Chemistry College

Which element is malleable and ductile?
A. Phosphorus
B. Argon
C. Sodium
D. Chlorine
Can you help me answer all of these I’ll mark brainliest

Which Element Is Malleable And Ductile?A. Phosphorus B. ArgonC. SodiumD. Chlorine Can You Help Me Answer

Answers

Answer 1

Answer:

C.) Sodium

Explanation:

Sodium is an "Alkali Metal"

Related Questions

Which explains why many places on Earth experience four seasons each year rather than just
two?
A As Earth orbits around the Sun, the axis changes its amount of tilt, which causes a change in
the amount of sunlight reaching Earth.
B Eastern and western hemispheres each experience a different season when Earth is at each
position shown and when it is 14 and 34 around its orbit.
C Halfway between the positions shown, the amount of solar energy received is less than when
the axis is pointed toward the Sun, but more than when the axis is pointed away from the
Sun.
D When Earth is 14 and 3/4 around its orbit, the northern hemisphere points directly at the Sun.

Answers

Answer:

d is the right one I think

Predict the chemical formula for the ionic compound formed by NH4+ and POsub4exponent3-

Answers

Formula 1!!!!!!!!!!!!!!!!!!!!!!!!!!

6. What is a solution an example of?
A) element
B) heterogeneous mixture
(C)compound
D) homogeneous mixture

Answers

Answer:

solution is a homogeneous mixture of two or more component

Answer:

B) heterogeneous mixture

Explanation:

What is the concentration of sodium ions in 0.185 M Na2CO3?​

Answers

Answer:

0.370 M

Explanation:

Step 1: Given data

Molar concentration of the sodium carbonate solution: 0.185 M

Step 2: Write the balanced dissociation equation

Sodium carbonate is a strong electrolyte that dissociates according to the following equation.

Na₂CO₃(aq) ⇒ 2 Na⁺(aq) + CO₃²⁻(aq)

Step 3: Calculate the molar concentration of sodium ions

The molar ratio of Na₂CO₃ to Na⁺ is 1:2.

0.185 mol Na₂CO₃/L × 2 mol Na⁺/1 mol Na₂CO₃ = 0.370 mol Na⁺/L

The reaction used to produce solid iron ore is below.

Fe2O3 (s) + 3CO (g) à 2Fe (s) + 3CO2 (g)

The reaction of Fe2O3 with CO has a theoretical yield of 129 grams solid Fe. In the laboratory, your reaction produces 87.4 grams of solid Fe. What is the percent yield?

Answers

% yield = (actual yield / theoretical yield) x100
(87.4 / 129) x100 = 67.75%

Question 1 S
A student left a sealed jar of water outside her home. Water can be a solid liquid or gas When she put it outside the water was a
solid Twelve hours later, the water had changed phase and was a liquid. What happened to the water molecules?
A Before the student left, the molecules were moving in place. After the molecules were moving around each
other
B Before the student left, the molecules were moving around each other After the molecules were moving away
from each other.
C Before the student left the molecules were moving around each other. After the molecules were moving in
place
D. Before the student left the molecules were moving away from each other. After the molecules were moving
around each other

Answers

Answer:

A

Explanation:

Before the student left, the water molecules were moving in place, then after that, the water molecules were moving around each  other.

Option A is correct.

Water can exist in three phases of matter as solid, liquid, or gas. In the solid state, the constituent of the particles is closely packed together.

In the liquid state, the particles are held together by intermolecular forces and they move around each other.

In the solid state, before the student left the sealed jar outside her house, the particles molecules of the water are moving in place closely packed together, but after a period of time, the molecules start to move around each other.

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How many moles are in 5.34 x 10*21 particles of Nitrogen?

Answers

Download the app photo math I thinks that gonna hel

Which of the following elements is a gas at room temperature?

Answers

Answer:

hydrogen, nitrogen, oxygen, fluorine, chlorine

Which kingdom contains both unicellular and multicellular eukaryotic organisms?



