Answer:
H2Br + 2KOH ----- K2Br + 2H2O
Define ductility.
Ty!!
Explanation:
Ductility is the ability of a material to be drawn or plastically deformed without fracture. It is therefore an indication of how ‘soft’ or malleable the material is. The ductility of steels varies depending on the types and levels of alloying elements present. An increase in carbon, for example, will increase the strength but decrease the ductility.
Answer:
ductility of a metal able to be drawn out into a long thin wire.
What is the percent composition by mass of each element in Co(HSO4)2?
Show how you worked out the problem!!!!
______________% Co
_______________% H
----------------------------% O
------------------------------% S
Answer:
CoHOS
Explanation:
______________% Co
_______________% H
----------------------------% O
------------------------------% S
You know im wrong but eh....
what is a soluble compound that reacts with acid to produce carbon dioxide?
Explanation:
like all metals,calcium carbonate reacts with acidic solution to produce carbon dioxide
Please help fast I will give brainliest
Answer:
B.
Explanation:
how does lactic acid make milk sour?
Answer:
but you should
Explanation:
but you should
True or False: A second tidal bulge forms on the side of Earth opposite the moon because the moon's gravity pulls Earth away from the water.
A second tidal bulge forms on the side of Earth opposite the moon because the moon's gravity pulls Earth away from the water, which is false as the second tidal bulge is not caused by the moon's gravity pulling the Earth away from the water but rather is a result of the centripetal force caused by the rotation of the Earth-Moon system.
What is the tidal force?Tidal bulges are caused by the gravitational forces of the moon and the sun on the Earth's oceans. The gravitational force of the moon is stronger on the side of the earth facing the moon than on the side facing away from the moon. This creates a tidal bulge on the side of the earth facing the moon. However, there is also a second tidal bulge that forms on the side of the earth opposite the moon.
Hence, a second tidal bulge forms on the side of Earth opposite the moon because the moon's gravity pulls Earth away from the water, which is false as the second tidal bulge is not caused by the moon's gravity pulling the Earth away from the water but rather is a result of the centripetal force caused by the rotation of the Earth-Moon system.
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Silver is a conductor. *
Is it true or false
Answer:
True
Explanation:
Answer:
True.
Explanation:
Silver is a good conductor of electricity because the atoms have many electrons that can be moved.
The teacher puts you in charge of measuring the pH of a marked solution of 0.0050 M HCL. What is the pH of this
solution?
HELP PLZZZ!!!
Answer: The pH of given solution is 2.3
Explanation:
It is given that the concentration of HCl solution is 0.005 M.
pH is the negative logarithm of concentration of hydrogen ions.
[tex]pH = -log [H^{+}][/tex]
Substitute values into the above formula as follows.
[tex]pH = -log [H^{+}]\\= - log (0.005)\\= 2.3[/tex]
Thus, we can conclude that the pH of given solution is 2.3
¿Qué es una fuente de luz primaria?
Answer:
Las fuentes de luz primarias son aquellas que emiten la luz que producen. Por ejemplo: la luz de Sol, un relámpago, la de una vela,...
A su vez las fuentes primarias las podemos clasificar en: fuentes naturales y fuentes artificiales
Explanation:
what mass of oxygen must react in order for 4.25 grams of CO2 to be produced? HELP
When water changes from gas to liquid, the: color of the water remains the same volume of the water remains the same mass of the water remains the same
Answer:
color of water remains same
PLEASE ANSWER ASAP!
The number placed in front of a formula is called a coefficient. The small number within a chemical formula is called a subscript. Why do we adjust coefficients when balancing chemical equations and not subscripts?
[tex]\huge \boxed{\mathcal {\gray { A nswer :}}}[/tex]
While balancing the chemical equations, the sub scripts aren't changed because by changing sub script we actually change the compound formed, hence coefficients are changed so the compound remains the same.
for example : ( for understanding )
in balancing the given reaction,
H2 + O2 =》H2O
if we change Oxygen's sub script in " H2O "
we get,
H2O + O2 =》H2O2
but here the compound formed isn't water, it is "H2O2" (hydrogen peroxide), so we can't change the sub script.
but by changing the coefficient, we get :
2 H2 + O2 =》2 H2O
A. On what continent would you find each of the following locations?
1. 60°N, 100°W
2. 60°N, 100°E
3. 20°S, 60°W
4. 20°N, 20°E
5. 20°S, 140°E
B. Identify the city that lies closest to each pair of coordinates.
6. 30°N, 90°W
7. 30°N, 30°E
8. 60°N, 30°E
C. Give the coordinates for each city.
9. Shanghai, China
10. Durban, South Africa
D. Identify the city with each pair of coordinates.
11. 0°, 78°W
12. 51°N, 0°
13. 38°S, 145°E
E. Estimate the coordinates for each city to the nearest degree.
14. Nairobi, Kenya
15. New York, New York
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
Answer:
Durban, South AfricaExplanation:
please mark as brain and like please
Which of the following characteristics can be used to classify an organism into a taxonomic domain? Being heterotrophic or autotrophic O Presence of nucleus in cells Being unicellular or multicellular O Mode of reproduction
Answer:
O Presence of nucleus in cells
Explanation:
What does change in different types of milk?
1.
2.
Answer:
the flavour or the taste or the packaging
What kind of changes contribute to spontaneity?
A. Reduced randomness
B. An increase in entropy
C. An increase in enthalpy
D. Absorbed heat in a reaction
Answer:
An increase in entropy
Explanation:
Doing the same question hope this helps
The only helpful bacterium found in humans is found in the stomach?
Answer:
Possibly Probiotics
they are very helpful to the human gut
Or the most 2 helpful bacteria are Lactobacillus and Bifidobacteria
Explanation:
Which illustration represents a sound wave?
A or B
no link or i will report,plz help this is a test
Carnegie Development stages
Answer:
Stage 1: 1 days.
Stage 2: 2-3 days.
Stage 3: 4-5 days.
Stage 4: 6 days.
Stage 5 (a-c): 7-12 days.
Stage 6: c. 17 days.
Stage 7: c. 19 days.
Stage 8: c. 23 days.
A sample of gas occupies a volume of 27 mL at a temperature of 161K. What is the volume of the temperature if raised to 343K?
Answer: The volume is 57.52 mL if the temperature if raised to 343K.
Explanation:
Given: [tex]V_{1}[/tex] = 27 mL, [tex]T_{1}[/tex] = 161 K
[tex]V_{2}[/tex] = ?, [tex]T_{2}[/tex] = 343 K
According to Charles law, at constant pressure the volume of an ideal gas is directly proportional to temperature.
Formula used is as follows.
[tex]\frac{V_{1}}{T_{1}} = \frac{V_{2}}{T_{2}}\\\frac{27 mL}{161 K} = \frac{V_{2}}{343 K}\\V_{2} = 57.52 mL[/tex]
Thus, we can conclude that volume is 57.52 mL if the temperature if raised to 343K.
Which statements explain the relationship between mass, velocity and kinetic energy? Select the TWO (2) that apply.
Consider the equation to calculate kinetic energy: KE = ½mv2
Kinetic energy decreases if either the mass or the velocity of the object decreases or if both decrease.
Kinetic energy decreases if either the mass or the velocity of the object increases or if both increase.
Kinetic energy increases if either the mass or the velocity of the object decreases or if both decrease.
Kinetic energy increases if either the mass or the velocity of the object increases or if both increase.
Answer:
I think D
Explanation:
Kinetic energy has a direct relationship with mass, meaning as mass increases so does the kinetic Energy of an object.
Decane (C10H22) can be split into propene (C3H6) and heptane (C7H16) by cracking
. These 3 molecules can all be described as ..
A. alkanes
B. alkenes
C. monomers
D. hydrocarbons
Answer:
Hydrocarbons
Explanation:
They all are made up of only carbon and hydrogen atoms, so they're organic molecules known as hydrocarbons. Decane and Heptane are alkanes, Propene is an alkene.
Help me get it right and no links
Answer:sorry
Explanation:
Answer:
C
Explanation:
C, because unlike A and B, it's an improvement in human population. And D wouldn't really be classified as an improvement as it states "Population has not decreased or increased significantly."
PLEASE HELP! NO LINKS! CHEMISTRY!
Solution A has a pH of 2.0. Solution B has a pH of 5.0. Which solution is more acidic? Based on the H+ ion concentrations in the two solutions, how many times more acidic?
Answer:
Solution A is 1,000 times more acidic than Sol. B
Explanation:
for pH values we use scientific notation:
-log10 c (where c is the hydrogen ion concentration) is used to notate pH value (think of it as a unit)
ie:
10^-2 is sol A 10^-5 is sol B
5-2 is 3
10^-3 = 1000
there's a diff of 1,000 between the solutions.
The acidity or alkalinity of a solution depends on the hydronium ion concentration and hydroxide ion concentration. Here the solution A of pH 2.0 is more acidic than the solution of pH 5.0.
What is pH?The pH of a solution is defined as the negative logarithm to the base 10 of the value of the hydronium ion concentration in moles per litre. When the pH of the solution is less than 7 it is acidic whereas when pH is greater than 7, it will be basic.
The pH of the solution is calculated by the equation:
pH = - log [H₃O⁺]
Then the concentration of H₃O⁺ is:
[H₃O⁺] = 10⁻pH
At pH = 2.0, [H₃O⁺] = 10⁻² = 0.01
At pH = 5.0, [H₃O⁺] = 10⁻⁵ = 0.00001
Thus here the Solution A is 1,000 times more acidic than Solution B.
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Why did scientists reject Lamarck’s idea of evolution?
Organisms cannot change their characteristics during their lifetime.
Traits acquired during a lifetime are not passed on to offspring.
Organisms have not changed during Earth’s history.
Traits acquired during a lifetime are of no use to an individual.
Answer:
B
Explanation:
Traits acquired during a lifetime are not passed on to offspring.
Why are models used to represent atoms?
O A. Atoms are too small to see.
O B. Models are completely accurate.
O C. Models explain new evidence.
O D. Models never change over time.
How does water quality affect other aspects of nature?
Help me please!!!!!!!!
Answer:
4.00
Explanation:
. Which of the following is not a product of photosynthesis?
O A. Carbon dioxide
O B. Glucose
O C. Oxygen
Answer:
The answer would be a
Explanation:
That is what goes into the plant and oxygen IS an outcome
A scientist is comparing samples of intrusive and extrusive igneous rock. Describe one way the samples are alike and one way they are different
Answer:
Explained below
Explanation:
They are different simply in terms of how they are formed. An intrusive igneous rock is formed as a result of magma being pushed into the rock right below the earth's surface while an extrusive rock is formed as a result of lava erupting onto the surface of earth.
Both rocks are similar in terms of appearance because they both have crystals. Intrusive has large crystals while extrusive has small crystals.