Naturally-occurring compounds called cyanogenic glycosides, such as lotaustralin, release hydrogen cyanide, HCN, when treated with aqueous acid. The reaction occurs by hydrolysis of the acetal linkage to form a cyanohydrin, which then expels CN- and gives a carbonyl compound. Draw curved arrows to show the movement of electrons in this step of the reaction mechanism.

Answer:

a

Explanation:

because that is .y answee

Answer:

42.3moles

Explanation:

The chemical equation given in this question is as follows:

H2 + O2 → H2O

However, this equation is unbalanced, the balanced chemical equation is as follows:

2H2 + O2 → 2H2O

This equation shows that;

2 moles of hydrogen gas (H2) will produce 2 moles of water (H2O)

Hence, If 42.3 moles of water (H2O) are produced, 42.3 × 2/2

= 42.3moles of hydrogen was reacted.

Answer:

You need to measure 120.9132 grams of MgO and add to 1 liter of distilled water in a beaker.

Explanation:

Capital M stands for molarity, or moles/liter. So 3 M MgO means 3 moles per liter of MgO.

1 L × [tex]\frac{3 moles MgO}{1 L MgO}[/tex] = 3 moles MgO

This means you need to measure 3 moles MgO to put into 1 Liter of water.

But you don't know how much that is, so you need to convert moles to grams.

First you need to find how many grams are in 1 mole of MgO.

You can search the molar mass of MgO online to get: 40.3044 g

But if you don't have the internet, use the periodic table to add the masses of Mg and O: 24.305 g + 15.999 g = 40.3044 g

Then write the fraction so that the units cancel out, so you get grams by itself on the top of the fraction.

1 L × [tex]\frac{3 moles MgO}{1 L MgO}[/tex] × [tex]\frac{40.3044 g MgO}{1 mole MgO}[/tex] = 120.9132 g MgO

You need to measure 120.9132 grams of MgO and add to 1 liter of distilled water.

We will prepare 1 L solution of 3 M MgO, by dissolving 120.91 grams of MgO in 1 litre of water.

Molarity is define as the no. of moles of solute dissolve in per liter if solvent or solution & it is represented as:

M = n / v

In the question, it is given that:

Molarity of MgO = 3M i.e. 3 moles of MgO is present in 1 liter of solution.

So, we have moles of MgO = 3 moles

Now, we convert moles of MgO to grams to know how much of solute is required, in the following manner:

n = W / M, where

M = molar mass of MgO = 40.30 g/mole

W = to find?

W = 3 mole × 40.30 g/mole = 120.91 grams

Hence, 120.91 grams of MgO is required.

To know more about molarity, visit the below link:

https://brainly.com/question/14469428

Answer:

285.75 amu

Explanation:

CuSO4 mass = 159.609 amu

H2O mass = 18.02 amu

159.609 + 7(18.02) = 285.75 amu

Answer:

The one inside with "+"--- Protons

The grey ones inside--neutrons

The ones on the electron orbits---electron

Everything is called an atom

Explanation:

Answer:

false

Explanation:

not all science is good, or has good effects

False.

Science can possibly be dangerous when used by the wrong people. It can be used to create bombs, bioweapons, and much more.

Please mark Brainliest if this was helpful, and let me know if you have questions! :)

Answer:

[tex]75.04gC_6H_{12}O_6[/tex]

Explanation:

Hello!

In this case, since one mol of any atom is related via the Avogadro's number and each mol of glucose has 6 moles of atoms of oxygen, it is possible to obtain the moles of glucose as shown below:

[tex]1.505x10^{24}atomsO*\frac{1molO}{6.022x10^{23}atoms O}*\frac{1molC_6H_{12}O_6}{6molO}\\\\=0.4165 mol C_6H_{12}O_6[/tex]

Thus, since the molar mass of glucose is 180.15 g/mol, the mass turns out to be:

[tex]0.4165mol*\frac{180.15g}{1mol} \\\\=75.04gC_6H_{12}O_6[/tex]

Best regards!

Answer:

D)It is transferred by convection and radiation.

Explanation:

Convection can be regarded as a model of heat transfer involving the transfer of thermal energy via movement of a fluids such liquid or gas. It's a process whereby heat is transferred by movement of a heated fluid. Radiation can be regarded as a model of heat transfer involving the transfer of thermal energy via thermal emission.

Therefore, when someone holds a hand above a fire it heat transfer occur through radiation because it happens through emmision of the heat and also convection as gas.

Answer: Chromium is less reactive as compared to Aluminium as it can not easily electrons as aluminium.

Explanation:

The arrangement of metals in a series according to the decreasing order of their reactivity is called reactivity series.

The metals that are placed above hydrogen are more reactive and those below hydrogen are less reactive.

A metal placed above another metal can displace lower metal from its salt solution. Thus a metal placed above in series is more reactive than metals placed below it.

As aluminium can easily lose electrons as compared to chromium , it is more reactive than Chromium.

3.25 × 10²⁴ atoms are present in 5.40 moles of Copper, Cu.

Thus, option D is accurate.

A mole is a measurement of quantity. A fixed amount of something is represented by 1 mole.

Objects with dimensions on the atomic scale are counted using this unit.

According to formal definition, one mole of a substance has the same number of particles as atoms in a 12-gram sample of carbon-12.

