pls help 6th grade science

Answer:

Cellular differentiation

Explanation:

Answer:

cellular differentiation

Explanation:

Answer:

it is option A hope it helps

The properties of nonmetallic oxides include acidity and covalent character. Hence, option A is correct.

Non - metals are elements in the rightmost side of the periodic table. Non -metals are mostly gases and some of them include, metalloids also. Non-metals are commonly electron -deficient and some of them are highly electronegative.

A compound shows covalent character, if the electrons are shared between the constituent atoms. Covalency increases from left to right in periodic table.

As the covalent character increases, acidity increases. Oxides of non-metals are electrophiles and acts as Lewis acids. They are all covalent compounds. Therefore, option A is correct.

Find more on covalent bonding:

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Answer:

No, thermal energy is not being transferred by radiation.  The eggs are in direct contact with the metal pan, which is in direct contact with the gas flame, so this is conduction, not radiation. Radiation transfers thermal energy by electromagnetic waves, not by direct contact.

Answer:

no

Explanation:

a metal pan is cooking the eggs because the flame is touching the pan and the molecules are colliding with each other

Answer:

ammonia being lighter than air, is collected by downward displacement of air in an inverted gasjar

The gas jar is used to collect ammonia gas. This gas can be barely dissolved in water. As a result, the downward displacement of water does not gather it in the jar.

With the formula NH3, ammonia is a nitrogen and hydrogen inorganic chemical. Ammonia, the simplest pnictogen hydride and a stable binary hydride, is a colorless gas with a strong, pungent odor.

Because it is simpler to install inlets and outlets in one end of an erect gas jar than it is to install them on the side or the bottom, which are required for placement on a stable surface.

Ammonia is prepared in a laboratory by forcing air downward to collect the gas. Due to the high solubility of ammonia in water, it is impossible to collect ammonia gas over water.

Thus, The gas jar is used to collect ammonia gas.

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Answer: 5 molecules

Explanation:

2 molecules of K and 3 molecules of O

Answer:

The least similar to a real gas found in the environment would be B.

Explanation:

Standard Ambient Temperature/Pressure (SATP) is at 298.15K and 101.3kPa. It describes standard conditions and is often used for measuring gas density and volume using the Ideal Gas Law. The values least similar to theses ones would be the least similar in the gases in the environment.

Answer:

Giant structures are usually arranged in to giant regular lattices and they are extremely strong because they have many bonds involved. Simple molecules are just normal molecules as the name suggests like CO². though it contains strong covalent bond it still has weak intermolecular forces

Explanation: when your account gets to deleted and your trying to get your points up lol

Answer:

B

that's all HAHA why do it have to be 20 characters to answerrr

Answer:

Exothermic

Explanation:

The equation of the reaction is given as;

H₂O(vapour) --> H₂O(liquid)

The equation above represents a condensation process. Water vapour condenses to liquid.

Condensation involves loss of energy as heat. The equation can be modifies as;

H₂O(vapour) --> H₂O(liquid) + Heat

Due to the loss of heat, condensation is regarded mas an exotheric process.

hope it helps you .............

Answer:

108 g

Explanation:

2H₂ + O₂ ⇒ 2H₂O

1) n(H₂) : n(H₂O) = 2 : 2

Hence, n(H₂O) = n(H₂) = 6,00 mol

2) m(H₂O) = n × M = 6,00 mol × (2 + 16) g/mol = 6,00 × 18 mol = 108 g

Answer:

x basic and y acidic

Explanation:

hope it helps

Answer:

Positive: Save fuel and reduces greenhouse gas

Negative: Harmful to human and animal health ( underwater animals), Hurts the food chain

Explanation:

I got it from a video. Hopefully it helps you.

Answer:

Frequency

Explanation:

When we talk about crests, we are referring to the high points of a wave.

We measure wave frequency by counting out the the number of crests (or high points) of a given wave that pass by a given point in a set amount of time. Thus, the higher the number of crests, the greater the frequency of the wave and vice versa.

We define the frequency of a wave as the number of waves that passes by a fixed point within a given period of time.

Actually, no. While their mass may be the same (1kg), the volume of lead is a lot smaller than that of feathers. As there is the same mass stuffed in a smaller space, it must be denser. The density of water is 1 g/cm3, so if the density of the lead is more than 1g/cm3, it has to sink

Answer:

Electric charges produce electric fields

Explanation:

Answer:

maybe they will be the same temperature

Explanation:

Answer: The effect of this transfer of energy usually, but not always, is an increase in the temperature of the colder body and a decrease in the temperature of the hotter body.

Explanation:

Answer:

Energy and how it can change forms. Kinetic, potential, and chemical energy.

Answer:

B

Explanation:

the nervous system (nerves) is the brains communication to the body

Answer:0.178 moles

Explanation: carbon trihydride seems to be an unusual name for the methyl group CH3–

ionic wt 15

moles = 2.67/15 = 0.178

Answer:

Kc → 5.58×10⁻⁴

Explanation:

Equilibrium reaction is:

2NOCl (g) ⇄  2NO (g) + Cl₂(g)

Initially we have 1.25 moles of NOCl

After the equilibrium, we have 1.10 moles. So, during the process:

(1.25 mol - 1.1 mol) = 0.15 moles have reacted.

As ratio are 2:2, and 2:1, 0.15 moles of NO and (0.15 /2) = 0.075 moles of chlorine, were produced in the equilibrium.

Finally in equilibrium we have: 1.10 moles of NOCl, 0.15 moles of NO and 0.075 moles of Cl₂. But these amount are not molar, so we need molar concentration in order to determine Kc:

1.10 mol /2.50L = 0.44 M

0.15 mol / /2.50L = 0.06 M

0.075 mol /2.50L = 0.03 M

Let's make expression for Kc → [Cl₂] . [NO]² / [NOCl]²

Kc = (0.03 . 0.06²) / 0.44² → 5.58×10⁻⁴

Answer:

a is balanced

Explanation:

a) reactant/ product

(2x2)=4c / 4c

(2x6)=12h / 12 h

14o / (8o+6o)=14 o

Answer:

he was born on planet krypton

Answer:

arteries carry blood from the heart to the lungs and veins carry blood from the lungs to the heart

Explanation:

Arteries carry oxygenated blood from the heart, while veins carry oxygen-depleted blood back to the heart. ... The pulmonary veins transport oxygenated blood back to the heart from the lungs, while the pulmonary arteries move deoxygenated blood from the heart to the lungs.)

Answer:

I am not sure

Explanation:

ΔABC ~ ΔEFD

Answer: B. C and A.

Explanation: