Answer:
true
Explanation:
CO has two C-O bonds. The dipoles point in opposite directions, so they cancel each other out. Thus, although CO₂ has polar bonds, it is a nonpolar molecule. Therefore, the only intermolecular forces are London dispersion forces.
Iron has a known density of 7.87 g/cm3. What would be the mass of a 2.5
cm3 piece of iron?
WILL GIVE BRAINLIEST FOR THE RIGHT ANSWER!!!!!Which elements can form diatomic molecules joined by a single covalent bond?
A. hydrogen only
B. halogens only
C. halogens and members of the oxygen group
D. hydrogen and the halogens only
Answer:
b
Explanation:
that's the answerer
what are three uses of oxygen ?
Answer:
Production Of Steel Plastics and textiles
Explanation:
It is many more etc
HELP I HAVE TO SUBMIT IN 5 MINS!!!!!!! :( I HAVE NO IDEA!!!
May someone pls help me with this!
Answer:
Explanation:
1. Chemistry
2. Atoms
3. Anode
4. Cathode
The amount of matter in an object is its
OA. Volum
OB. mass
Oc. density
OD. charge
what would be the colour of litmus in sodium carbonate?
will make brainliest
Answer:
the color of the litmus paper will turn into blue color because sodium carbonate is basic in nature
Help, and fast! I really need an answer to this.
Answer:
Explanation:says these bars are like co vid i get em right off teh bat
A can of soda contains many ingredients, including vanilla, caffeine, sugar, and water. Which ingredient is the solvent? caffeine sugar vanilla water
Answer:
Water
Explanation:
Water is universal solvent it can disolves other things
From the can of soda containing many ingredients, including vanilla, caffeine, sugar, and water, the solvent is water.
What is a solvent?A solvent is a substance that dissolves other substances. This solvent is usually in liquid form.
Water is universal solvent, this implies that water dissolves almost every substance.
Thus, from the can of soda containing many ingredients, including vanilla, caffeine, sugar, and water, the solvent is water.
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The bond order is equal to the number of the bonding pairs of electrons in an
ionic bond.
OA. True
OB. False
Answer:
False
Explanation:
Just trust up I just did it
can someone help me please.
Answer:
ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
Explanation:
ccccccccccccccccccccccccccc
How does the ionosphere help radio transmission?
Explanation:
ionosphere can reflect radio waves directed into the sky back toward the Earth
why is the symbol [Ar] used in the electron configuration of potassium, and what does it represent?
Answer:
To denote a stable inner configuration and it represents argon
Explanation:
The symbol [Ar] used in the electron configuration of potassium represents the inner electronic configuration of the element.
This argon atom is stable octet with completely filled shells. Most noble gases are used to write the electronic configuration of other atoms. The inner atomic orbitals of elements are similar to those of nearby noble gases.
Ar is Argon with a configuration of 1s² 2s² 2p⁶ 3s² 3p⁶So, this configuration is stable and it the inner configuration of potassium excluding the outermost orbitals.someone please give me a sentence using “chemical bond”
Answer:
Rust, iron oxide, is weak mechanically although its chemical bonds are strong.
Explanation:
The age of the seafloor __________as you move away from the mid ocean ridges to deep ocean trenches
A decreases
B increases
C does not change
Answer:
stays the same
Explanation:
because the ocean floor usually doesn't spread instead the ocean floor plunges into deep under water canyons called deep ocean trenches.
Step 6: Measuring the Volume of Air Near 40°C
Temperature of gas: 40
COMPLETE
Height of the column of gas: 6.7
cm
Volume of gas (V =)
Temperature of gas: 303K
help me find out how to get the volume !!! pleaseeee
The volume using the cylinder formula : V=πr²h
Further explanationCharles's Law
When the gas pressure is kept constant, the gas volume is proportional to the temperature
[tex]\tt \dfrac{V_1}{T_1}=\dfrac{V_2}{T_2}[/tex]
This experiment is an illustration of Charles's law, to determine the relationship between temperature and gas volume
If a certain amount of gas is heated, the volume will increase
So in this experiment, the temperature was changed as an independent variable and tube volume as a fixed variable
Because the tube is cylindrical, to find the volume using the cylinder formula
[tex]\tt V=\pi.r^2.h[/tex]
Meanwhile, to find the radius, you can use a caliper to measure the diameter of the tube and the result will be divided by 2
Answer:
1. Temp of gas 40C, Height of the column of gas 6.7
2. Temp of gas 313K, Volume of gas 0.84
Explanation:
Just answered on Edge
ANSWER ASAP What are the ions present in the compound MgO? * 1
(1 Point)
Mg2+ and O-
Mg2- and O2+
Mg+ and O-
Mg2+ and 02-
Answer:
mg+ and O-
Explanation:
HOPE IT HELPS
reduces frictions creation of thermal energy
A: lubricant
B: electric heater
C: cell phone
Convert 48.5 grams of water to moles of water
Answer:
2.70 mol of water.
Explanation:
divide the given mass by the molar mass of water. 48.5 / 18.016g = 2.70 mol water.
I need help on these 3 questions really fast
i’ll give brainliest!!!! QUICK
Answer:
10. The wavelength of the color red is 650 × 10⁻⁹ m
11. The frequency of the color red is approximately 4.6122 × 10¹⁴ Hertz
12. The corresponding energy is approximately 3.058 × 10⁻¹⁹ J
Explanation:
10. Given that the wavelength, λ, of the color red is 650 nm, and one nanometer, nm = 10⁻⁹ m, we have;
The wavelength of the color red = 650 × 10⁻⁹ m
11. The frequency, v, of the color red is obtained from the relation, v = c/λ
Where;
c = The speed of light = 299,792,458 m/s
∴ v = 299,792,458/(650 × 10⁻⁹) ≈ 4.6122 × 10¹⁴ Hertz
12. Given that energy emitted by light, E = h × v, where E = 6.63 × 10⁻³⁴ J/s, we have;
E = 6.63 × 10⁻³⁴ J·s × 4.6122 × 10¹⁴ Hz ≈ 3.058 × 10⁻¹⁹ J
Therefore, the corresponding energy, E ≈ 3.058 × 10⁻¹⁹ J.
Solvent: Will give brainliest
Answer:
Solvent is 1.00 liter of water.
Answer:
It would be the water i think rlly srry if im wrong thats just what i got
Explanation:
because a solvent would be the one dissolving
how many atoms are there in 1g of argon the Avogadro constant is 6.02 x 10^23 per mole relative atomic mass (Ar): AR=40
Answer:
ow many atoms are there in 1g of argon the Avogadro constant is 6.02 x 10^23 per mole relative atomic mass (Ar): AR=40Explanation:
The number of atoms of argon in 1g of argon is 1.5 × 10²² atoms
From the question,
We are to determine the number of atoms present in 1g of argon.
To determine this,
First we will calculate the number of moles of the 1g of argon
From the formula
[tex]Number\ of\ moles = \frac{Mass}{Atomic\ mass}[/tex]
From the given information
Mass of Argon = 1g
Atomic mass of Argon = 40g/mol
∴ Number of moles of Argon = [tex]\frac{1}{40}[/tex]
Number of mole of Argon = 0.025 mole
Now,
For the number of atoms of argon present
Using the formula
Number of atoms = Number of moles × Avogadro's constant
∴ Number of atoms of argon present = 0.025 × 6.022×10²³
Number of atoms of argon present = 1.5055 × 10²² atoms
Number of atoms of argon present ≅ 1.5 × 10²² atoms
Hence, the number of atoms of argon in 1g of argon is 1.5 × 10²² atoms
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What's the final overall charge for sodium and fluoride ?
Answer:
Sodium fluoride is conceived to be composed of equal numbers of
Na+ and F− ions that are electrostatically bonded together in an extended, non-molecular array. And therefore sodium fluoride is neutral.
