Answers
Answer:
4
Explanation:
because number 4 moves continuous
Related Questions
PLS help its not that hard but I don't understand it. Its science not chemistry but they don't have science.
In this activity, you will construct two solar ovens and use thermometers to determine which oven gets the hottest. What engineering problem are you trying to solve?
Answers
Answer:
Conservation of resources. Saving energy and helping reduce carbon emission.
Explanation:
Find the pH of a solution with a [H+] of 0.045M.
Answers
Answer:
1.35Explanation:
The pH of a solution can be found by using the formula
[tex]pH = - log ([ {H}^{+} ])[/tex]
From the question
[H+] = 0.045 M
We have
[tex]pH = - log(0.045) \\ = 1.346787...[/tex]
We have the final answer as
1.35Hope this helps you
Answer:
1.35
Explanation:
How does the energy in chemical bonds affect the energy in a chemical reaction?
Answers
Answer:
Is by comparing the energy absorbed when bonds in the reactants are broken with the energy released when bonds in the products are formed, you can determine whether a chemical reaction releases energy or absorbs energy overall. Chemical reactions that release energy are called exothermic
What type of reaction occurs without the addition of heat?
Answers
Answer:
A
Explanation:
A spontaneous reaction doesn't require any addition of heat.
The rest of the choices require a transfer of heat energy.
Which procedure is an attempt to correct a genetic disorder by replacing a mutated gene with a normal allele?
O selective breeding
• cloning
O artificial selection
•
gene therapy
Answers
gene therapy
Explanation:
Gene therapy, also called gene transfer therapy, the introduction of a normal gene into an individual's order to repair a mutation that causes a genetic disease.
Answer:
C artificial selection
Explanation:
Brainly please
in your notebook,write the appropriate tempo for the following actions.Then demostrate the actions then,demostrate the action in front of your parents,guardian
Answers
Answer:
cell :—
•They lack a well-defined nucleus, have a nucleoid instead.
•Usually have double-stranded, circular DNA.
•Do not have mitochondria.
Eukaryotic cell :—
•Have a well-defined nucleus enclosed in the nuclear membrane.
•Have a linear double-stranded nucleus.
•Mitochondria are present.
This gardener started with much smaller plants in this park. Over time, the garden has grown into a large display of brilliant flowers. What would you tell the gardener to explain how the plants have grown and flourished so successfully?
Answers
Explain why is it a good idea for the eco-house to have both a wind turbine and solar panels?
Answers
Answer:
Explanation:
Wind is more of an efficient power source than solar. Compared to solar panels, wind turbines release less CO2 to the atmosphere, consume less energy, and produce more energy.
A volume of 3.0 L of air is warmed from 50 degrees celsius to 100 degrees celsius. What is the new volume if the pressure remains constant?
Answers
Answer:
3.45 L
Explanation:
Temperature and volume are linearly related (when one increases or decreases, so does the other).
Convert the temperature to Kelvin:
50 °C = 323 K
100 °C = 373 K
To find the rate of change, divide 373 by 323 to get roughly 1.15
Multiply the amount of liters by this factor to get your answer
How much heat, in kilojoules, is needed to raise the temperature of 236 g of silver from 8.5oC to 34.9 °C? (cAg = 0.24 J/g°C)
Answers
Answer:
1.49kJ
Explanation:
Using the formula as follows;
Q = m × c × ∆T
Where;
Q = amount of heat (joules)
m = mass (g)
c = specific heat of silver (J/g°C)
∆T = change in temperature (°C)
According to the information given in this question;
mass of Silver (Ag) = 236g
c of Ag = 0.24 J/g°C
initial temperature (T1) = 8.5°C
final temperature (T2) = 34.9°C
∆T = T2 - T1 = 34.9 - 8.5 = 26.4°C
Using Q = m × c × ∆T
Q = 236 × 0.24 × 26.4
Q = 1,495.3 Joules
Amount of heat needed to raise the temperature of Silver (Q) in kilojoules is 1495.3/1000 = 1.4953
Q = 1.49kJ
Because fresh water is constantly be evaporated from the ocean and then replaced by rivers, the salinity of the oceans ____.
A.increases
B.doubles
C.remains balanced
D. decreases
Answers
Answer: Because fresh water is constantly be evaporated from the ocean and then replaced by rivers, the salinity of the oceans remains balanced.
Explanation:
When evaporation takes place in sea water then of course there will occur an increase in salinity.
But as this evaporated water is replaced by water coming from rivers. As a result, the raising salinity is counter balanced by the water coming from rivers.
Hence, salinity remains balanced in sea water.
Thus, we can conclude that because fresh water is constantly be evaporated from the ocean and then replaced by rivers, the salinity of the oceans remains balanced.
Beryllium hydrogen carbonate is more than 3% hydrogen by mass.
True
False
Answers
Which of the following claims about a binary compound in which the bonding is ionic is most likely to be scientifically valid?
A) Both elements in the compound are metals.
