Which of the following is NOT a combination reaction?
a NO + O2 + NO2
b Cr + Cl2 + CrCl3
C CH, + O2 + CO2 + H20
d C2H4 + H2 + C2H6

Answers

Answer 1
This answer should be B

Related Questions

The genetic information found in DNA, chromosomes, and determines
A. the traits of the organism
B. the organism as an animal
C. the safety of the nucleus
D. the type of cell

Answers

Answer:

a

Explanation:

the traits of the organism

The unique shape of DNA allows what

Answers

Answer: to copy itself during cell division

Explanation:

The inflation of airbags is due to the breakdown of a single chemical substance into two separate substances.

Two molecules of sodium azide (NaN3) break down into sodium (Na) and nitrogen gas (N2) during the reaction.

How many sodium (Na) atoms are produced in the reaction?

1 Na atom
2 Na atoms
3 Na atoms

Answers

Answer:

The correct answer would be

B. 2 Na atoms

Explanation:

As seen in the picture below,

Calculate the concentration:

2a) 45g of sodium hydroxide in 3dm3 of solution.

2b) 0.256g of sodium chloride in 500cm3 of solution.

Answers

Answer:

2a) 15 g/dm3

2b) 0.512 g/dm3

Explanation:

Use the concentration = mass/volume equation.

PLEASE HELP!! Is this an element or compound?
copper (ll). oxide (CuO)
Please hurry!!

Answers

Answer: Compound

Explanation:

Copper(II) oxide or cupric oxide is the inorganic compound with the formula CuO. A black solid, it is one of the two stable oxides of copper, the other being Cu₂O or copper(I) oxide. As a mineral, it is known as tenorite.

Which diatomic molecule (H2, N2 or O2) forms the strongest bond and why

Answers

Answer:

Hydorgen will.

Because hydrogen has 1 as valency.

Which group of microorganisms has the ability to mutate?

Answers

I think it’s viruses .

True or false: Heterotrophs need to go find and eat food.?


:FALSE

:TRUE

Answers

Answer:

Explanation:

Heterotrophs cannot make their own food, so they must eat or absorb it. For this reason, heterotrophs are also known as consumers. Consumers include all animals and fungi and many protists and bacteria. They may consume autotrophs or other heterotrophs or organic molecules from other organisms

how many molecules are there in 0.45 moles of so3

Answers

Answer:

2.71

Explanation:

Solutions of potassium chloride and silver nitrate are mixed.

Answers

Answer:

A solution of potassium chloride when mixed with silver nitrate solution forms an insoluble white substance silver chloride.

Explanation:

:)

how heart attacks and Strokes caused by cholesterol​

Answers

With high cholesterol, you can develop fatty deposits in your blood vessels. Eventually, these deposits grow, making it difficult for enough blood to flow through your arteries. Sometimes, those deposits can break suddenly and form a clot that causes a heart attack or stroke.

Answer:

Cholesterol is a waxy substance found in your blood. Your body needs cholesterol to build healthy cells, but high levels of cholesterol can increase your risk of heart disease.

With high cholesterol, you can develop fatty deposits in your blood vessels. Eventually, these deposits grow, making it difficult for enough blood to flow through your arteries. Sometimes, those deposits can break suddenly and form a clot that causes a heart attack or stroke.

Explanation:

High cholesterol can cause a dangerous accumulation of cholesterol and other deposits on the walls of your arteries (atherosclerosis). These deposits (plaques) can reduce blood flow through your arteries, which can cause complications, such as:

Chest pain. If the arteries that supply your heart with blood (coronary arteries) are affected, you might have chest pain (angina) and other symptoms of coronary artery disease.

Heart attack. If plaques tear or rupture, a blood clot can form at the plaque-rupture site — blocking the flow of blood or breaking free and plugging an artery downstream. If blood flow to part of your heart stops, you'll have a heart attack.

Stroke. Similar to a heart attack, a stroke occurs when a blood clot blocks blood flow to part of your brain.

ILL GIVE 100 POINTS!!!HELP!! THIS IS FOR CHEM!!an object acted upon by an unbalanced force will accelerate in the direction of the force is newtons what law?

1:second law

2:first law

3:third law

Answers

it’s newton’s first law but that’s a physics question

When you watch a sunset, is the Sun really moving across the sky? What's happening?
(Science)

Answers

It is the earth spinning around its axis. It makes a complete turn every 24 hours. It turns toward the east

Which type of bonding forms due to electrical attractions between oppositely charged elements

Answers

Answer:

Explanation:

Ionic bond

Ionic bond, also called electrovalent bond, type of linkage formed from the electrostatic attraction between oppositely charged ions in a chemical compound.