Animalia


Fungi


Plantae


Bacteria

what is is pls

Answers

The answer is B). Fungi

I’m sorry if this is wrong but I’m pretty sure it’s not

Which statement describes the relationship between bonding and surface tension?
A. The more hydrogen bonds a molecule can make, the lower the surface tension.
B. The more jonic bonds a molecule can make, the higher the surface tension
C. The more hydrogen bonds a molecule can make, the higher the surface tension.
D. The more ionic bonds a molecule can make, the lower the surface tension.​

Answers

Answer: c

Explanation:

Answer:

C. The more hydrogen bonds a molecule can make, the higher the surface tension.

Explanation:

What does the image represent?

Answers

Answer:

ether

Explanation:

the answer is either 90(7272

WILL GIVE BRAINLIEST!!!


Use this media to help you complete the question.

There are three known forms of hydrogen. These forms are called (isotopes, ions, copies) of each other. Each of these forms will have the same number of (neutrons, protons, electrons) but different numbers of (neutrons, protons, electrons) in their nuclei.

Answers

Answer:

Isotopes, protons, netrons

Explanation:

Answer:

There are three known forms of hydrogen. These forms are called Isotopes of each other. Each of these forms will have the same number of protons but different numbers of neutrons  in their nuclei.

Explanation:

formula for trichlorine tetroxide

Answers

Molecular formula is CIO3


If false rewrite the statements to make them correct True or False.
1. Only particles in the solid state are in motion.
2. The particles of a solid have more energy than those of a gas.
3. In a glass of iced tea, tea is the solute.​

Answers

1. Only particles in the solid state are not in motion 2. The particles of a solid have less energy than gas 3. In a glass of iced tea the sugar in iced tea are the solvent and the water is the solute.

Which example is NOT a chemical change? *
A. Hydrogen peroxide bubbles in an open wound on your skin.
B. Piece of pizza digested when eaten.
C. Rotting Easter eggs. .
D. Dissolving salt in water.

Answers

Answer:

The answer would be D as no chemical change is occuring.

Explanation:

Answer:

D. Dissolving salt in water.

Explanation:

No chemical change is actually occurring when salt is added to water

A reaction that releases energy in the form of heat is called a/n

Answers

Answer:

Exothermic reaction!

Explanation:

Exo -> Releases Heat

Endo -> Absorbs Heat

Which statement describes an interaction between the biosphere and the atmosphere that is related to
photosynthesis?
• During photosynthesis, plant roots take in water from soil.
O During photosynthesis, plants take in carbon dioxide from the air.
O Through photosynthesis, energy stored in plants is released into the air.
O Through photosynthesis, energy stored in plants is transferred to humans who eat them

Answers

Answer:

O During photosynthesis, plants take in carbon dioxide from the air.

Answer: The answer is: During photosynthesis, plants take in carbon dioxide from the air.

Explanation: I have my ways ;>


When Copper metal is exposed to Oxygen gas, solid copper (11) oxide forms on the surface.
What is the formula for the following compound: Copper

Answers

Answer:

jjsydydbbeyxgxhx

Explanation:

nnhejjej

Which pair of elements will form an ionic bond?

Answers

Answer:  A pair of elements will most likely form an ionic bond if one is a metal and one is a nonmetal. These types of ionic compounds are composed of monatomic cations and anions

Explanation:

Why do not all rock types contain fossils?

Excessive heat and pressure can destroy fossils.
Fossils can only be created in certain places around the world.
Fossils cannot be created near volcanoes.
Fossils are too large to be found in igneous and metamorphic rocks.

Answers

Answer:

Igneous rocks form from molten rock, and rarely have fossils in them. Metamorphic rocks have been put under great pressure, heated, squashed or stretched, and fossils do not usually survive these extreme conditions. Generally it is only sedimentary rocks that

Explanation:

Hope it helps, some how.

Your welcome :)

What is the difference between a homogenous and a heterogeneous?

Answers

Answer:

Explanation:

A homogeneous mixture consists of one single phase while a heterogeneous mixture consists of two or more phases.

10. Benzene deactivating group is:
a. -OH
b. --CH3
c. -C2Hs
d.-CI​

Answers

Answer:

CH3

Explanation:

Write the chemical formula for the following structure. You can't write subscripts so just
do full size subscript numbers.

