Answer:
Salt is cubed, crystal like, grainy, and shiny
Explanation:
Answer:
salt is basic in nature
it is of diffrent type
they are of 4 type
1 is sodium hydroxide
2 is bleaching powder
3 is baking soda
4 is washing soda
A piston contains 0.39L of air at 1.0 atm. If the pressure on the piston is increased to 5.6 atm, what is the new volume?
The new volume : 0.07 L
Further explanationBoyle's Law
At a constant temperature, the gas volume is inversely proportional to the pressure applied
[tex]\rm p_1V_1=p_2.V_2\\\\\dfrac{p_1}{p_2}=\dfrac{V_2}{V_1}[/tex]
P₁=1 atm
V₁=0.39 L
P₂=5.6 atm
[tex]\tt V_2=\dfrac{P_1.V_1}{P_2}\\\\V_2=\dfrac{1\times 0.39}{5.6}\\\\v_2=\boxed{\bold{0.07~L}}[/tex]
What mass (in g) of lithium metal can be produced by the electrolysis of molten LiCl for 23.93 hr with an electrical current of 17.7?
Answer:
1.828 g
Explanation:
The half-reaction is:
Li⁺ + 1e⁻ → Li(s)First we calculate the coulombs:
Coulombs = Amperes * seconds23.93 hr * 60 = 1435.8 sCoulombs = 17.7 A * 1435.8 s = 25413.66 CThen we calculate the number of lithium moles, using Faraday's constant:
25413.66 C * [tex]\frac{1mol(e^-)}{96485C} *\frac{1molLi}{1mol(e^-)}[/tex] = 0.2634 mol LiFinally we convert moles to grams:
0.2634 mol Li * 6.941 g/mol = 1.828 gConsider the following isomerization reactions of some simple sugars and values for their standard Gibbs free energy ΔGo:reaction A: glucose-1-phosphate rightarrow glucose-6-phosphate, ΔGo = -7.28 kJ/mol reaction B: fructose-6-phosphate rightarrow glucose-6-phosphate, ΔGo = -1.67 kJ/molCalculate for the isomerization of glucose-1-phosphate to fructose-6-phosphate.Calculate the equilibrium constant K for the isomerization of glucose-1-phosphate to fructose-6-phosphate at 298 K.
Answer:
Explanation:
glucose-1-phosphate → glucose-6-phosphate, ΔGo = -7.28 kJ/mol
fructose-6-phosphate → glucose-6-phosphate, ΔGo = -1.67 kJ/mol
subtracting the equation
glucose-1-phosphate - fructose-6-phosphate = 0 , ΔGo = -7.28 - ( -1.67 ) kJ / mol
glucose-1-phosphate = fructose-6-phosphate ΔGo = - 5.61 kJ / mol
- ΔGo = RT lnK
5.61 x 10³ = 8.31 x 298 x lnK
lnK = 2.265
K = 9.63 .
Scientists must be open to questioning everything, even the things they think they already know. Which sentence from the article provides the BEST support to the statement above? (A) Scientific discoveries do not take place overnight, and many are small and gradual. (B) Chances are, you'll stumble many times before you find your footing, and that's OK. (C) We live in a world where knowledge and uncertainty can and do coexist. (D) When we are curious about other people, we can become more compassionate.
Answer:
The sentence that best supports the statement above is (C) We live in a world where knowledge and uncertainty can and do coexist
ILL GIVE BRAINLIST
How many valence electrons does boron gain when it becomes an anion?
A. 2
B. 3
C. 4
D. 5
Answer:
5
Explanation:
Genes can be best defined as:
A. the traits expressed by the organism
B. the DNA that make up a chromosome
C. a form of reproduction
D. section of DNA that codes for a specific trait
Answer:
D. section of DNA that codes for a specific trait
Explanation:
Genes are sections of the DNA that codes for a specific trait. They are simply defined as the basic physical and functional unit of hereditary.
Genes are usually found encoded in the DNA. The effects produced by genes result from their coordination of certain protein synthesis activities. Inheritance is attained when genes are passed from parents to offspring.