Plz answer quickly with explanations. .....

Answers

Answer 1

Answer:

It would be gas b. The gas you are talking about is carbon dioxide and for the reaction to work the gas needs to be bubbled through into the lime water.

Explanation:

The carbon dioxide reacts with lime water which is a solution of calcium hydroxide to form the white precipitate of calcium carbonate CaCO 3.

Related Questions

Which functional group defines a ketone?

−NH

−PO4

−Na

=O

Answers

Answer =o
I just looked it up

The functional group that defines a ketone is =O and the correct option is option 4.

What are Ketones?

Ketones are a common functional group in organic chemistry. Ketones have important physiological properties. As a result, they are a part of several sugars and compounds involved in medicinal use such as cortisone, an anti-inflammatory.

In ketones, the carbonyl group has 2 hydrocarbon groups attached to it. These can be either the ones containing benzene rings or alkyl groups. Ketone does not have a hydrogen atom attached to the carbonyl group.

Therefore, the functional group that defines a ketone is =O and the correct option is option 4.

Learn more about Ketones, here:

https://brainly.com/question/4439718

#SPJ3

What are the units of measurement for atomic radius?

Answers

Answer:

Units used to measure atomic radius:

Angstroms (Å): This the most common unit used. Equivalent to 1.0 x 10-10 meters.

Nanometer (nm): Equivalent to 1.0 x 10-9 meters.

Picometer (pm): Equivalent to 1.0 x 10-12 meters.

Describe the location of the shoulder blade to the collarbone.

Answers

The answer is a. Anterior.

what element must combine with the metal for oxidation to take place?

Answers

lithium with oxygen

Lithium with oxygen

Most scientists recommend reducing carbon dioxide emissions. Less carbon dioxide in the atmosphere would be expected to?

Answers

Answer:

the air would be much cleaner and better for us to breath.

Explanation:

Calculate the molar mass of the following compounds in g/mol.
CH3CO2H

Answers

Answer:

60g/mol

Explanation:

By using nucleon numbers given on the periodic table, the mass of 1 mole of each element is:

C= 12g

H= 1g

O= 16g

Since molar mass is the sum of the masses of each element present in the compound,

Molar Mass (Mr) = 12+3(1)+12+16(2)+1 = 60g/mol

Which gas relights a glowing splint? *

C hydrogen
A ammonia
B carbon dioxide
D oxygen

Answers

Answer:

Oxygen

Explanation:

A glowing splint applied to a sample of gas "oxygen" will relight.

A transformer has ten turns of wire on the input side and 50 turns of wire on the output side. If the input voltage is 120 V, what will the output voltage be?

Answers

Answer:

600 V

Explanation:

The transformer equation helps us to calculate the relationship between the ratio of the number of turns of coils in the input and output sources to their respective voltages.

It states that the ratio of the secondary to primary voltages in a transformer equals the ratio of the number of loops in their coils.

Number of input turns/Number of output turns = input voltage/output voltage

10/50 = 120V/output voltage

output voltage = 120 V/0.2

Output voltage = 600 V

Help please thanks you

Answers

Explanation:

Ok so water is H2O and cabon dioxide in the air is CO2, so the water goes through the carbon dioxide and makes acid rain H2SO4.

Now we have our limestone which is CaCO3.

What happens is that the acid breaks apart our limestone into Ca2+ and CO3 2-. This then reforms into Calcium bicarbonate Ca(CO3)2.

Calcium bicarbonate is soluble in water and is hence washed away by the rain eroding the limestone.

How do the HOX genes in the paddlefish match the HOX genes in human

Answers

Answer:

Hox are transcription factors that are evolutionarily conserved across bilaterians and, therefore, they share sequence homology between paddlefish and humans .

Explanation:

The Hox genes represent a family of homeodomain transcription factors that play roles in the development of the axial and appendicular skeleton, being therefore critical during embryonic development. In this case, the human Hox genes are homologous to homeobox genes found in the paddlefish. These genes have a DNA-binding domain of 60 amino acids which is evolutionarily conserved in bilaterian species including paddlefish and human species.

Why is rusted iron an example of an oxidation reduction reaction A. Electrons are exchanged B. Heat is generated C. Iron combines with oxygen D. Iron becomes molten E. Oxygen is used

Answers

Answer:

Explanation:

Oxygen & water form rust

What forces does an electrically charge object experience because of its charge?

Answers

Answer:

electric force and newtons law

Explanation:

Assign an oxidation number to each element in the reaction.
CO(g) + 2H2(g)
CH3OH(g)
In CO, the oxidation number of C is
and that of O is
In H2, the oxidation number of H is
In CH3OH, the oxidation number of C is
that of O is
and that of H is
DONE

Answers

Answer:

In CO, the oxidation number of carbon is +2 and that of oxygen is -2

In H2 the oxidation number of hydrogen is zero

In CH3OH, the oxidation state of carbon is -2, that of hydrogen is +1 and that of oxygen is -2

Explanation:

The oxidation number of an element in any compound is defined as the electrical charge that the element appears to have as determined by a set of arbitrary rules. These rules make it possible to calculate the oxidation number of an atom in a compound given the oxidation numbers of other atoms in the same compound.

In CO, the oxidation number of carbon is +2 and that of oxygen is -2

In H2 the oxidation number of hydrogen is zero

In CH3OH, the oxidation state of carbon is -2, that of hydrogen is +1 and that of oxygen is -2

What is the best example of electromagnetic energy in everyday life

Answers

Electromagnetic Radiation. Do you listen to the radio, watch TV, or use a microwave oven? All these devices make use of electromagnetic waves. Radio waves, microwaves, visible light, and x rays are all examples of electromagnetic waves that differ from each other in wavelength.

Answer:best

Explanation:

Best

Which of the following is NOT an
example of matter?
a. clouds
b. gasoline
С. ice
d. light

Answers

Answer:

Which of the following are not examples of matter, well clouds are matter, gasoline is matter, ice is matter, so it would be light.

Which term should replace the question mark?

Answers

Answer:

Can you explain a little bit more?

Explanation:

An independent country in which people share a common culture is called
an aristocracy.
an ethnic group.
a nation-state.
a polity.

PLease help

Answers

Answer is: a nation-state

Proof: Terms in this set (133) An independent country in which people share a common culture is called. A nation-state. The right to exercise supreme power and authority over a region, a group, or oneself. Sovereignty.

Find the molar mass of s6

Answers

Moles: 1

Weight, g : 192.3900

Answer:

Moles: 1

Weight, g : 192.3900

Explanation:

An iron nail with a mass of 12 grams absorbs 12 Joules of heat. If the nail was initially at 25°C, what is the final temperature?

Answers

The answer to “An iron nail with a mass of 12 g absorbs 15 J of heat. If the nail was initially at 28 °C, what is its final temperature?” is broken down into a number of easy to follow steps, and 27 words. Since the solution to 81P from 3 chapter was answered, more than 4841 students have viewed the full step-by-step answer. The full step-by-step solution to problem: 81P from chapter: 3 was answered by , our top Chemistry solution expert on 05/06/17, 06:45PM. Introductory Chemistry was written by and is associated to the ISBN: 9780321910295. This textbook survival guide was created for the textbook: Introductory Chemistry, edition: 5. This full solution covers the following key subjects: nail, iron, heat, initially, final. This expansive textbook survival guide covers 19 chapters, and 2045 solutions.

A5.3 * 1012 kg satellite is 1.800 m from another satellite that has a mass of 3.5 x 108 kg. What is the gravitational
force between the satellites?
3.82 x 10N
6.87 x 107N
5.72 % 1014 N
1.03 * 1018 N

Answers

Answer:

The gravitational force between the satellites is [tex]3.81\times 10^{10}\ N[/tex].

Explanation:

Mass of satellite 1, [tex]m_1=5.3\times 10^{12}\ kg[/tex]

Mass of satellite 2, [tex]m_2=3.5\times 10^8\ kg[/tex]

Distance between masses is 1.8 m

It is required to find the gravitational force between the satellites. The formula used to find the force between two masses is given by :

[tex]F=G\dfrac{m_1m_2}{r^2}\\\\F=6.67\times 10^{-11}\times \dfrac{5.3\times 10^{12}\times 3.5\times 10^8}{(1.8)^2}\\\\F=3.81\times 10^{10}\ N[/tex]

So, the gravitational force between the satellites is [tex]3.81\times 10^{10}\ N[/tex].

Which state of matter is by high density and definite shape?

A. Solid

B. Liquid

C. Both Liquid and Solid

D. Gas

Answers

Both liquids and solid

Answer:

Solid

Explanation:

Solid has a definite shape and its molecules have high density.

Hope this will help you.