Explanation:
Calculate the specific heat of glass from the following data. The temperature of a piece of glass with a mass of 65 g increases by 26°C when it absorbs 840 J of heat energy.
Answer:497J/kg/K
Explanation:
Use the equation: Q=mS◇T
According to specific heat capacity, the specific heat of glass is 0.4970 J/gK.
What is specific heat capacity?Specific heat capacity is defined as the amount of energy required to raise the temperature of one gram of substance by one degree Celsius. It has units of calories or joules per gram per degree Celsius.
It varies with temperature and is different for each state of matter. Water in the liquid form has the highest specific heat capacity among all common substances .Specific heat capacity of a substance is infinite as it undergoes phase transition ,it is highest for gases and can rise if the gas is allowed to expand.
It is given by the formula ,
Q=mcΔT
Substituting values in above equation, c=Q/mΔT, C=840/65×26=0.4970 J/gK.
Thus, the specific heat of glass is 0.4970 J/gK.
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what is the reaction type of 3ZnS+ 2AlP = 1Zn3P2 + 1Al2S3 ?
Answer: double displacement
Explanation:
A double displacement reaction is one in which exchange of ions take place. The salts which are soluble in water are designated by symbol (aq) and those which are insoluble in water and remain in solid form are represented by (s) after their chemical formulas.
The balanced chemical equation is:
[tex]3ZnS+2AlP\rightarrow Zn_3P_2+Al_2S_3[/tex]
Thus as ions get exchanged , it is double displacement reaction.
how many electrons elements are present in period 2 ?
Susie is in the kitchen making brownies. She melts butter in the microwave, turns on the oven to preheat, and uses the electric mixer all at the same time. Which best explains how Susie can turn off without the other appliances turning off as well?
Answer:
A.
The circuits are wired in series, and when one appliance turns off, the others can still run.
B.
The circuits are wired in parallel, and when one appliance turns off, the others can still run.
C.
The circuits are wired in series, and when one appliance turns off, the others will switch to parallel circuits for power.
D.
The circuits are wired in parallel, and when one appliance turns off, the others will switch to series circuits for power.
Explanation:
The answer is b i just took it
HELP ME PLEASE !!! I.D.K WHAT TO DO :((( Will mark brainliest please !!
Answer:
bri me jose my new account
Explanation:
What is a Conclusion?
A. What you figure out by doing an experiment
B. the group that does not take part in the Experiment
C. The data that you record during an Experiment
D. What you think is going to happen in an Experiment.
Answer:
A
Explanation:
using process of elimination, B would be, and I forget, but I think it's the controlled variable or one type of variable. C would be analysis or just data I guess. and D would be hypothesis
Both the stomach and the small intestine are involved in the digestion of food.
The churning of food by stomach muscles and peptidase enzymes in the small
intestine both break food molecules into smaller molecules.
Which statement best describes changes to food during digestion?
Answer: I think the answer is The muscle contractions result in physical changes, while the action of the peptidase results in chemical changes.
Explanation: Because the muscles would make the food smaller and the enzymes have a chemical change to it because it changes the molecules in the food.
The chemical processes in food digestion results in the formation of new
substances.
The statement that best describes the changes in food during digestion is;
The churning of the food is a physical process, which results in physical changes while the peptidase results in chemical changes of the food.
Reasons:
The given processes in the digestion of food are;
Stomach: Food churning is the process by which the small intestine vigorously turns ingested food.
Small intestine: The action of the peptidase enzyme is to increase the rate of the digestion of food.
Therefore;
The churning of the food is a physical process, which results in physical changes while the peptidase results in chemical changes of the food.
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The possible question options obtained from a similar question online are;
The churning of the food and peptidase action both results in chemical changes.The churning of the brings about a chemical change, while the peptidase results in a physical change.The churning action brings about physical change, while the peptidase brings about chemical change.Both the churning action and the action of the peptidase result in chemical change.