Help Me ASAP! Looking at the picture above which images would be best classified as molecules?​

Answer:

Pretty sure this is wrong but worth a shot

Explanation:

Ethyl Alcohol is a clear, colorless liquid with a wine-like odor. It is used in alcoholic . Do not rely on odor alone to determine ... This chemical is on the Special Health Hazard Substance. Ethyl Alcohol can affect you when inhaled and by passing through the Ethyl Alcohol may form an ignitable vapor/air mixture in.

Answer:

5 hours.

Explanation:

Given that,

Initial time, [tex]T_i=6\ pm[/tex]

Final time, [tex]T_f=11\ pm[/tex]

We need to find how much time did it take the car to arrive.

Time =  final time-initial time

= 11 pm - 6 pm

= 5

So, it takes 5 hours by car to arrive.

Answer: A. The oceans‘ tidal would be smaller because the moon would exert less gravitational pull on earths oceans.

Explanation:

i got it right :)

Answer:

15 moles  of CO₂

Explanation:

Given data:

Number of formula units = 8.9 ×10²⁴ formula units

Number of moles of CO₂ = ?

Solution:

The given problem will solve by using Avogadro number.

The number 6.022 × 10²³ is called Avogadro number.

1 mole = 6.022 × 10²³ formula units

8.9 ×10²⁴ formula units  × 1mol / 6.022 × 10²³ formula units

1.5 mol ×10¹ mol

15 moles  

Answer: CuO + 2 HCl = CuCl2 + H2O

Explanation:

Answer:

2850 grams I hope this help

Answer:

24.06 g of CO₂

Explanation:

The balanced equation for the reaction is given below:

CH₄ + 2O₂ —> 2H₂O + CO₂

Next, we shall determine the mass of O₂ that reacted and the mass of CO₂ produced from the balanced equation. This can be obtained as follow:

Molar mass of O₂ = 2 × 16 = 32 g/mol

Mass of O₂ from the balanced equation = 2 × 32 = 64 g

Molar mass of CO₂ = 12 + (2×16)

= 12 + 32

= 44 g/mol

Mass of CO₂ from the balanced equation = 1 × 44 = 44 g

SUMMARY:

From the balanced equation above,

64 g of O₂ reacted to produce 44 g of CO₂.

Finally, we shall determine the mass of CO₂ produced by the reaction of 35 g of O₂. This can be obtained as follow:

From the balanced equation above,

64 g of O₂ reacted to produce 44 g of CO₂.

Therefore, 35 g of O₂ will react to produce = (35 × 44)/64 = 24.06 g of CO₂.

Thus, 24.06 g of CO₂ were produced from the reaction.

Answer:

True

Explanation:

Limiting reagent is the reactant that determines the progress of the reaction. It determines how much of the product is formed.

The equation for this reaction is;

NaCl (aq) + NH4HCO3 (aq) → NaHCO3 (aq) + NH4Cl (aq)

From the reaction, 1 mol of NaCl reacts with 1 mol of NH4HCO3 to produce 1 mol of NaHCO3

Converting to masses using; Mass = Number of moles * Molar mass

58.44g of NaCl reacts with 79.056g of NH4HCO3

If we were to  sue the whole 1.2 g of NH4HCO3 we would require xg of NaCl

58.44 = 79.056

x = 1.2

x = 0.887g

The fact that 1.2g of NH4HCO3 requires 0.887g of NaCl (which is less than the available 0.75g) means that NaCl is the limiting reagent.

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:

When she rubs her hands together, it causes heat or friction

Answer:

Write the name of transition metal as shown on the Periodic Table. Write the name and charge for the non-metal. If you have a polyatomic ion, use the Common Ion Table to find and write the formula and charge.

Explanation:

I hope this help you! :D

Answer:

Explanation:

Thus, if we have 6.022 × 10 23 O atoms, we say we have 1 mol of O atoms. If we have 2 mol of Na atoms, we have 2 × (6.022 × 10 23) Na atoms, or 1.2044 × 10 24 Na atoms. Similarly, if we have 0.5 mol of benzene (C 6H 6) molecules, we have 0.5 × (6.022 × 10 23) C 6H 6 molecules, or 3.011 × 10 23 C 6H 6 molecules.

For example the atomic mass of methane (CH4)is 12 amu for the carbon plus 4 x 1 amu for the four hydrogens, for a total of 16 amu. Therefore the molar mass of methane is 16g. We say that one mole of methane has a mass of 16 g, and that there are 6.022 x 1023 atoms in that mass of methane.

The number of atoms present in 0.75 mole of methane, CH₄ is 4.515×10²³ atoms

1 mole of CH₄ = 6.02×10²³ atoms

From Avogadro's hypothesis, we discovered that:

1 mole of CH₄ = 6.02×10²³ atoms

Therefore,

0.75 mole of CH₄ = 0.75 × 6.02×10²³

0.75 mole of CH₄ = 4.515×10²³ atoms

Thus, 4.515×10²³ atoms are present in 0.75 mole of CH₄

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Answer:

1, 2, 2, 1

Explanation:

the answers is cacih2

wjdgagqjdhdgahahdhvddvvsvshsd

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:

3

Explanation:

The atomic mass is equal to the number of protons in an atom (and electrons if the atom is neutral).

Answer:

for a molecule to be polar to conditions must be met one we must have at least one polar bond or one lone pair on the central atom to if there are more than one polar bond they must be arranged in a way that their dipoles do not cancel

Answer:

jayfeather friend me

Explanation:

In a toasty kitchen, your dough may proof in as little as an hour (or less!). When the temperatures dip, it can take much longer—upwards of two or even three hours.

Answer:

You need to put more info! If you are trying to find the GCF its 1

A. A poster that features brief sentences conveys urgency and simplifies content.

Answer:

d

Explanation:

the more movement the more energy

Answer:

Explanation:

The balanced chemical equation is Cl2 + 2KBr → 2KCl + Br2. The amount of bromine is calculated as follows:

11.0 g KBr (1mol KBr/119.002g KBr * 1mol Br2/2mol KBr * 159.808g Br2/1mol Br2= 7.39 g Br2.)

Answer:

90%

Explanation:

We have that For a metal to metal  metallic bond the atoms are arranged in a very compact manner ,This help for metals to move over each other in case of a bend.While gem atom don't same attribute.

From the question we are told

Metals usually bend without breaking

while gems usually break in a specific pattern. What might be happening

to the bonds between the atoms in these materials that can explain this

difference?

Generally

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Answer:

decreases

Explanation:

I'm hope it's correct

When there is an exothermic reaction so here the average kinetic energy of the particles of matter ib the products is option 1. decrease.

In terms of thermochemistry, an exothermic reaction means the reaction where the total standard enthalpy should change so ΔH⚬ is negative. Also it should be release heat.

So based on this, When there is an exothermic reaction so here the average kinetic energy of the particles of matter ib the products is option 1. decrease.

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