Answers

Answer:

H2O2

Explanation:

By numbering the atoms we know about that it’s Hydrogen Peroxide

Draw the structure of the product formed in the reaction of an epoxide with ethoxide ion. If more than one stereochemical product is possible, draw only one isomer.

Answers

Answer:

See explanation and image attached

Explanation:

The most common reaction of epoxide rings is the ring opening reaction. This ring opening reaction serves to relieve the stress in the ring.

Now, The first step in the acid catalysed epoxide ring opening reaction is the protonation of the epoxide.

This is now followed by the attack of the nucleophile. Subsequent deprotonation regenerates the acid catalyst and yields the product.

The structure of the product formed in the reaction of an epoxide with ethoxide ion is attached below as we get 2 substituted alcohol product.

What are epoxides?

Epoxides are comes under the category of ether, which are the three membered ring structure.

Due to its ring structure, strain or stress is present in the three membered ring which makes it available to react easily with nucleophile. Ethoxide ion acts as a nucleophile in this reaction which attacks on the electrophilic carbon of the epoxide and resulting into the break up of bond and opening of ring.

As a result of this reaction we get the 2 substituted alcohol as attached in the image.

Hence structure of the product is attached below.

To know more about epoxides, visit the below link:

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The definitive difference between speed and velocity is the consideration of _____.
A. variation
B. Direction
C. angles,

Answers

Direction, speed is a scalar quantity which has a magnitude but no direction. Velocity is a vector quantity which has a magnitude (size) and direction.

Answer: direction

Explanation:

This person is fishing in a small, freshwater body of water. This body of water flows into a larger body of water called a river. What is this small body of freshwater called?​

Answers

Answer:

Explanation:

The smallest body of water is the brook, a natural stream of water that is found aboveground and is often called a creek as well. A brook is usually a tributary (a small body of water that naturally flows into a large one) of a river, but this is not always the case.

Answer:

pond

Explanation:

What is true about matter?
A. Matter has mass and takes up space.
B. Matter has mass but does not take up space.
O C. Matter takes up space but does not have mass.
O
D. Matter does not have mass or take up space.

Answers

Answer:

A

Explanation:

Matter is always anything that can take up space and in order for something you can touch (matter is tangible) It has to have mass.

A

Matter has mass and takes up space

For the balanced equation shown below, how many moles of Al will react with 98.7 moles of CuSO4

Answers

Answer:

65.8 mol

Explanation:

Step 1: Write the balanced equation for the single displacement reaction

2 Al + 3 CuSO₄ → Al₂(SO₄)₃ + 3 Cu

Step 2: Establish the appropriate molar ratio

According to the balanced equation, the molar ratio of Al to CuSO₄ is 2:3.

Step 3: Calculate the number of moles of Al that will react with 98.7 moles of CuSO₄

98.7 mol CuSO₄ × 2 mol Al/3 mol CuSO₄ = 65.8 mol Al

A tree leaf appears to be green. Which statement explains why the leaf isn't a
blackbody radiator?
A. The leaf reflects light and does not emit it.
B. The leaf does not change temperature when it reflects light.
C. The leaf emits light but does not reflect it.
D. The leaf emits only blue and yellow light.

Answers

Answer: A- Like the comments in the other one,the answer is A.

Explanation: Leaves don't emit visible light.

The statement that explains why the leaf isn't a blackbody radiator is the leaf reflects light and does not omit it. The correct option is A.

What is a blackbody radiator?

A blackbody radiator is an object that absorbs all the electromagnetic radiation, of any wavelength and coming from any direction. This object does not emit any light to it. According to law, the good absorber is one who is also a good emitter.

The tree leaf is not a blackbody radiator, because it absorbs only green light and other lights are emitted by it, that's why it appears green. Whereas a blackbody radiator does not emit any amount of light even if the temperature will be increased.

Thus, the correct option is A. The leaf reflects light and does not omit it.

Learn more about a blackbody radiator, here:

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what is the characteristics of solid​

Answers

Answer:

they have there own shape that is not manipulated and  they are typically hard

Explanation:

Soil is made up of different things like, tiny particles of rocks, minerals. It can also have bits of decay of plants and animals. And water and air!
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