Answer:
difference in the atoms' electronegativites
Explanation:
hope this helps <333
How many grams are in 1.5 moles of C5H12
Answer:
72.14878 grams
Explanation:
Pls answer as quick as possible pls.
Assertion: Elements and compounds are pure substances.
Reason: Properties of compounds are different from those of its constituent elements.i) Both A and R are true and R is the correct explanation of the assertion.
ii) Both A and R are true but R is not the correct explanation of the assertion.
iii)A is true but R is false.
iv)A is false but R is true.
Answer:
The answer is number 3
Explanation:
hope it helps
Help ASAP
Avocados have a pH of 6.27. Avocados are categorized as...
O Base
O An Acid
O Neutral
Answer:
Base
Explanation:
A group of organs work together to perform a certain function is called?
Answer:
it's called an organ system
Answer:
organ system
Explanation:
I Honestly dont know if its correct but worth a shot
WHAT WILL HAPPEN TO THE RESISTANCE OF CONDUCTOR IF :
1. the length of the wire is halved?
2. the area of cross-section of the conductor is increased?
3. the temperature of the conductor is increased?
Answer:
1. The length of the wire is halved.
the resistance of a conductor is directly proportional to it's length (L) as R - L. Thus doubling it's length will double it's resistance, while halving it's length would halve the resistance. Also the resistance of a conductor is inversely proportional to it's cross sectional area.
2. The area of cross-section of the conductor in increased.
On increasing the area of cross-section, resistance decreases. Thus is because resistance is inversely proportional to area.
3. The temperature of the conductor is increased.
With increasing temperature, the resistance of the wire increases as collisions within the wire increases and "slow" the flow of current... Since conductors typically display an increased resistivity with temperature increase, they have a positive temperature coefficient.
1. If Susan reproduced asexually what would be the outcome if she had offspring? What would they look like?
Answer:
They would look exactly like her, when you produce asexually your offspring is a clone of you. The offspring is genetically identical to the parent.
Explanation:
What does water's polarity cause?
which eletric configuration represents an atom of lithium in an excited state?
Answer:
2-0-1, 1-1-1, 0-1-2, but they must all equal 3 electrons in total
Explanation:
Write the electron configuration for Gold
Answer:
[Xe] 4f145d106s1
Explanation:
Plz help
When the equation Al + Br2 - AlBr3 is balanced, the coefficient for Al is
a 1
b 2
c 3
d 4
Answer:
c
Explanation:
The coefficient of Al in the balanced chemical equation has been 2. Thus, option B is correct.
The balanced chemical equation has been termed as the equation where the atoms of each element have been the same on the product and the reactant side.
The given chemical equation has consisted of 2 atoms of Br on the reactant side and 3 atoms of Br on the product side.
The atoms have been balanced with the addition of coefficient 3 on the reactant side, and 2 on the product side. This will give the 6 atoms of Br on both the products and the reactant's side.
[tex]\rm Al\;+\;3\;Br_2\;\rightarrow\;2\;AlBr_3[/tex]
The atoms of Al have become imbalanced. The Al atoms can be balanced by the addition of 2 as a coefficient on the reactant side. This will provide 2 atoms of Al on both the product and the reactant side.
[tex]\rm 2\;Al\;+\;3\;Br_2\;\rightarrow\;2\;AlBr_3[/tex]
The coefficient of Al in the balanced chemical equation has been 2. Thus, option B is correct.
For more information about coefficient in a balanced chemical equation, refer to the link:
https://brainly.com/question/238492
ANSWER THIS QUESTION AND GET 10 POINTS AND BRAINLEST
Answer:
Its highly basic
PLEASE HELP ME ASAP
Why is prerequisite knowledge important to high school students?
It helps you remember what you learned before.
It makes basic knowledge easier to learn.
It prepares you to learn at increasingly complex levels.
It helps you identify the behaviors new assignments require.
Answer:
Answer B
It makes basic knowledge easier to learn.
Explanation:
Assessing students’ prior knowledge allows an instructor to focus and adapt their teaching plan. For students, it helps them to construct connections between old and new knowledge.
In some types of decay, elements undergo transmutation. Which two
statements correctly describe this process?
A. The number of nucleons is the same before and after.
B. The parent element is different from the daughter element.
C. The number of atoms is conserved, but the number of nucleons
is not.
D. The atomic masses of the parent and daughter elements are the
same.
The statements which describes elements undergoing transmutation are the number of nucleons is the same before and after and the parent element is different from the daughter element.
What is an element?It is defined as a substance which cannot be broken down further into any other substance. Each element is made up of its own type of atom. Due to this reason all elements are different from one another.
Elements can be classified as metals and non-metals. Metals are shiny and conduct electricity and are all solids at room temperature except mercury. Non-metals do not conduct electricity and are mostly gases at room temperature except carbon and sulfur.
The number of protons in the nucleus is the defining property of an element and is related to the atomic number.All atoms with same atomic number are atoms of same element.
Learn more about element,here:
https://brainly.com/question/14347616
#SPJ5
why does an aluminum horseshoe bend but not break when a blacksmith pounds it into shape with a hammer?
Answer:
it's because aluminium is a ductile material
an electrical current only moves through a ____ circuit.
1.broken
2.new
3.closed
4.open
Answer:
Closed
Explanation:
Immunotherapy attacks cancer cells by boosting:
a. The rate of cell division
b. The number of benign tumors
c. The frequency of body scans
d. The body's own defenses
Answer:
I think its the
d. The body's own defenses
Help would be much appreciated! i'll mark brainliest
Answer:
group 2
Explanation:
Pls answer this question for points 15 and mark brainless pls easy I don’t know pls
Answer:
nitrate
Explanation:
nitric acid produces nitrate salt
Place these unknown pH test papers in order from most acidic to most alkaline.
Four pH indicator strips.
Answer:
In order of the colors of the pH test papers from most acidic solutions to most alkaline solutions, the colors of the pH test papers would be
Red > Orange/Pink > Purple > Blue
(Red) Most acidic (Blue)Most alkaline
Explanation:
We can use the different colors of pH test papers to determine the acidity or alkalinity of a solution.
Definitions
A pH test paper is a strip of indicator paper which changes colour when placed in acidic or alkaline solutions.
A solution is said to be acidic if it turns the colour of the pH test paper RED
A solution is said to be alkaline/basic if it turns the colour of the pH test paper BLUE
Color changes
If the pH test paper turns red, then the solution is a very strongly acidic solution with pH less than 3 ( ie pH between 1-3)
If the pH test paper turns orange or pink, then the solution is a weak acidic solution with pH greater than 3 ut less than 7
If the pH test paper turns purple, then the solution is a weak alkaline solution with pH greater between 8-11
If the pH test paper turns blue, then the solution is a very strong alkaline solution with pH between 11 - 14
Summary
Therefore, in order of color changes from the most acidic solutions to most alkaline solutions, the colors of the pH test papers would be
Red > Orange/Pink > Purple > Blue
Most acidic Most alkaline
Answer:
d<c<a<b
Explanation:
Select the correct answer from each drop-down menu.
A _ Is scientific knowledge established through direct observation and remalns constant. Sclentific knowledge can change
when scientists _
Answer:
A (Hypothesis) is scientific knowledge published through direct observation and remains constant scientific knowledge can change when scientists (generate hypothesis)
ANSWER THESE 5 MULTPLE CHOICE QUESTIONS!!!
I'LL GIVE 30 POINTS AND A BRAINIEST:)
Answer:
Q 1 oxygen 2 6
Q2 D
Q3 B
4 Mg
5 B
Explanation:
4. After virtual school you decide to make a milkshake. You know that the best
milkshake is made with 500 ml of milk and 120 g of chocolate ice cream.
Chocolate ice cream weighs 0.6 g/ml. How many liters of ice cream should you
add?
120 ml
2401
O 0.21
4.0 di
Answer:
The answer actually isn't all that complicated. 120 grams is equivalent to 120 milliliters, and 120 milliliters is equal to 0.21 liters, since you divide 120 by 1000.
How many neutrons, electrons, and protons are in carbon?
Answer:
six protons, six neutrons, and six electrons
Explanation:
Explanation:
Six protons (because its proton number, at the bottom, is 6)
Six electrons (because the number of protons and electrons in an atom is the same)
The symbol also tells us that the total number of protons and neutrons in a carbon atom is 12. Note that you can work out the number of neutrons from the mass number and atomic number. In this example, it is 12 - 6 = 6 neutrons.
Hope I was helpful!
True or false: Parasites help their host by providing nutrients to them
Answer:
true
Explanation:
Answer:
False..
Explanation: parasites do not provide you with anything good. The parasite obtains nutrition directly from the body of the host
A rigid cylinder with a movable piston contains a sample of hydrogen gas. At 350.
K, this sample has a pressure of 210. kPa and a volume of 9.50 L. What is the
volume of this sample at STP? (Round your answer to correct number of sig figs)
Answer: The volume of this sample at STP is 15.4 L
Explanation:
The combined gas equation is,
[tex]\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}[/tex]
where,
[tex]P_1[/tex] = initial pressure of gas = 210 kPa
[tex]P_2[/tex] = final pressure of gas = 101.3 kPa ( at STP)
[tex]V_1[/tex] = initial volume of gas = 9.50 L
[tex]V_2[/tex] = final volume of gas = ? ( at STP)
[tex]T_1[/tex] = initial temperature of gas = 350 K
[tex]T_2[/tex] = final temperature of gas = 273 K ( at STP)
Now put all the given values in the above equation, we get:
[tex]\frac{210\times 9.50}{350}=\frac{101.3\times V_2}{273}[/tex]
[tex]V_2=15.4[/tex]
The volume of this sample at STP is 15.4 L
Question 4
Calculate the mass of 7.1 x 1024 formula units of magnesium hydroxide, Mg(OH),
Answer: 69 g answer: I looked it up and it said .org, please give me brainliest!
Which sphere is dependent on all the other spheres in order to exist?
hydrosphere
lithosphere
atmosphere
biosphere
Answer:
biosphere
Explanation:
Living things need water (hydrosphere), chemicals from the atmosphere, and nutrients gained by eating things in the biosphere.
what is the most visible product of plate tectonic?
A.Mt.Apo
B.The Himalayas
C.Mt.Everest
Answer:
The Himalayas
Explanation:
If lithium and iodide form an ionic bond, which will be the anion
Answer:
lithium iodide is formed by sharing of electrons where is Potassium iodide is formed by opposite charges and electrostatic force between them.
Explanation:
This chart shows descriptions of the atoms for four different substances.
Which substance is a solid?
Object 1
Object 2
Object 3
Object 4
