The half-life of carbon-14 is about ____________ years.

Fill in the blank.

Answers

Answer 1
The half-life of carbon-14 is about 5730 years
Answer 2

Answer:

5730 years

Explanation: for more on radiocarbon dating.) and hence explain why the amount of carbon-14 in the sample decays by half over any period of 5730 years.


Related Questions

please help ASAPPP
will mark brainliest!!!

Answers

Greetings!______________________________________Answer:[tex]OH^{-1}[/tex]WHY IS OPTION A NOT POLYATOMIC?

The polyatomic ions are those ions which has more than two atoms involved such as the other options than OH^-1 in the question. The OH^-1 ion is the diatomic ion because it has only 2 atoms

______________________________________HOPE IT HELPS!

Select The on that most applys


Will mark brainliest

Answers

Answer:

A and b

Explanation:

A is the answer hope this helped !

Electrons in Atoms
The (type here) of the atom is the most up-to-date model of the atom at this point.

Answers

Cloud model or Bohr Model

generally speaking, the Bohr model encapsulates the modern understanding of the atom. This model is often depicted in artwork showing a central atomic nucleus and oval lines representing the orbits of the electrons.

Bohr

The density of water is 1.00 g/mL. Which substance below can float on water?

Answers

Answer:

ice, air, ducks and fabric

Explanation:

its common sense

Calcium nitrate and calcium carbonate are both ionic compounds.

Calcium nitrate mixed with water behaves as an electrolyte.

Calcium carbonate mixed with water does not behave as an electrolyte.

Explain, in terms of solubility and movement of ions, this difference in behaviour​

Answers

Answer:

Calcium nitrate is soluble in water and dissociate into ions whereas calcium carbonate is insoluble and water and do not form ions.

Explanation:

An electrolyte is a substance which conducts electricity in molten form or when dissolved in water.

The ability of an electrolyte to conduct electricity is due the movement of charged particles called ions. The ions are of two types: negatively charged ions called anions and positively charged ions called cations.

Calcium nitrate is a soluble in water, and when dissolved in water produces two ions; negatively charged nitrate ions,NO₃⁻, and positively charged calcium ions, Ca²⁺. These ions enable it to conduct electricity.

Calcium carbonate on the other hand is insoluble in water, and thus, do not produces any ions capable of carrying current.

the following body systems is responsible for releasing waste?

Answers

Answer:

the urinary system??

Explanation:

Explain how Earth is heated through radiation

Answers

Answer:

Radiation happens when heat moves as energy waves, called infrared waves, directly from its source to something else. This is how the heat from the Sun gets to Earth. In fact, all hot things radiate heat to cooler things. When the heat waves hits the cooler thing, they make the molecules of the cooler object speed up.

I have the coldest temperature of the atmosphere. Who am I?

Answers

Answer:

Jack Frost of course!!!!!!!

How many total atoms are in K2(H2AsO4)2
5
18
16
12

Answers

Answer:

18

Explanation:

go go evhdj kk nm go go go

Determine the mass of 2.86 mole Co(NH3)6Cl3

Answers

Answer:

765 g Co(NH₃)₆Cl₃

General Formulas and Concepts:

Reading the Periodic Table of Elements

Explanation:

Step 1: Define

2.86 mol Co(NH₃)₆Cl₃

Step 2: Define conversions

Molar Mass of Co - 58.93 g/mol

Molar Mass of N - 14.01 g/mol

Molar Mass of H - 1.01 g/mol

Molar Mass of Cl - 35.45 g/mol

Molar Mass of Co(NH₃)₆Cl₃ - 58.93 + 6(14.01) + 18(1.01) + 3(35.45) = 267.52 g/mol

Step 3: Dimensional Analysis

[tex]2.86 \ mol \ Co(NH_3)_6Cl_3(\frac{267.52 \ g \ Co(NH_3)_6Cl_3}{1 \ mol \ Co(NH_3)_6Cl_3} )[/tex] = 765.107 g Co(NH₃)₆Cl₃

mol Co(NH₃)₆Cl₃ and mol Co(NH₃)₆Cl₃ cancel outWe are left with grams (mass)

Step 4: Simplify

We are given 3 sig figs. Follow sig fig rules.