2
3
4
5
6
What did Virchow observe that led him to determine one of the main components of cell theory?

Answers

Answer:

In the year 1850, Rudolf Virchow was studying cells under a microscope, when he observed that cells were dividing and forming new cells. Realizing what he had observed, he understood that living cells reproduce new cells through division

What one advantage of owning a solar car ?

Answers

Answer:

You have no fuel cost and has low cost Maintenance

Explanation:

What is the percent by mass in a solution with 10.0 grams of solute and 25.0 grams of solvent?

Answers

Answer:

Percent by mass of solute is (10/35) x 100 = 28.57%

Percent by mass of solvent is (25/35) x 100 = 71.43%

Explanation:

10.0 grams of solute

25.0 grams of solvent

Total Mass = 35 grams

percent by mass = (Mass A / Total Mass) x 100

Percent by mass of solute is (10/35) x 100 = 28.57%

Percent by mass of solvent is (25/35) x 100 = 71.43%

The symbol ∆hf0 stands for

Answers

Answer:

standard heat of formation for compound

Explanation:

Calculating pH
DETERMINE THE PH OF EACH SOLUTION
» [H] = 1 x 10-9M
pH =
» POH = 3
pH =
» [OH ) = 1 x 10-2 M
pH =
» POH = 7
pH =

Answers

Answer:

The answer to your question is given below

Explanation:

1. Data obtained from the question include:

Hydrogen ion concentration, [H+] = 1x10^-9M

pH =..?

pH = - log [H+]

pH = - log 1x10^-9

pH = 9

2. Data obtained from the question include:

pOH = 3

pH =.?

Recall:

pH + pOH = 14

pH + 3 = 14

Collect like terms

pH = 14 - 3

pH = 11

3. Data obtained from the question include:

Hydroxide ion concentration, [OH-] = 1x10^-2M

pH =..?

First, we shall determine the pOH. This is illustrated below

pOH = - Log [OH-]

pOH = - Log 1x10^-2

pOH = 2

Finally, we can obtain the pH as follow:

pH + pOH = 14

pOH = 2

pH + 2 = 14

Collect like terms

pH = 14 - 2

pH = 12

4. Data obtained from the question include:

pOH = 7

pH =.?

Recall:

pH + pOH = 14

pH + 7 = 14

Collect like terms

pH = 14 - 7

pH = 7

A student is trying to dissolve 20 grams of sugar in a beaker containing 250 milliliters of water at room temperature. What can the student do to make the sugar dissolve faster in the water?

Answers

Answer:

They can warm up the water. Sugar dissolves much faster in warm/hot water.

A perfect example of this is when you put sugar in your hot coffee/tea -> it will dissolve almost immediately. If you put sugar in cold water, you will have to stir it for quite some time before it dissolves.

When potassium chromate (K2CrO4) is added to a solution containing 0.500 g silver nitrate (AgNO3), solid silver chromate (Ag2CrO4) is formed. a) Determine the theoretical yield.

Answers

Answer:

Theoretical Yield = 0.4882 grams

Explanation:

Potassium Chromate = K2CrO4 Molar mass: 194.1896 g/mol

Silver Nitrate = AgNO3 Molar mass: 169.87 g/mol

Silver(I) Chromate = Ag2CrO4 Molar mass: 331.73 g/mol

Potassium Nitrate = KNO3 Molar mass: 101.1032 g/mol

K2CrO4 + 2AgNO3 = Ag2CrO4 + 2KNO3

Potassium Chromate + Silver Nitrate = Silver(I) Chromate + Potassium Nitrate

Ratio 1:2 = 1:2

0.5g AgNO3

AgNO3 Molar mass: 169.87 g/mol

2AgNO3 = 339.74grams

0.5/339.74 = 0.0014717

Ag2CrO4 Molar mass: 331.73 g/mol

0.4882 grams

Theoretical Yield = 0.4882 grams

20. Which of the following is NOT true for the atoms 13N, 14N, and 'N?
a. They all have the same mass number.
b. They are isotopes.
c. They all have the same atomic number.
d. They all have 7 protons.
e. They all have 7 electrons.

Answers

Answer:

a ,e

Explanation:

math

They all have the same mass number

This part of the nervous system is the decision-
maker for the rest of the nervous system. What is it called?
o Brain
o Sensory Neurons
O Motor Neuron
o Spinal Cord
Please help me thank you

Answers

Your answer is brain

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