pls help 6th grade science

Answer:

increase

Explanation:

if the pressure goes down then the gas will spread out more, meaning the volume will increase

Answer:

c. element

Explanation:

Because gold is its own element, a gold bar is only made of one element.

The smallest unit found in a bar of gold is the nucleus of its atom.  The core of an atom is called its nucleus which contains the nucleons protons and neutrons.

An atom is composed of  nucleons and electrons. The core of an atom is called its nucleus. Protons and neutrons are located inside the nucleus. They are called the nucleons.

The electrons are revolving around the nucleus through circular trajectories of fixed energies. Every elements are composed of their atoms. Atoms of different elements combine together to form compounds.

Gold is 79th element in periodic table. It is a transition metal in d-block. As every other elements the smallest unit are atoms where the atomic nuclei are even smaller units.

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Answer:

with the molecular formula C3H5(ONO2)3, has a high nitrogen content (18.5 percent) and contains sufficient oxygen atoms to oxidize the carbon and hydrogen atoms while nitrogen is being liberated, so that it is one of the most powerful explosives known.

Explanation:

NTG reduces preload via venous dilation, and achieves modest afterload reduction via arterial dilation. These effects result in decreased myocardial oxygen demand. In addition, NTG induces coronary vasodilation, thereby increasing oxygen delivery.

The decomposition of nitroglycerin can result in so much more volume than the decomposition of sodium azide nitroglycerin contains a lot of nitrogen (18.5%) and has enough oxygen atoms.

A measurement of three-dimensional space is volume. It is frequently expressed quantitatively using SI-derived units, like the cubic metre or litre, or different imperial or US-standard units, including the gallon, quart and cubic inch. Volume and length (cubed) have a symbiotic relationship.

The total volume much a container is usually thought of as its capacity, not as the amount of space it takes up. In other words, the volume is the quantity of fluid (liquid or gas) that the container may hold. The decomposition of nitroglycerin can result in so much more volume than the decomposition of sodium azide nitroglycerin contains a lot of nitrogen (18.5%) and has enough oxygen atoms for the nitrogen to be liberated while also oxidising the hydrogen and carbon atoms.

Therefore, the decomposition of nitroglycerin can result in so much more volume than the decomposition of sodium azide nitroglycerin contains a lot of nitrogen (18.5%) and has enough oxygen atoms.

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Answer:

The atoms of chlorine are held together by non-polar covalent bonds. Covalent bonds are formed between two or more atoms having zero or very small electronegativity difference. For homonuclear molecules where the two bonding atom are of the same kind, the electronegativity difference is zero.

C. Atoms of chlorine (CI)

A covalent bond is created when the electrons from the two involved atoms are shared equally.The pair of electrons involved in this kind of bonding is referred to as the shared pair or bonding pair. Here the atoms of chlorine have non-polar covalent bonds. The correct option is C.

A non-polar covalent connection is created when atoms with an equal amount of electrons share one another. The electronegativity of the two atoms is equivalent. When two atoms with similar electron affinities join together, like in the case of diatomic elements, it happens.

Non-polar covalent compounds are those in which there is no variation in electronegativity. In these compounds, the electronegativity does not change, preventing the motion of the bond pair's electrons in the direction of the linked atoms.

As a result, a molecule is non-polar and non-conducting since there is no bond or dipole moment between its atoms and no buildup of charges on the atoms.

Thus the correct option is C.

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Answer:

0.84

Explanation:

total heat energy =mass ×specific heat capacity (4.2kJ)×temp change

mass=25g convert to kg to get 0.025

specific heat capacity is 4.2

temp change=36.0-24.0=8.0

q = mC∆T

m=25.0

c=24.0

ΔT=36.0

25.0 * 24.0 * 36.0 = 21,600 jules

The equation q =   MC ∆ T, where m is the sample mass, c is the specific heat, and  ΔT is the temperature change, can be used to determine the amount of heat acquired or lost by a sample (q).

How can you figure out how much energy was consumed?

This is simple to perform; to calculate the amount of heat absorbed, multiply the substance's heat capacity by its mass and the temperature change.

The specific heat capacity of a substance is the amount of energy needed to raise the temperature of 1 gram of that substance by 1 degree Celsius. With a value of 4.18 J/g/°C, water has one of the highest heat capacities.

