Chemistry High School

An alloy of sodium and potassium is used as a coolant due to its
A.high thermal conductivity
B.physical state
C.high reactivity
D.all except c​

Answers

Answer 1

Answer:

A

Explanation:

Because It's dense meaning that it doesn't burn

Answer 2

Explanation:

https://youtu.be/f_kgUUaMZlw

Related Questions

Find the mass of 2 moles of:

1. Oxygen atoms

2. Oxygen molecules

Answers

Answer: 1. 2 moles of oxygen atoms = 32 grams

2. 2 moles of oxygen molecules = 64 grams

Explanation:

According to avogadro's law, 1 mole of every substance weighs equal to its molecular mass and contains avogadro's number of particles.

1 mole of oxygen atom (O) weighs = 16 g

Thus 2 moles of oxygen atom (O) weighs = [tex]\frac{16}{1}\times 2=32 g[/tex]

Also 1 mole of oxygen molecule [tex](O_2)[/tex] weigh = 32 g

Thus 2 moles of oxygen molecule [tex](O_2)[/tex] = [tex]\frac{32}{1}\times 2=64 g[/tex]

How many grams are in
.093 liters of o2, gas at STP?

Answers

The answer is 0.13 grams of O2

Answer:

0.13 grams of O2

Explanation:

Just did worksheet

What do you infere about using nonrenweable vs renewable resources and the effect this has on the cost of energy

Answers

Answer:

See explanation

Explanation:

Renewable energy resources refers to energy resources  that can not be depleted such as wind, solar, biomass etc.

Non-renewable energy resources refers to those energy resources that can be depleted such as fossil fuels.

Globally, it has been established that energy from renewable sources costs less than energy from nonrenewable(especially fossil fuel) sources.

According to Forbes, 2019, "The worldwide weighted average cost of electricity from solar power concentration fell by 26%, that of bioenergy reduced by 14%, solar photovoltaics, geothermal, onshore, as well as offshore wind, fell by 14%, and hydropower by 12%.".

This shows us that renewable energy remains the cheapest alternative in terms of energy cost.

Which objects should not be thrown in landfills because they could leach into groundwater and pollute the water?
A. paints
B. aluminum foil
C. plastics
D. paper

Answers

The answer is paints

True or False vacuoles direct cell activities by sending instructions to different parts of an animal cell

Answers

Answer:

False

Explanation:

The nucleus controls the cells activities

What is a unwanted change in the environment caused by substances or from of energy??

Answers

Answer:

pollution I think

Explanation:

3. What do you think is the primary reason why the Unionid mussel population declined whenever there is a dramatic increase in the Zebra mussel population?

Answers

When the Zebra arrived they ate all the food in the area leaving Unionid numbers to decline and die as they have no food to eat.

Please choose the correct sequence that describes the excitement of an atom.

Such an electron transition raises the atom from the ground state to the excited state.
When energy is added to an atom from an outside source, its electrons move to a higher energy level (orbit)
As a result, the atom emits a photon.
When the atom is in an excited state, the electron can drop from the higher energy level to a lower energy level.

A) 2, 1, 4, 3

B) 4, 3, 2, 1

C) 3, 4, 1, 2

D) 1, 2, 3, 4

Answers

answer: A because it’s correct

What is the mass in grams of 5.67 x 1021 molecules of carbon dioxide?

Answers

Answer:

5789.07

Explanation:

(URGENT) will mark brainliest if you help me answer this


Question 1 options:

OH-


H+



Question 2 options:

OH-


H+



Question 3 options:

soap


bleach


apple juice


ammonia



Question 4 options:

lemon juice


bleach


milk


stomach acid



Question 5 options:

0-3


8-10


0-6


8-14


Question 6 options:

0-3


8-10


0-6


8-14



Question 7 options:

sour


bitter


sweet


salty



Question 8 options:

slippery


brittle


malleable


corrosive



Question 9 options:

slippery


brittle


malleable


corrosive


Question 10 options:

sour


bitter


sweet


salty

Answers

Answer:

For Q1: H+

For Q2: OH-

for Q3: Apple juice

For Q4: bleach

For Q5: 0-6

For Q6: 8-14

For Q7: Sour

For Q8: Corrosive

For Q9: Slippery

for Q10: Bitter

Explanation:

I put 5 pigs, 2 goats, and 7 horses in a boat with six cats. How many dogs are in that one Disney movie with all the dogs?

Answers

Answer:

the average weight of a frog is 0.8 ounces, so your answer would be 4

Answer:

one hundred and one

Explanation:

Isotopes are atoms of the same element that have different O principal chemical properties, masses. O numbers of protons, O numbers of electrons.​

Answers

Answer:

Different atomic mass, number of neutrons

Explanation:

Isotopes refer to atoms of the same element, with same atomic number, number of protons & electrons. However, they have different atomic mass, because of different number of neutrons.

The electromagnetic spectrum includes the complete range of electromagnetic waves placed in order of...

Answers

Answer: increasing frequency or energy and decreasing wavelength.

Explanation:

Electromagnetic wave is defined as the wave which is associated with both electrical and magnetic component associated with them. They can travel in vacuum as well and travel with the speed of light i.e  

The electromagnetic spectra consist of radio waves, microwaves, infrared ,Visible , ultraviolet, X rays and gamma rays arranged in order of increasing frequency or increasing energy and decreasing wavelengths.

Other Questions
There are 7 red marbles, 7 blue marbles, 7 yellow marbles, and 7 green marbles in a bag. If a person randomly selects 1 marble from the bag, what is the probability that the person selects a blue marble? (HOW DID YOU GET YOUR ANSWER, PLEASE SHOW ME YOUR WORK!!)A. 0.75B. 0.5C. 0.25D. 0.0625 Find the value of xPlease Kiana is saving for a new computer that cost $499. So far, she has earned 68 percent of the cost of the computer. How much more must Kiana earn. Which of the following people were descendants of the Aryans? (mark all that are true) Hittites Arabians Babylonians Phoenicians Factor out the coefficient of the variable.The expression 4h3 factored is What combination of transformations is shown below y- 4/5=1what does y equal to? The table shows mass and volume measurements in an investigation that involves vinegar and baking soda, both before and after the chemical reaction. What evidence supports the law of conservation of mass?The mass remains constant before and after the chemical reactionThe volume of the products is more than the volume of the reactants, so it does not support the law of conservation of mass.The mass of the gas is more than the mass of the baking soda, so the mass is constantThe density of the products is less than the reactants, so the mass is constant. Tom hits golf balls at the driving range every 3 days, practices putting every 4days, and goes golfing every 6 days. If he did all three activities today, in how may days will he do all three activities again? Please help an explain workI think its c? ILL GIVE BRAINLIEST IF ITS RIGHT plsssss help !! what are the steps to convert from atoms, compounds, formula units, ect to moles Mrs. Carver wants to add walltowall tile to the science lab. If she plots the layout of the science lab on a graph with the vertices A(7, 8), B(3, 8), C(3, 2), and D(7, 2), what is the area of the science lab? Find the indicated root.Plz help Where are laws spelled out? PLEASE HELP ASAPAnswers:1218238PLEASE HELP ASAP When are rules essential? When are they bad? An object accelerates 16.3 m/s2 when a force of 4.6 newtons is applied to it, what is the object in grams 10y + 2y^2 - 6y^3 + 8y^3=?I WILL GIVE BRAINLIEST TO THE FIRST TO GET IT RIGHT!!!! question : Jody got an 80% on a test that had 60 total points on it. How many points did Jody get correct?help :) ( im not so good with math ) .