8.58)
A The element is krypton, Kr, and it is not very reactive.
B The element is chlorine, Cl, and it is highly reactive.
C The element is krypton, Kr, and it is highly reactive.
D The element is chlorine, Cl, and it is not very reactive.
Answers
Answer:
dfdfaxc b
Explanation:
Predict Will you find starch in a plant leaf grown in the light? Why?
Answers
Answer:
You would find starch in a plant leaf.
Explanation:
This is due to the fact that when there is excess energy, it will be stored in plant tissue as starch.
Burning a candle melts the wax, but also burns the wick. Explain how burning a candle involves both physical and chemical changes.
Answers
Answer:
Burning of the candle is both physical and chemical change. Burning of the candle melts the wax and hence physical state of wax has changed from solid to liquid.
Again the wax combines with the atmospheric oxygen and changes to carbon dioxide, heat and light.
Thus both the changes are accompanied by the burning of the candle.
Explanation:
hope this helps!
~mina
Starting with a 7. 0 x 10-5 M. Allura Red stock solution you will need to calculate the volumes required to prepare 10.00 mL solutions of 3.5 x 10-5 M, 2.8 x 10-5 M, 2.1 x 10-5 M, 1.4 x 10-5 M, and 3.5 x 10-6 M before coming to lab. What volume of the stock solution will be required to prepare 10.00 mL of a 2.1 x 10-5 M solution of Allura Red?
Answers
Answer:
1) 5.0 mL, 4.0 mL, 3.0 mL and 2.0 mL respectively.
2) 3.0 mL
Explanation:
Hello there!
1) In this case, by considering that the equation we use for dilutions contain the initial and final concentrations and volumes:
[tex]C_1V_1=C_2V_2[/tex]
For the first four solutions, we compute the volume of the stock one (V1) as shown below:
[tex]V_1=\frac{C_2V_2}{C_1}[/tex]
Thus, we obtain:
[tex]V_1^1=\frac{3.5x10^{-5}M*10.00mL}{7.0x10^{-5}M} =5.0mL\\\\V_1^2=\frac{2.8x10^{-5}M*10.00mL}{7.0x10^{-5}M} =4.0mL\\\\V_1^3=\frac{2.1x10^{-5}M*10.00mL}{7.0x10^{-5}M} =3.0mL\\\\V_1^4=\frac{1.4x10^{-5}M*10.00mL}{7.0x10^{-5}M} =2.0mL[/tex]
2) In this case, for a final concentration of 2.1x10-5 M and a volume of 10.00 mL, the volume of the stock solution would be:
[tex]V_1=\frac{2.1x10^{-5}M*10.00mL}{7.0x10^{-5}M} =3.0mL[/tex]
Best regards!
Which organisms are decomposers?
Select all correct answers.
mushrooms
snake
bacteria
grass
mold
Answers
bacteria
mold
Answer:
mushrooms bacteria mold
Explanation: