What is the highest occupied energy level for an atom of copper (Cu)? *
Answer:
third energy level - 18
hope this helps
Which member of the alkali metals has the highest
electronegativity?
A)Na
B)Cs
C)Fr
D)Rb
E)Li
F)K
Answer:
E)Li
Explanation:
Electronegativity is the tendency of an atom to attract a pair of bonding electrons. In the periodic table, electronegativity increases across the period and decrease down the group.
This means the element at the top of the group would have the highest electronegativity.
The correct option is;
E)Li
The Genetic Code
1. What would the codon sequence (s) be for:
a. Glycine ______________
b. Methionine ______________
2. What is the mRNA stop codon?
3. What are the m-RNA’s stop codons?
4. What amino acid sequence would be made from the mRNA sequence AGUGCGAUGCCG
5. What amino acid sequence would be made from the DNA sequence
CGTTATCGGACT
Answer:
a. GGG, GGC, GGA. GGU
B. AUG
2. UAA or UAG
3.UAA or UAG
4.Serine-Alanine-Methoionine-Proline
5.Arginine-Isolucine- Proline-Theorine
Explanation:
Sorry if I'm wrong
Hope this Helps!
1) Solution
a. GGG, GGC, GGA, GGU
b. AUG
2) Solution
UAA or UAG
3) Solution
UAA or UAG
4) Solution
Serine-Alanine-Methoionine-Proline
5) Solution
Arginine-Isolucine- Proline-Theorine
help for brainlist and extra points!!
Answer:
Explanation:
c.
Something used to power some devices.
Answer:
electricity
Explanation:
or maybe food
Which of the following would NOT be an example of a chemical change
Yeast produces carbon dioxide gas to make dough rise.
Two white liquids mix together to create a pink solid
Lighting a fire to keep warm.
Sugar is dissolved into tea to make it taste sweeter.
Answer:
D. Sugar is dissolved into tea to make it taste sweeter.
Explanation:
it is a physical change
PLEASE HELP ME what happened to the green trait in mendel's pea plants
Answer:
Mendel's gene involved in pea color decides whether the chlorophyll in the pea will be broken down or degraded. When this gene isn't working, the chlorophyll stays around and the pea is green. So in this case the recessive trait is indeed due to a broken gene.
Explanation:
The green trait in Mendel's pea plants should be involved is considered to be pea color.
Green trait in Mendel's pea plants:Mendel's gene included in pea color that the chlorophyll should be in the pea and the same should be split down or degraded.
Also when the gene should not be working so here chlorophyll should stays around and the pea should be green.
In this case, the recessive trait for indeed because of the broken gene.
Learn more about plants here: https://brainly.com/question/18532463
3. What is the primary consumer in the following food chain, sun - tomato plant - tomato worm - wasp?
tomato worm
tomato plant
wasp
sun
Answer:
Tomato worm
Explanatio
v
vv
Answer
Tomato Worm
Explanation:
Potassium chlorate is a white, crystalline solid. It can be broken down into potassium chloride (a salt)
and oxygen gas. For this chemical reaction write a:
a) Word equation
b) Skeletal equation (balanced)
Answer:
Notice that the number of atoms of
K
and
Cl
are the same on both sides, but the numbers of
O
atoms are not. There are 3
O
atoms on the the left side and 2 on the right. 3 and 2 are factors of 6, so add coefficients so that there are 6
O
atoms on both sides.
2KClO
3
(
s
)
+ heat
→
KCl(s)
+
3O
2
(
g
)
Now the
K
and
Cl
atoms are not balanced. There are 2 of each on the left and 1 of each on the right. Add a coefficient of 2 in front of
KCl
.
2KClO
3
(
s
)
+ heat
→
2KCl(s)
+
3O
2
(
g
)
The equation is now balanced with 2
K
atoms,
A __________________ chemical equation shows that the same number of atoms in the reactants are also in the product.
balanced
rearranged
transferred
beautiful
Help please!! I’ll mark you brainliest!!
Answer:
a) should be an answer that is like "matches" or "equals" or "is equal to"
b) should be "conservation of mass"
c) can't be sure because I'd need to see the answer choices, but it should be a properly balanced chemical equation (one with the same number and type of atoms on both sides)
Explanation:
Water decomposes into hydrogen and oxygen
Some Nomenclature stuff^
Answer:
This isnt a question
Explanation:
Answer:
this isn’t a question
Explanation:
Not a question
Calculate the molar concentration of a solution containing 433 grams of C6H12O6 in 82 milliliters of water. The molar mass of C6H12O6 is 180.156 g/mol
Answer:
29.27M
Explanation:
Molar concentration can be calculated using the formula;
Molar concentration (molarity) = number of moles ÷ volume
Mole = mass ÷ molar mass
Where;
Molar Mass of glucose (C6H12O6) = 180.156g/mol
Mass = 433g
Mole = 433/180.156
Mole = 2.40moles
Volume = 82mL
Since 1L = 1000mL
82mL = 82/1000
= 0.082L
Molar conc. = 2.40mol/0.082L
Molar conc. = 29.27M
Explain the similarities and differences between putting a beaker of ethanoic acid in the refrigerator and mixing it with sodium carbonate
Answer:
See explanation
Explanation:
When a beaker of ethanoic acid is placed in the refrigerator, its temperature drops and the vessel feels cool.
Now, when we mix ethanoic acid and sodium carbonate, an endothermic reaction occurs, fizzing is observed as carbon dioxide is given off and heat is lost to the surroundings causing the reaction vessel to feel cool to touch.
The difference between putting ethanoic acid in the refrigerator and adding sodium carbonate to the solution is that, in the former, no new substance is formed. The substance remains ethanoic acid when retrieved from the refrigerator. In the later case, new substances are formed. The substance is no more ethanoic acid because a chemical reaction has taken place.
3. Charles Law: What is the volume of the air in a Helium balloon that has 135 mL at 67.6 degrees
Fahrenheit if the temperature is raised to 100. degrees Fahrenheit?
Answer:
199.7mL
Explanation:
Using Charles law equation as follows:
V1/T1 = V2/T2
Where;
V1 = initial volume (mL)
T1 = initial temperature (°F)
V2 = final volume (mL)
T2 = final temperature (°F)
According to the information provided in this question, V1 = 135mL, V2 = ?, T1 = 67.6°F, T2 = 100°F
Using V1/T1 = V2/T2
135/67.6 = V2/100
Cross multiply
135 × 100 = 67.6 × V2
13500 = 67.6V2
V2 = 13500/67.6
V2 = 199.704
The new volume in the air in the helium ballon is 199.7mL.
Answer:
199.7mlexplain;
math
Blackboard chalk contains a certain percentage of calcium carbonate. If a 1.51 g piece of chalk produces 0.665 g of carbon dioxide, what percentage of calcium carbonate is chalk?
The percentage of Calcium carbonate in chalk = 100%
Further explanationGiven
1.51 g piece of chalk produces 0.665 g of carbon dioxide
Required
percentage of calcium carbonate
Solution
Reaction
CaCO3 (s) + 2 HCl (aq) → CaCl2 (aq) + H2O (l) + CO2 (g)
mol CO2 :
= 0.665 g : 44 g/mol
= 0.015
From the equation, mol CaCO3 = mol CO2 = 0.015
mass CaCO3 :
= mol x MW
= 0.015 x 100
= 1.5 g
Answer the question using the equation: HCl(aq)+H2O(l)→H+(aq)+Cl-(aq)+H2O(l)→H3O+(aq)+Cl-(aq) Which product is a Lewis base?
Answer:
Cl-
Explanation:
The equation of the reaction is;
H+(aq)+Cl-(aq)+H2O(l)→H3O+(aq)+Cl-(aq)
Lewis base refers to substances that can donate a lone pair of electrons(e.g OH^-, Cl^- etc) or a pair of nonbonding electrons.(eg NH3, H20 etc). A Lewis base is therefore an electron-pair donor. They are easily recognized because they often have lone pairs or are negatively charged species.
If we look at the products, Cl- is a Lewis base because it is a lone pair donor. We see this more clearly because the specie is negatively charged.
