1.05 Lab pls help(Measuring Physical Properties Lab Report)
Answer:
1.05 hopefully this helps
Does anybody know what the dependent and independent variables are?
Which of these bonds should be classified as ionic?
A.
Na-O
B.
C-S
C.
H-Cl
D.
Be-S
Answer:
Na-O
Be-S
Explanation:
ionic bonds= metal and non metal
Answer:
Na-O
Explanation:
i solved it in study island and i got this answer correct
Balance the Chemical Equations
MgF2 + Li2CO3---> MgCO3 + LiF
Please Help
Answer:
MgF2 + Li2CO3 ---> MgCO3 + 2LiF
Explanation:
Question 7 of 10
Which of the following elements has the largest first ionization energy?
A. Boron (B)
B. Oxygen (0)
C. Carbon (C)
D. Nitrogen (N)
ITEM BANK: Move to Bottom
Balance
Measured in Newtons
Measured in grams
Property of matter
Spring Scale
Weight
Both
Mass
Cugan 100
drag and drohte
Answer:
The scale reads the tension in the string. The tension in the string is 100 N. This is the force the string must exert up on either of the 100-N weights at either end of the string.
Nothing is moving, nothing is accelerating, so the net force on the spring is zero. Likewise, the net force on either of the 100-N weights is also zero. But that is another question. The spring scale does not measure the net force. The spring scale simply measures the tension, the magnitude of the force exerted by the string.
Explanation:
A compound contains carbon and hydrogen this compound goes through a combustion reaction such that compound y is produced from the hydrogen atoms in the reactant. What are compounds x and y
Answer:
x is CO2
y is H2O
Explanation:
An organic compound that contains carbon and hydrogen is called a hydrocarbon.
When a hydrocarbon is burnt in air (combustion) only two products are obtained; carbon dioxide and water. The carbon dioxide comes from the carbon component of the molecule while the water comes from the hydrogen component of the molecule.
Therefore, for a hydrocarbon CxHy we obtain; xCO2 and (x + 1)H2O as products.
Answer:
X is carbon dioxide, and Y is water.
Explanation:
I took the test.
what charged particle is produced during ionic bonds
Answer:
An ionic bond is formed by the complete transfer of some electrons from one atom to another. The atom losing one or more electrons becomes a cation or a positively charged ion. The atom gaining one or more electrons becomes an anion which is a negatively charged ion.
On any given day or night, what determines the visible phase of the moon
A. how much of the sunlit side of the moon is visible
B. the time of day or night that we look at the moon
C. how far the moon has rotated on its axis
D. how much of the moon is lit by the sun
Answer:
i think the answer is D if not its A
2C3H7OH + 9O2 --> 6CO2 + 8H2O
Determine the number of grams of CO2 produced from the reaction of 5.55 moles of C3H7OH?
a
1466 g
b
16.7 g
c
367 g
d
12.2 g
e
733 g
Please show work
Answer 12.2g is the answer
Uranium has three common isotopes. If the abundance of 234U is 0.0054%, the abundance of 235U is 0.7204% and the abundance of 238U is 99.2742%, what is the average atomic mass of uranium?
Answer:
237.9 amu
Explanation:
Given data:
Abundance of U-234 = 0.0054 %
Abundance of U-235 = 0.7204%
Abundance of U-238 = 99.2742%
Average atomic mass = ?
Solution:
Average atomic mass = (abundance of 1st isotope × its atomic mass) +(abundance of 2nd isotope × its atomic mass) + (abundance of 3rd isotope × its atomic mass / 100
Average atomic mass = (0.0054×234)+(0.7204×235) +(99.2742×238) /100
Average atomic mass = 1.2636+ 169.294+ 23627.2596 / 100
Average atomic mass = 23797.8172/ 100
Average atomic mass = 237.9 amu.
What takes place when a chemical change occurs
Answer:
In a chemical change, the atoms in the reactants rearrange themselves and bond together differently to form one or more new products with different characteristics than the reactants. When a new substance is formed, the change is called a chemical change.
Explanation:
hope this helps
When bonds between molecules or atoms are created, disrupted, or both, chemical changes result. This implies that a material is changed from one with a certain set of attributes into another with a different set of properties.
What is an atom ?Each atom is made up of a nucleus and one or more electrons that are linked to it. One or more protons and a significant number of neutrons make up the nucleus. Only the most prevalent kind of hydrogen is neutron-free. The smallest component of ordinary stuff that makes up a chemical element is an atom.
An atom's nucleus is surrounded by an area of electrons. The electrical charge of every electron is negative one. Protons and neutrons, which together make up an atom's nucleus, are made of quarks.
The atoms in the reactants rearrange and link with one another differently to create one or more new products that vary from the reactants in several ways.
Thus, When bonds between molecules or atoms are created, disrupted, or both, chemical changes occur.
To learn more about an atom, follow the link;
https://brainly.com/question/1566330
#SPJ2
whats the difference between a bonding electron domain and a nonbonding electron domain?
Answer: lone pair of electrons
Explanation: A bonding electron domain is a pair of electrons shared between two atoms and a nonbonding is a lone pair of electrons
The difference between the bonding electron domain and a nonbonding electron domain should be explained below.
Difference between bonding and non-bonding electron domain:A bonding electron domain refers to the region that lies between the two bonded atoms that comprise one or more pairs where the electrons should be bonded.
While on the other hand, the non-bonded electron contains on the single-atom also comprise of one pair of lone pair.
In this way, it should be differentiated.
Learn more about electron here: https://brainly.com/question/24401678
Which HTML tag is used to create a heading on a web page? (5 points)
HTML headings are defined with the <h1> to <h6> tags. <h1> defines the most important heading.
hope this helps ^^
The prefix "semi-" means "partly". Based on your knowledge of the properties of elements, which kind of element is most likely used to make semiconductors?
liquids
metalloids
metals
nonmetals
Answer:
metalloids
Explanation:
The kind of element most likely used to make semiconductors are the metalloids.
These elements have properties between those of metals and non-metals in that they are not truly metals and are partly non-metals.
Under certain conditions they show features of metals or non - metals. The class of these elements are the metalloids. They are used to make semiconductors which are major components of electronics.plz help me with this :)
Answer:
they are randomly moving
Explanation:
Answer:
B
Explanation:
Red shift indicates that stars are moving further away.
Find the number of moles if you have 1.2 x 1048 copper atoms.
Answer:
1.993 × 10^(24) moles
Explanation:
From avogadro's number, we have that;
1 mole of atoms contain 6.022 × 10^(23) atoms
Therefore, 1.2 x 10^(48) atoms of copper will contain;
(1.2 x 10^(48) × 1)/(6.022 × 10^(23)) = 1.993 × 10^(24) moles
I really need your guys help, I need to pass.
Answer:
Question 4 is 291.0346
Explanation:
how was bohr´s atomic model different from those of previous scientists
Answer:
Explanation:
Neils Bohr in 1913 put forward his own model of the atoms based on the quantum mechanics originally developed by Planck.
He assumed the Rutherford's model and suggested that the extranuclear space consists of electrons in specific spherical orbitals around the nucleus. His predecessors and contemporaries did not give this perspective to the atomic model. The orbits/energy levels are designated by letters K, L, M, N .... The maximum number of electrons that can be accommodated by an energy level is 2n² where n is the principal energy level.Answer:
It showed that electrons could jump from one path to another
Explanation:
quiz
How is gamma radiation produced?
Answer:
They are produced by the hottest and most energetic objects in the universe, such as neutron stars and pulsars, supernova explosions, and regions around black holes. On Earth, gamma waves are generated by nuclear explosions, lightning, and the less dramatic activity of radioactive decay.
Please help If You Are Able To. Where do these go?
Answer:
Sorry can't help
Explanation:
Cant help!
What type of reaction is this:
C + 02 --> CO2
Answer:
synthesis reaction
Explanation:
A + X --> AX
Answer:
Combustion reaction
Explanation:
The temperature of a city during a week was 35° C, 36°C, 34°C, 38°C, 40°C, 39°C and 44°C. What was the average daily temperature of the town for the week?
Answer:38°
Explanation:
PLEASE HELP ASAP Chet is creating a catapult that will allow him to propel a ball farther than he is capable of throwing it. As he is creating the device, he finds that that catapult launches the ball straight up into the air. The catapult should propel the ball up and forward to create a trajectory.
Which of the following is the best solution to this problem?
A.
leave the design as is because the ball goes higher than he can throw it
B.
make changes to the design to allow it to launch the ball a farther distance
C.
discard the device and begin the engineering process again from the start
D.
leave the design as is but perform more tests to see if the problem improves
Answer:
IM NOT COMPLETELY SURE BUT ITS ETHER A OR B IM SORRY ;//
Explanation:
Does SiO2 also equal Si2O4?
(silicon atom 1 oxygen atom 2 = silicon atom 2 oxygen atom 4?)
Answer:
7
Explanation:
that is the anwer of the question
WHICH OF THE FOUR COMPOUNDS HAS BONDS WITH THE GREATEST DEGREE OF POLARITY (MOST POLAR)?
Answer:
I NEED TO KNOW THIS TOO
Explanation:
IVE BEEN LOOKING FOR THE ANSWER
Question 10
Which of the following is a sign that you might be in an extremely unsafe situation?
A) you see frayed electrical cords on the machine you are asked to use
B) other workers are getting burned on the fryer that you are supposed to use
C) you are shown a forklift truck - something you have never operated before -
and told to move a heavy load of materials across the warehouse floor
D) only a) and c)
E) all of a), b), and c)
Answer:
Here it would be A,B and C because all the examples are violating safety precautions. They are all examples of un safe signs.
Hope this helps
Explanation:
PLZZ HELPPP
According to the chart below, which planet has the smallest inner core?
Mars
Jupiter
Venus
Earth
Answer:
The earth
Since it is shown in the chart that, Earth is inner corner is the smallest.
When sodium atoms (Na) and chlorine atoms (CT) join to make sodium chloride, or table salt, they form an ionic bond, Using this information, which pair of elements is most likely to form an ionic bond? O potassium (K) and fluorine (F) aluminum (AI) and aluminum (AD O sulfur (S) and oxygen (O) O calcium (Ca) and neon (Ne)
Answer:
D I'm pretty sure.
Explanation:
I'm taking the quiz right now and D makes the most sense.
Answer:
d
Explanation:
What time of the year can you see Scorpius
Answer:
In the northern hemisphere I believe, Scorpius is most visible by looking to the south during July and August around 10:00 PM. The constellation remains visible until mid-September. In the southern hemisphere, Scorpio appears very high in the northern part of the sky until close to the end of September.
Answer:
October 23 to November 21
Explanation:
Not entirely sure what you are asking. . .
If we're talking Scorpius as in:
Scorpius is one of the constellations of the zodiac and is located in the Southern celestial hemisphere. Its name is Latin for scorpion, and its symbol is. (Unicode ♏).
do activity for brainiest:)