2. Combine lead (II) nitrate and potassium iodide solutions.

Pb(NO3)2+ Kl →

2. Combine lead (II) nitrate and potassium iodide solutions.
Pb(NO3)2+ Kl →
3. Combine magnesium metal and hydrochloric acid solution.
Mg + HCl →
4. Electrolysis (splitting) of water.
H2O →
5. Burning magnesium.
Mg + O2 →

Answers

Answer:

Pb(NO3)2+ 2Kl →PbI2 + 2KNO3

Mg + 2HCl → MgCl2 + H2

4H2O → 4H^+ + 4OH^-

2Mg + O2 → 2MgO

Explanation:

This question has to do with the balancing of chemical reaction equations. The general rule for balancing chemical reaction equation is that the number of atoms of each element on the left hand side of the reaction equation must be equal to the number of atoms of the same element on the right hand side of the reaction equation.

This principle was followed in balancing each reaction equation above. For instance, in the burning of magnesium, there are two atoms of both magnesium and oxygen on either side of the reaction equation.

What is the molar mass of the following compound: C1H3P2

Answers

the molar mass is44.26

The following diagram represents the potential energy for the reaction:



The curves represent two possible reaction paths for the decomposition of ammonia, NH3. One can correctly conclude from the graph that the largest activation energy shown for the decomposition of NH3 corresponds to which labeled interval?

C
E
A
B
D

Answers

A is the answer I reckon

Answer:

Look in the picture ;)

Explanation:

x=2 and y=3
find the value of
3x + y
3x² - 4
solve this please ty​

Answers

Answer:

3x+y = 9

3x² - 4 = 8

Explanation:

3x+y

3(2)+3

9

3x2-4

3(2)^2-4

3

what is the mass in grams of 1.204x10^24 molecules of hydrogen gas (H2) ?

Answers

Answer:

4.03 g

Explanation:

The mass in grams of the hydrogen gas is 4.0 g

Stoichiometry

From the question,

We are to determine the mass in grams of the hydrogen gas.

First, we will determine the number of moles of hydrogen gas present.

Using the formula,

[tex]Number\ of\ moles =\frac{Number\ of \ molecules}{Avogadro's\ constant}[/tex]

From the given information,

Number of hydrogen molecules = 1.204 × 10²⁴ molecules

Thus,

Number of moles of hydrogen gas present = [tex]\frac{1.204 \times 10^{24} }{6.02 \times 10^{23} }[/tex]

Number of moles of hydrogen gas present = 2 moles

Now, for the mass of the hydrogen gas

Using the formula,

Mass = Number of moles × Molar mass

Molar mass of hydrogen gas = 2.016 g/mol

Then,

Mass of the hydrogen gas = 2 × 2.016

Mass of the hydrogen gas = 4.032 g

Mass of the hydrogen gas ≅ 4.0 g

Hence, the mass in grams of the hydrogen gas is 4.0 g

Learn more on Stoichiometry here: https://brainly.com/question/2861244

8. The most common element used in nuclear fission reactors is uranium. The three nuclides, U-233, U-235, and U-238, are isotopes of uranium because they have the same number of protons per atom and...*
(1) the same number of electrons per atom
(2) the same number of neutrons per atom
(3) a different number of electrons per atom
(4) a different number of neutrons per atom​

Answers

Answer:(D) different number of neutrons per atom

Explanation: Honestly, I just looked it up on Socratic.

In 2005, scientists used cells from a dog named Tai to produce a new puppy with DNA identical to Tai's.

What genetic technology was used?

Answers

Answer:

Cloning

Explanation:

This is the process of producing a organism genetically identical to the organism the cells came from.

Answer: cloning

Explanation:

Yes
OO
No
Balanced or Not Balanced? *
2 NaCl + 2 F2 → 2 NaF + 1 C12
Yes
No

Answers

Answer:

No, not well balanced

Explanation:

2Nacl+F2=2Naf+Cl2

A certain first-order reaction has a half-life of 20.0 minutes. How much time is required for this reaction to be 75% complete?

Answers

Answer:

X = 2

Explanation:

As you know, the rate of a first-order reaction depends linearly on the concentration of a single reactant. The rate of a first-order reaction that takes the form

6. Three ice cubes are placed inside a glass of hot chocolate. Which of the following best
explains the heat transfer occurring inside the glass?
bat abanslate
ITS NUMBER 6!!!
PLZZ HELP ASAP!!!

Answers

It’s the first 1 M yea it’s the first one

Elements are organized on the table according to their _____________ ___________ , usually found near the top of the square.

Answers

Answer:

atomic number

Explanation:

Elements are organized on the table according to their atomic number, usually found near the top of the square.

Answer:

by their atomic number

hope this helped

What causes heat or the transfer of energy from one object to another

Answers

Answer:

The answer is kinetic energy

Al2(SO4)3 + 6 K --- > 3 K2SO4 + 2 Al


In an experiment, 46.8 grams of aluminum sulfate is reacted to make how many grams of potassium sulfate?

Answers

The answer is 71.5g of potassium sulfate

P5-F2 + Ar --> ArF3
P5a- How many moles of F2 (Fluorine) are needed to produce 9 mole of ArF3 (Argon trifluoride)?
P5b- How many moles of Argon (Ar) are consumed in a reaction that consumes 5 moles of F2 (fluorine)?


I need the answers for the p5 part please help

Answers

Answer:

5a. 13.5 moles of F₂

5b. 3.33 moles of Ar.

Explanation:

We'll begin by writing the balanced equation for the reaction. This is illustrated below:

3F₂ + 2Ar —> 2ArF₃

From the balanced equation above,

3 moles of F₂ reacted with 2 moles of Ar to produce 2 moles of ArF₃.

5a. Determination of the number of mole of fluorine, F₂, needed to produce 9 moles of ArF₃.

From the balanced equation above,

3 moles of F₂ reacted to produce 2 moles of ArF₃.

Therefore, Xmol of F₂ will react to produce 9 moles of ArF₃ i.e

Xmol of F₂ = (3 × 9)/2

Xmol of F₂ = 13.5 moles

Thus, 13.5 moles of F₂ is needed.

5b. Determination of the number of mole of Ar needed to react with 5 moles F₂.

From the balanced equation above,

3 moles of F₂ reacted with 2 moles of Ar.

Therefore, 5 moles of F₂ will react with = (5 × 2)/3 = 3.33 moles of Ar.

Thus, 3.33 moles of Ar was consumed.

PLEASE HELP: 60 POINTS

Select all that apply!

The emission of a Beta particle has the effect of:


a change in mass of an electron emitted from the nucleus
decreasing mass by one unit
increasing mass by one unit
adding a proton to the nucleus
converting 1 neutron to 1 electron and 1 proton

Answers

the answer is “decreasing mass by one unit”

Which of the following could not be an empirical formula? a CH4 b Na2O c NaCl d H2O2

Answers

Answer:

C NaCl will not be an empirical formula.

Answer:

C naCl

Explanation:

it wouldnt be an empiricla formula

Other Questions
Find the measure of AB *14 cm24 cm10 cm140 cm Can someone please help me A time line of the countries that enter World War One The day was scorching hot and bone dry, the air smelled like burnt toast, and everyones nerves were on edge. Only Zeke was calm. He patrolled the perimeter, making jokes about..Continue the story please, at least 3 sentences or more Why can grasses not survive on the island yet? a - (n+y) = 10y + 32solve for y help pls! ill mark best answer brainliest Newton's law of gravitation is proportional to the inverse cube of the distance between the two objects. True False A line y intercept is 2 and it's slope is 2 what is its equation in slope intercept form Help me please please help me Which of the following sentences is a compound-complex sentence?Group of answer choicesAfter Abigail joined us at the restaurant, the dinner became much more enjoyable.David used to play a lot of tennis, but this year has been a different experience for him.Since I don't like the food prepared by the team, I'll eat elsewhere, but I won't tell anyone.The news surprised Francois because he never knew he was in the running for the award. According to a recent poll on the Prevention magazine Web "Most people (56%) reported that even though they are overweight, their doctor never discusses the role of weight in leading a healthy life. Only 14% indicated that it was not an issue because they are already in good shape." The Prevention magazine survey results are provided using _____ to present the statistics. Explain the process sleet goes through from the time it leaves the clouds to thetime it hits the ground I need help what is 1/4 ^ 4 what is monosachrayde HELP ME ASAP...FIND ANALOGIES IN THE POEM"Wandering As A Clouds"Our lives are but clouds wandering across a skyRestlessly drifting along with a tempestuous windSometimes billowing puffed up sometimes thinnedOr grey with darkened streaks of lightning flashing byThey speed with no mercy in the jetstream high aboveOr labouring they shed their heavy load upon the soil With cymbals' of crashing thunderthey bubble and boilYet with ageless beauty they're looked on with loveLike clouds our lives are full of wandering thoughtsThose times we feel happy or pain orlaugh or we weepWe play and we work and makeappointments we can't keepOf winning the lottery a cheque ending one and six noughtsAnd have dreams of wielding powerprestige or of loveBut spare a thought for those withmonotonous dreadWe all drift through this mortal lifeuntil we are deadAnd live in memories and history thatonce we were part ofWe are those wandering clouds in theheat of the dayWe start out as nothing just a fewgentle wisps that grow Shaped by the wheel of fortunetakes a throwas fateThen when our cloud evaporates we simply fade away Fill in the blank with the Spanish word that best completes the following sentence.Cuando hace sol, a mi familia le gusta ir a __________.la estrellala playaal saco de dormirla pesca During the we wanted to our country so there was no more slavery. A bulletin board is 11 feet by 6 feet. The area of the board is what square feet. el juego demesa>0000000What does it mean