Answer:
Cl
Explanation:
A scientist was studying a population of elephants. The first year, he counted a population of 80. Over the next eight
years, the population's numbers were 94, 100, 103, 110, 125, 120, 125, 120. What appears to be the carrying capacity
for this population?
0 120
0124
O 125
O 126
Answer:
The carrying capacity of this population would be 125 we know this because we see that this number occur multiple times and seems to be the tipping point after which the number of the population always go down
Answer:
The carrying capacity of this population would be 125 we know this because we see that this number occur multiple times and seems to be the tipping point after which the number of the population always go down
Explanation:
PLEASEEE HELP ITS DUE SOON!
Answer:
The correct answer would be C) Support
What type of Chemical is Pb?
Answer:
Explanation:
That is the symbol for the element lead
The students in Mrs. Jamison's class were conducting a lab experiment to determine the if temperature affected how fast 2 drops of food coloring mixed into water. They used frozen water, refrigerated water, room temperature water, and hot water. Which water allowed the food coloring to mix the fastest?
A) Hot water
B) Frozen water
C) Refrigerated water
D) Room temperature water
Answer:
A
Explanation:
plllllz its 100 and i give brain list
Answer:
Your answer is the on with the clownfish and the anemone
Explanation:
Hope this helps!
Select the correct answer.
How does adding oxygen (O2) to this reaction change the equilibrium?
2SO2(g) + O2(g) ⇌ 2SO3(g)
A.
The equilibrium shifts right to produce more SO3 molecules.
B.
The equilibrium shifts left to produce more O2 molecules.
C.
The equilibrium shifts right because of decreased collisions between SO2 and O2 molecules.
D.
The equilibrium shifts left with an increase in SO2 and O2 molecules.
E.
The equilibrium shifts left because of increased collisions between SO2 and O2 molecules.
Answer:
A. The equilibrium shifts right to produce more SO3 molecules.
Explanation:
Are plastics made of molecules with
simple structures or extended
structures? Explain.
Answer:
Explanation:
Plastics are made with very complex structures. That's why they turn black when burnt and why most things/bacteria cant break down plastic
Mr. Evans rides his bicycle an average speed of 8 km/hr. How far has he
traveled if he rides 4 hours?
Answer:
[tex]\boxed {\boxed {\sf 32 \ kilometers}}[/tex]
Explanation:
Distance is the product of speed and time.
[tex]d=s*t[/tex]
The speed is 8 kilometers per hour and the time is 4 hours.
[tex]s= 8 \ km/hr \\t= 4 \ hr[/tex]
Substitute the values into the formula and multiply. Note that the hours will cancel when multiplied.
[tex]d= 8 \ km/hr * 4 \ hr[/tex]
[tex]d= 32 \ km[/tex]
Mr. Evans traveled 32 kilometers.
Answer:
32 km.
Explanation:
Distance = speed × time
We know that Mr. Evans is riding his bicycle at an average of 8km/hr, or 8 kilometers per hour. He is riding his bike for 4 hours, so we will need to multiply according to the formula.
8 × 4 = 32
The answer to the question is 32 kilometers.
which pair shares the same empirical formula. c2h2 and c6h6, c2h2 and c2h4, ch2 and c6h6, ch and c2h4
Answer:
Answer: CH₃ and C₂H₆ have same empirical formula.
Explanation:
it just compares in that it its the same
Answer:c2h2 and c6h6,
Explanation:
heyyyy this is science I will give you brainliest but u have to show your work
Fun question; Naurto or sauske
When the wind blows across a body of water, ____ between the water and air causes the water to move. ions gravity friction density
I need Help Please !!!!!
Answer:
dang
Explanation:
dang that looks hard man, I wish I could help man but unfortunately I got ran over twice and got a concussion sorry man
Convection is the transfer of heat through the rising and sinking of a fluid. A student is constructing an explanation for how convection currents form in the mantle. Which statement would be most useful for the student to include in the explanation?
Answer:
Capilarity: the rise and fall of the convention currents heat in the mantle
Answer:
Earth's temperatures increase with depth.
Explanation:
because i just know