CHEMISTRY HIGH SCHOOL

What word is not associated with Exothermic? A)absorbs energy B )burning firewood C )freezing water D) releases energy

Answers

Answer 1

Answer:

Explanation:

Answer 2

Answer:

Explanation:

Not a because the term exo means outward, so exothermic means releasing energy so D.

Not B or C because they have nothing to do with exothermic (exo- outward thermic- energy)

Related Questions

1. Ozone in Earth’s atmosphere is important because itA)absorbs harmful pollution.B)absorbs harmful radiation.C)helps clouds form.D)causes rain to fall.2.A. aB. bC. cD. d
French science Does anyone understand any of this and how this all works ?
Describe the events that occur as water molecules start in hot bath water and end up on the surface of the bathroom mirror.
Which of the following are true concerning the Bohr model?
Morant Bay is 33 km south of Port Antonio a pigeon can fly at a speed of 1.2 m s what is the displacement of morant bay from Port Antonio

Explain the term "amphoteric"

Answers

A substance either an ion or a molecule that can act either an acid or a base depending on a medium is called Amphoteric. Some metals like zinc, tin, copper and aluminium which produce either metal oxides or hydroxides are examples of amphoteric. During the Amphoterism, the metal compound acts either an acid or a base depending on their oxidation state.

How does the kinetic theory of gases explain the weather changes happening in the troposphere?

Answers

Since the troposphere is heated from below, it tends to be colder as you start moving up since the air gets thinner. The sun's heat radiates which causes the air to be "stirred up" which can cause weather changes.

Hope this helps! <3

Which nuclear decay emission consists of energy, only?(1) alpha particle (3) gamma radiation
(2) beta particle (4) positron

Answers

Answer: (3) gamma radiation

Explanation:

An isotope can decay in 4 process:

1.) Alpha decay: In this process, alpha particles is emitted when a heavier nuclei decays into lighter nuclei. The alpha particle released has a charge of +2 units.

$_Z^A\textrm{X}\rightarrow _(Z-2)^(A-4)+_2^4\alpha$

2.)Beta-decay: In this process, a neutron gets converted into a proton and an electron releasing a beta-particle. The beta particle released carries a charge of -1 units.

$_Z^A\textrm{X}\rightarrow _(Z+1)^A\textrm{Y}+_(-1)^0\beta$

3.) Gamma ray emission: in this process, an unstable nuclei gives off excess energy by a spontaneous electromagnetic process and releases $\gamma -radiations$ . These radiations does not carry any charge and are electrically neutral.

$_Z^A\textrm{X}^*\rightarrow _Z^A\textrm{X}+_0^0\gamma$

4.) Positron decay: In this process, a proton gets converted to neutron and an electron neutrino and releases positron particles. This particle carries a charge of +1 units.

$_Z^A\textrm{X}\rightarrow _(Z-1)^A\textrm{Y}+_(+1)^0e$

In the question, it is given that when an isotope decays, it emits only energy. It is released when an isotope undergoes gamma decay and therefore, the correct answer is gamma radiation.

(3) gamma radiationIt is Electromagnetic energy only

What two gasses can cause changes in a muds pH?

Answers

The two gases that can cause changes in a mud's pH are carbon dioxide (CO2) and hydrogen sulfide (H2S). These gases can dissolve in water and form acids, leading to a decrease in pH.

What type of intermolecular force is CO3

Answers

Answer:

uututtuuturutururyrurrururuur

Suggest one reason why hydrogen is called a "clean fuel"

Answers

Because there is no carbon, CO2 is not a product of its combustion, only water.

Other Questions

How many significant figures are in 340500

How the moon surface is visible to an observer on earth

"For the following compound with three carbonyl groups, can you rank these carbonyl groups in order of increasing wavenumber in an infrared (IR) spectrum, and explain the reasoning behind the ranking?"

How does an ion differ from an atom?