B) The atomic masses of the elements in the compound are relatively small.
C) There is equal sharing of electrons between the atoms of the elements in the compound.
D) The electronegativity difference between the elements in the compound is relatively large.
Answers
Answer:
There is ionic bonding between Mg2+ ions and NO3− ions. Which of the following claims about a binary compound in which the bonding is ionic is most likely to be scientifically valid? Both elements in the compound are metals.
Answer:
The answer is D.
Explanation:
A: not correct: one element is a metal and the other is a non-metal.
B: not correct: Fr could be combined with Cl
C: not correct: They are transferred not shared.
D: correct: Non-metals have a higher electronegativity in comparison to the metals with a low electronegativity which results in a great change in electronegativity.
Which example in the video is a physical change?
A) Burning steel wool
B) Mixing chemicals
C) Rusting nail
D) Melting ice cream
Answers
D melting ice cream because if u know what a physical change is its a change that you can reverse chimical change are changes you cant reverse so u can freeze back ice cream so :D
When [H+] = 3.33 x 10-7 what is the ph?
Answers
Answer:
6.48Explanation:
The pH of a solution can be found by using the formula
[tex]pH = - log ([ {H}^{+} ])[/tex]
From the question we have
[tex]pH = - log(3.33 \times {10}^{ - 7} ) \\ = 6.477555...[/tex]
We have the final answer as
6.48Hope this helps you
help me pleaseeeee #5
Answers
Answer:
Red
Explanation:
A gas has a volume of 25 ml, at a pressure of 1 atmosphere (1 atm). Increase the volume to 125 ml and the temperature remains constant. What is the new pressure? please help
Answers
Explanation:
The new pressure can be found by using the formula for Boyle's law which is
[tex]P_1V_1 = P_2V_2 \\[/tex]
Since we're finding the new pressure
[tex]P_2 = \frac{P_1V_1}{V_2} \\[/tex]
We have
[tex]P_2 = \frac{25 \times 1}{125} = \frac{25}{125} = \frac{1}{5} = 0.2 \\ [/tex]
We have the final answer as
0.2 atmHope this helps you
what will litmus paper turn when it reacts with sodium nitrate?
Answers
1
Explain how adding crushed limestone reduces the acidity of the soil. Include a
general equation for the reaction.
Answers
Answer:
If a soil test indicates low magnesium, dolomitic limestone can be used to correct both the nutrient deficiency and pH. The value of limestone is in its ability to neutralize soil acidity. Limestone's properties differ considerably, and these differences influence the limestone's ability to neutralize soil acidity.
Explanation:
HAVE A GOOD DAY
balance this equation:
AsCl3(aq) +__H2S (aq)--> __As2S3(s) + ___HCl (aq)
Answers
Please and thank you in advance. Due today
Answers
Answer:
Sorry I really don't know but can you help with one of my question I posted please thanks.
Why is carbon dioxide a covalent bond?
Answers
Explanation:
One atom of carbon (2.4) combines with two atoms of oxygen (2.6) to form the compound carbon dioxide CO2 (only the outer shell of carbon's electrons are shown). ... The carbon dioxide molecule is held together by the strong C=O. carbon–oxygen double covalent bonds by sharing electrons.
FIRST GETS BRAINLIEST (THE ONE THAT IS CORRECT)
A generator changes (Mechanical, Electrical, Static) energy into
(Mechanical, Electrical, Magnetic) energy.
Answers
Answer:
mechanical energy to electrical energy
Explanation:
The water turns the turbine with produces mechanical energy so the generator converts it to electrical energy
Work out the relative formula mass of ammonium nitrate, NH4NO3.
Relative atomic masses: H 1; N 14; O 16.
...........................................................................................................................
...........................................................................................................................
Relative formula mass of ammonium nitrate = ...............................
Answers
Answer:
The relative molecular mass of ammonium nitrate is 80 gm
Explanation:
[tex]M_{NH4NO3}[/tex] = 14 + (4 × 1) + 14 + (16 × 3) = 80 (gm)
What happens to wavelength as wave frequency increases?
Answers
Answer:
As a wavelength increases in size, its frequency and energy (E) decrease. From these equations you may realize that as the frequency increases, the wavelength gets shorter. As the frequency decreases, the wavelength gets longer.
Explanation:
Select the correct answer.
A circuit is used in which process?
OA. electricity
OB. magnetism
OC. velocity
OD. gravity
Answers
Answer:
electricity
Explanation:
A circuit is used in every electrical and electronics operation.
The pH of a solution is 8. Some hydrochloric acid is added to the solution. Suggest the pH of the solution after mixing. pH=.......??
Answers
Answer:
Probably around 6 because the ph of hydrochloric acid is 3
Explanation:
Help with science!!!!
Answers
Answer:
the answe would be (c) temperate continental
Explanation:
How many atoms are there in 6.8g of S?
Answers
mixture of same boiling point cannot be separated by using distillation why?
Answers
Answer:
both the substances will evaporate
Explanation: