Give two examples of elevation.

Answer:

hhmxui

Explanation:

Answer:

The oxidation number of cobalt is +2.

Answer:

A) The atoms of the reactants unbond, rearrange and then rebond to form the products

Explanation:

Using method of elimination:

A) The atoms of the reactants unbond, rearrange and then rebond to form the products

This is the correct option. Chemical reactions involves breaking and forming of new bonds.

B) Some atoms disappear while others multiply to form the products

This option is incorrect. Atoms do not disappear

C) The atoms of the reactants always stay together to form the products

This option is incorrect. The bonds between the atoms in the reactants must first be broken before products can be formed.

D) New atoms are formed which combine to make the products

This option is incorrect. Atoms do not just form out of nowhere.

Answer:

hhhhdhabbjdksdalitkslhbdlqhbdndnvlirladiksha pokgjwnfkfdiksha pokhrel shhddhhgkd

Answer:

Overpopulated prey.

Explanation:

Because if you remove the predators from the picture who's gonna eat the prey? So it would only make sense that the prey would overpopulate! Hope this helped! (^-^)

A removal of the predator populations from an ecosystem would most likely result in overpopulated prey.

An ecosystem, sometimes known as just an ecological system, primarily made up of all the species that dwell in the physical environment. These abiotic components are linked via nutrition cycles as well as energy fluxes.

Animals contribute significantly to the transport of nutrients as well as energy through the system by consuming plants and each other. They also influence the biomass concentrations of microbial and plant populations. A removal of the predator populations from an ecosystem would most likely result in overpopulated prey.

Therefore, a removal of the predator populations from an ecosystem would most likely result in overpopulated prey.

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Answer:

hahahahhahhhahahaha

Explanation:

haahahahahhahahhaha

Answer:

X = 2

Explanation:

As you know, the rate of a first-order reaction depends linearly on the concentration of a single reactant. The rate of a first-order reaction that takes the form

Answer:

I think the correct answer would be the second one

Answer:

²⁴³₉₅Am --> ²³⁹₉₃Np  +  ⁴₂He

Explanation:

In alpha decay;

The mass number decreases by 4

Atomic Number decreases by 2

Mass Number = 243 - 4 = 239

Atomic Number = 95 - 2 =93

Element = Neptunium (Np)

Equation for the decay is given as;

²⁴³₉₅Am --> ²³⁹₉₃Np  +  ⁴₂He

Answer:

A high difference in electronegativity will be present in ionic compounds since the electrons are transffered from the element less electronegative to the element more electronegative.

A small difference in electronegativity is present in molecular compounds (covalent bonds). None of the elements is strong enough to attract the electrons so the electrons are shared.

Explanation:

A high difference in electronegativity will be present in ionic compounds since the electrons are transffered from the element less electronegative to the element more electronegative.

A small difference in electronegativity is present in molecular compounds (covalent bonds). None of the elements is strong enough to attract the electrons so the electrons are shared.

Explanation:

mole = mass/molar mass

molar mass of KHCO3 = K + H + C + O3

39 + 1 + 12 + 3(16)

= 100g/mol

mass = 75.56

mole = 75.56/100

= 0.7556mol

Answer:

Hartwell's yeast

Explanation: A model organism for studying somatic mutations and cancer."

Answer:

[tex]\boxed {\boxed {\sf About \ 72 \ grams }}[/tex]

Explanation:

To convert from moles to grams, we must use the molar mass (also known as the gram formula mass).

First, look up the molar masses of the elements in the formula.

Next, multiply by the subscript, because it tells us the number of atoms of each element in the formula.

Add the values.

Use this molar mass as a ratio.

[tex]\frac {180.159 \ g \ C_9H_8O_4}{1 \ mol \ C_9H_8O_4}[/tex]

Multiply by the given number of moles, 0.40

[tex]0.40 \ mol \ C_9H_8O_4 *\frac {180.159 \ g \ C_9H_8O_4}{1 \ mol \ C_9H_8O_4}[/tex]

The units moles of aspirin cancel.

[tex]0.40 *\frac {180.159 \ g \ C_9H_8O_4}{1 }[/tex]

[tex]72.0636 \ g \ C_9H_8O_4[/tex]

The original number of moles has 2 sig figs (4 and 0), so answer must have the same. For the number we calculated, it is the ones place. The 0 in the tenth place tells us to leave the 2.