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Once a digital recording is made, the bandwidth is set in place. An analog recording is considered unlimited. Therefore, it can move to a higher and higher resolution without losing its original quality.

Answer:

Earth's climate has changed throughout history. Just in the last 650,000 years there have been seven cycles of glacial advance and retreat, with the abrupt end of the last ice age about 11,700 years ago marking the beginning of the modern climate era — and of human civilization. Most of these climate changes are attributed to very small variations in Earth’s orbit that change the amount of solar energy our planet receives.

Explanation:

i might be right

The compound formed that has been neutral has been Magnesium and bromine. Thus, option D is correct.

The periodic table has been the arrangement of the elements with increasing atomic number and similarity in the reactivity.

The metals in the periodic table are elements that has been able to accept electrons, and nonmetals are the elements in the table that loses electrons to attain the stable noble gas configuration.

The metal and nonmetal form the neutral compound when there has been the formation of stable compound with the complete configuration.

The magnesium and lithium has been metals, while sulfur and bromine are nonmetals. Bromine has been the element of group 17. It has been able to gain an electron. Sulfur has been the nonmetal and required 2 electrons to complete its octet.

Lithium has been the metal with one valence electron, and magnesium with 2 valence electrons.

The neutral compound to be formed has been consisted of one metal with 2 valence electrons, and 2 nonmetals with 1 valence electrons.

Thus, the compound formed that has been neutral has been Magnesium and bromine. Thus, option D is correct.

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Answer:

The unit is: Newton.

Hope it helps:D

Answer:

1 cg = 10 mg

Explanation:

So, 89cg = 89 * 10 = 890mg!

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Answer: It’s 2.9 moles

Explanation:

Answer:

b) 3

Explanation:

i got it right

Answer:

P3O6

Explanation:

Tri=3 Hex=6

Answer:

the chlorine gas is green

Explanation:

the density of

Therefore, the first option A is correct.

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Volume of H2 produced = 57.6576 L

Given

23.17 g Be

Required

Volume of H2

Solution

Reaction

Be(s)+H2O(g)→BeO(s)+H2(g)

mol Be :

= 23.17 g : 9 g/mol

= 2.574

From the equation, mol H2 : mol Be = 1 : 1, so mol H2 = 2.574

Volume H2(assumed at STP, 1 mol=22.4 L) :

= 2.574 x 22.4 L

= 57.6576 L

Answer:

Ionic

Explanation:

Answer:

carbon and hydrogen are molecular

Explanation:

Answer:

They are all made of cells

Answer: They are all made of cells.

Explanation:

Answer:

On bullets, the class characteristics are the rifling specifications of the barrel from which the bullet was fired. ... In a barrel, the individual characteristics are produced by the random imperfections and irregularities of the tool or tools used to produce the lands and grooves, and by use, corrosion, or damage.

Explanation:

Answer:

yes mass conservation is in 2Na+2H2O=2NaOH+H2​

Explanation:

it tells how many atoms or molecules of a reactant or a product take part in the reaction

Answer:

As stated in the kinetic-molecular theory, the temperature of a substance is related to the average kinetic energy of the particles of that substance. When a substance is heated, some of the absorbed energy is stored within the particles, while some of the energy increases the motion of the particles.

Explanation:

Answer:

jayfeather the answerer friend me

Explanation:

As stated in the kinetic-molecular theory, the temperature of a substance is related to the average kinetic energy of the particles of that substance. When a substance is heated, some of the absorbed energy is stored within the particles, while some of the energy increases the motion of the particles.

Answer: I believe 1838

Explanation:

Answer:

1838 is the correct answer, hope this helped

Answer:

Always be scared of electroplating. ...

Follow all electrical safety precautions. ...

Use all safety Precautions. ...

Use that Fume Hood. ...

It's a chemistry lab, set it up like one. ...

Always add acid to water. ...

Don't overheat your solutions! ...

Don't mix acid and cyanide solutions.

Answer:

People wanted to settle there because it had good living conditions. There was rich soil, and lots of water sources.

I hope this helps!

Answer:

A. lytic cycle is the correct answer

Answer:

The answer is: 78.04454 grams

Explanation:

Answer:

IHi the answer is 32.065 grams

Answer:

The answer is A

Explanation:

I dont see any claim