765.107 g Co(NH₃)₆Cl₃ ≈ 765 g Co(NH₃)₆Cl₃

Tendency of an object to float

Answers

Answer:

Buoyancy is the ability or tendency of an object to float in a fluid: a liquid or a gas. This happens because fluid pressure increases with depth. According to Archimedes' Principle, the buoyant force on a submerged object is equal to the weight of the liquid displaced by the object.

Explanation:

what happens to the electronegatity when you go from top to bottom on the periodic table?

Answers

Answer:

It decreases

Explanation:

As you go down a group from top to bottom, the electronegativity decreases. Across a period, electronegativity increases from left to right.

Electronegativity is the tendency with which the atoms of the element attracts valence electrons in a chemical bond. The more electronegative an element is, the stronger its affinity for electrons. Electronegativity values less than 2 shows an element is a metal. Metals are generally electropositive.

8.
Blank is the transfer of energy by electromagnetic waves.
Your answer

Answers

electromagnetic radiation.




10. A(n) eclipse occurs at a full moon when Earth is directly between the moon and the sun.​

Answers

Answer:

Yes indeed

Explanation:

4 Identify What are the starting materials
and products of photosynthesis and cellular
respiration?

Answers

Answer:

Detail is given below.

Explanation:

Photosynthesis:

Reactants =   Carbon dioxide + water + energy

Products =    glucose + oxygen

Chemical equation:

6H₂O + 6CO₂ + energy  →   C₆H₁₂O₆ + 6O₂

It is the process in which in the presence of sun light and chlorophyll by using carbon dioxide and water plants produce the oxygen and glucose.

water is supplied through the roots, carbon dioxide collected through stomata and sun light is capture  by chloroplast.

Cellular respiration:

Reactants =  Glucose + oxygen

Products =  carbon dioxide + water + 38ATP

Chemical equation:

Glucose + oxygen → carbon dioxide + water + 38ATP

It is the breakdown of glucose molecule in the presence of oxygen to yield large amount of energy. Water and carbon dioxide are also produced as a byproduct.

What happens to the dry ice after sometime? ​

Answers

Answer:

As a rough rule, five pounds of dry ice will turn from a solid to a gas in 24 hours. It's best to pick up the block of ice just a few hours before your party so it's as frozen as possible when the bash starts.

Explanation:

Suppose that green spheres represent chlorine atoms, yellow-green spheres represent fluorine atoms, white spheres represent hydrogen atoms, and all the molecules are gases

Answers

Answer:

a. Reactants: F₂ and HCl molecules

Products: Cl₂ and HF

b. 4HCl + 2F₂ ----> 4HF + 2Cl₂

c. Single replacement reaction

Note: The question is not complete. The complete question is found below as well as in the attachment.

Suppose that green spheres represent chlorine atoms, yellow-green spheres represent fluorine atoms, white spheres represent hydrogen atoms, and all the molecules are gases:

a. write a formula for each of the reactants

b. write a balanced equation for the reaction

c. indicate the type of reaction as combination,decomposition, single replacement, double replacement, or combustion

Explanation:

a. From the models shown in the diagram, The reactants are F₂, HCl while the products are Cl₂ and HF respectively

b. Equation for the reaction is given below;

4HCl + 2F₂ ----> 4HF + 2Cl₂

c. The reaction is single replacement reaction such that fluorine gas molecules replace the chlorine atoms in hydrogen chloride to form hydrogen fluoride with the liberation of chlorine atoms as gaseous molecules.

what is the formula for dihydrogen tetraoxide

Answers

It's been a while... but I'm pretty sure it's

H₂O₄

This is a science question. What is the skateboarder’s acceleration?