[tex]72 \ g[/tex]

Answer:

65563.914234

Explanation:

8.61029 x 7.4 x 1029

63.716146 x 1029

multiply

= 65563.914234

Answer:

a

Explanation:

if the difference is over 1.7, an ionic bond will form

Answer:

[Zn(C₂H₃O₂)₂] = 1.85M (3 sig-figs accurate to 0.01 Molar)

Explanation:

Concentration is defined as amount of solute in a specified volume of solution. That is, Concentration = mass of solute/volume of solution (solution = solute + solvent). When concentration is in terms of Molar values the essential relationship is Molarity(M) = moles solute / volume of solution in liters.

For this problem => first, convert mass of Zn(C₂H₃O₂)₂ into moles and then the volume of solution into liters. Take ratio of moles/volume of solution (L).

=> Molar Concentration = moles of Zn(C₂H₃O₂)₂ / Liters of solution

moles of Zn(C₂H₃O₂)₂ = 85.0 grams Zn(C₂H₃O₂)₂ / formula weight of Zn(C₂H₃O₂)₂  =  85.0g/183.5g·mole⁻¹ = 0.463 mole Zn(C₂H₃O₂)₂.

Volume of solution in Liters = 250ml / 1000ml/L = 0.250 liters

Molarity of  Zn(C₂H₃O₂)₂ solution = 0.463 mole Zn(C₂H₃O₂)₂  /0.250 liters of solution = 1.85 Molar in Zn(C₂H₃O₂)₂

_____________

Note: The symbiology convention for 'molar solution concentration' is to place brackets around the molecular formula. That is, [Zn(C₂H₃O₂)₂] = 1.85M

Answer:

Biosphere

Explanation:

This is because the biosphere is the category of life. This means that plants, animals, humans, and bacteria are all apart of the biosphere.

Answer:

Hydorgen will.

Because hydrogen has 1 as valency.

Answer:

It means beside or alongside.

Answer:

The word Paralympics means “parallel with the Olympics”, with the para prefix coming from the Greek word for alongside. The name was chosen to embody the spirit of the two movements existing side-by-side.

Explanation:

Answer:

C

Explanation:

Answer:

I think ur answer would be C.)

Explanation:

hope this helps

Wind and Erosion lead to Washing away of top soil.

Erosion is the process that lead to the washing away of top soil leading to loss of nutrient, holes and many more.

The agents of erosion include wind, water and so on.

Strong wind will lead to the top soil to be remove when it is blowing. Water also when is is flowing turbulently maybe when rain fall can lead to loss of top soil.

Therefore, Wind and Erosion lead to Washing away of top soil.

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Answer:

2 M

Explanation:

NaOH + HCl --> NaCl + H2O,

5.54 mL = .00545 L,

If we consider 2.18 M, M [molarity] = mol/L, so we have 2.18 mol/L. From this we can get the moles of NaOH.

.00545 L *  2.18 mol/L ≈ .0121 mol

The concentration of HCl can be found from the following:

.0121 mol = .00619(x) [where x = concentration of HCl]

x = 1.955 M ≈ 2 M

We equate the two as we require the same amount in order to neutralize the base.

Given values are:

As we know the relation,

→ [tex]Fs = K\times x[/tex]

or,

→   [tex]x = \frac{Fs}{k}[/tex]

By putting the values, we get

        [tex]= \frac{8.7}{190}[/tex]

        [tex]= 4.6\times 10^{-2} \ m[/tex]

Thus the response above is right.

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Answer:

then it is 5

Explanation:

because i said it is

Answer: B

Explanation: I just did it

The equation for calculation of rate constant from initial concentration will be k= rate / [tex][A^{m}] [B^{n}][/tex]

The proportionality variable in the expression represents the link between both the rate of a reaction as well as the concentrations of the reacting components often called the rate constant, sometimes specific rate constant.

A chemical reaction is represented by a word equation that uses the identities of the substance present.

The equation for calculation of rate constant from initial concentration will be k= rate / [tex][A^{m}] [B^{n}][/tex].

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Answer:

sorry if this is wrong but B

Explanation:

ITS C

Oxygen, APT, and Glucose