Answers

Answer:

2.4

Explanation:

Divide 7.0 by 3.0 you get 2.333333 then round it of to 2.34

I need help (yes again)

Answers

Answer:

with what?

Explanation:

Which of the following is not a controllable risk factor?
a. smoking
b. inactivity
c. aging
d. over eating

Answers

Answer:

C) Aging

Explanation:

You can't stop that or change the rate that you age at. its inevetable :D

What is the difference between a hyrdrogen atom and a hydrogen molecule?

Answers

Answer:smaller

Explanation:

Answer:

Explanation:

A hydrogen atom (H) is bonded to form hydrogen gas(H2)(a molecule)

Question 6 (1 point)
Sound, earthquakes, and waves in water are rechanical waves because they require
a physical to transport energy. (Lesson 4.02)
O electromagnetic field
O disturbance
O medium
location

Answers

Answer: The answer is MEDUIM

Explanation:

If you wanted to change the polarity of hydrogen bromide (HBr) by substituting the bromine by a different atom. Which atom would increase the polarity of the molecule?

Answers

Answer:

Chlorine

Explanation:

The Polarity of an atom is characterized as the dipole to dipole intermolecular forces between the slightly positively-charged end of one molecule to the negative end of another or the same molecule. Thus, the 'chlorine' atom would help in enhancing the polarity of hydrogen bromide(HBr) with 3.16 electronegativity as we know, the electronegativity increases if we move upwards in the periodic table.

Elements that are generally shiny when smooth and clean.

Answers

metals are elements that are generally shiny when smooth and clean

Isopentyl acetate is the molecule largely responsible for the aroma and taste of bananas. It is made up of carbon, hydrogen, and oxygen. Combustion of a 3.256-g sample of isopentyl acetate produces 7.706 g CO2 and 3.156 g H2O. Using these results, what is the correct empirical formula for isopentyl acetate?

Answers

Answer:

Explanation:

7.706 g of CO₂ will contain 12 x 7.706 / 44 g of C

= 2.1 g of C .

This will be contained in 3.256 g of isopentyl acetate

3.156 g of H₂O will contain 2 x 3.156 / 18 g of H

= .351 g of H

This will be contained in 3.256 g of isopentyl acetate

Rest will be oxygen

amount of oxygen in 3.256 g of isopentyl acetate

= 3.256 - ( 2.1 + .351 )

= .805 g

ratio of C , H , O in isopentyl acetate

= 2.1 g : .351 g : .805 g

2.1 / 12 : .351 / 1 : 0.805 / 16 ratio of moles

= .175 : .351 : .05  ratio of moles

= 3.5 : 7.02: 1

= 7 : 14 : 2

empirical formula of  isopentyl acetate

= C₇ H₁₄ O₂ .

The mass of a block is 2.5 g the volume of the block is 4.1 mL.  what is the density of the block

Answers

Answer:

6.6g

Explanation:

True or False: Plants don't have brains, but they still adapt to their environments.

Answers

Answer:

True

Explanation:

I just took that last year, and got a100%

True, Plants don't have brains, but they still adapt to their environments.

What is adaptation?

Adaptation is a process where they are changing their nature to suit the environment.

We have seen that plants do adaptation according to the environment, as in the summer season their leaves are hanging down but in the rainy season they show blossoms and green leaves. So, according to the environment for the survival and reproduction they adapt their body.

Hence, plants have no brains, but they still adapt.

To learn more about adaptation, visit the below link:

https://brainly.com/question/2396978

The top layer of a flat lying sedimentary rock is the…
most eroded
most under formed
oldest
youngest

Answers

youngest

hope this helps anyone<3

Answer:

The answer is youngest.

Explanation:

Could cellular respiration
happen without photosynthesis? Explain your
reasoning

Answers

Answer:

No

Explanation:

Without photosynthesis, there would be no sugar, without which there could be no cellular respiration.Both animal cells and plant cells depend on cellular respiration for their energy needs, because both animal cells and plant cells need ATP.

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