Mole of Copper (n) = 5.40 mol   (Given)

We know that, one mole of particle contains Nₐ= 6.022 × 10²³ mol⁻¹ number of particles.  (Nₐ stands for Avogadro's Number)

Thus, the number of atoms in n = 5.40 mol of copper is:

N = Number of Moles × Number of molecules per mole

N = 5.40 mol × 6.022 × 10²³

N  =  3.25 × 10²⁴

Thus, 5.40 moles of Copper, Cu contains 3.25 × 10²⁴ atoms.

To know more about mole, refer to the below link :

https://brainly.com/question/22540912

#SPJ2

Answer:

20

Explanation:

Answer:

Dyne is a force wee need it

Explanation:

Answer: c

Explanation:

Answer:

the answer is True

Explanation:

the answer is True

Answer:

B: reflector

THe answer on EDG

Answer:

B

Explanation:

EDGE 2021

86400 seconds

God bless

Answer:

86400 seconds

Explanation:

One day = 24 hours

24 hours = 1440 minutes (can be calculated by multiplying 24 and 60)

1440 minutes = 86400 seconds (can be calculated by multiplying 1440 and 60)

Answer:

A. Inflation pressure of the tyres

Explanation:

In an experiment, the independent variable is the variable that the experimenter changes or manipulates in order to induce a response in another variable called Dependent variable.

In this case in which an experiment was conducted on how inflation pressure of tyre affects a vehicle's maximum speed. The tyres of three different vans were used. The tyre of the first van were set at normal pressure of 35psi, the other van tyres were set at 40psi (overinflated) and 30psi (underinflated) respectively. This means that the INFLATION PRESSURES OF THE TYRES were the variable being changed, hence, is the INDEPENDENT VARIABLE.

First question

[tex]Pb(NO_3)_2 + KI \rightarrow PbI_2 + KNO_3[/tex]

Balaneced:

[tex]Pb(NO_3)_2 + 2KI \rightarrow PbI_2 + 2KNO_3[/tex]

Find how many moles potassium iodide it is in 345.0 grams

[tex]n_{KI} = \frac{345.0 \ g}{166.0 \ g/mol} = 2.078 \ mole[/tex]

Find how many moles potassium nitrate there is for 2.078 moles [tex]KI[/tex]

[tex]n_{KNO_3} = \frac{2}{2} \cdot n_{KI} = 2.078 \ mole[/tex]

Find how many grams potassium nitrate there is in 2.078 moles [tex]KNO_3[/tex]

[tex]m_{KNO_3} = 2.078 \ mol \cdot 101.1 \ g/mol = 210.1 \ g[/tex]

Second question

[tex]yield \ \% = \frac{experimental}{theoretical} \cdot 100 = \frac{195.3 \ grams}{210.1 \ grams} \cdot 100 = 93.0 \ \%[/tex]

Answer:

2 atm

Explanation: add both partial pressures and subtract from total pressure

Answer:

MgBr2

Explanation:

On the periodic table, Magnesium has 2+ charge and Bromine has -1 charge.

You cross charges and get MgBr2

Magnesium and bromine react to produce magnesium bromide. The balanced chemical equation for this reaction is Mg + Br[tex]_2[/tex] [tex]\rightarrow[/tex]  MgBr[tex]_2[/tex].

An equation for just a chemical reaction is said to be balanced if both the reactants as well as the products have the same number of atoms and total charge for each component of the reaction. In other words, both side of the reaction have an equal balance of mass and charge.

This is accomplished by altering the compounds' coefficients.  In this example, the subscripts (tiny numbers towards the outside of some elements, including iron and oxygen) are never altered. Magnesium and bromine react to produce magnesium bromide. The balanced chemical equation for this reaction is Mg + Br[tex]_2[/tex] [tex]\rightarrow[/tex]  MgBr[tex]_2[/tex].

Therefore, the balanced chemical equation for this reaction is Mg + Br[tex]_2[/tex] [tex]\rightarrow[/tex]  MgBr[tex]_2[/tex].

To learn more about balanced equation, here:

https://brainly.com/question/29769009

#SPJ6

Answer:

law of inertia hope it helps

Answer:

1-water 2-Sun 3-Gravity

Answer:

V2O5 + 5CaS → 5CaO + V2S5

Answer:

Explanation:

In general, formation of bonds is always exothermic and bond breaking is always endothermic. In the methane-oxygen combustion reaction bonds in the reactants methane and oxygen are broken (endothermic) and bonds in carbon dioxide and water are formed (exothermic). One rule to keep in mind about all reactions whether overall energy change is endothermic or exothermic is that for the product compounds to form they must move to a lower energy level than the reactants. This will always translate into stronger bonds in the product compounds than the reactant compounds, otherwise the reaction would not occur.

Now, please understand that the energy lost on formation of each product compound (exothermic) is not the same as the 'overall' energy change of a reactions. Products form from elements with atomic structures ready to bond. The following diagram may be of interest in that it shows breaking of reactant bonds to push the elements into atomic states followed by bond formations to give product compounds.

CH₄ + 2O₂ => CO₂ + 2H₂O

 ↓ (endo)            ↑(exo)

     ··C·· + 4H· + 4·:O:·   <= (elements in atomic form ready to bond)

The above diagram refers to element to element interactions. The overall energy change of the reaction may be endothermic or exothermic. The combustion reactions are overall exothermic but the interaction of elements is endothermic for breaking reactant bonds and exothermic for formation of product bonds.

=> Sure hope this helps, but let me know if you need more explanations.

Answer:

number

Explanation:

2 is right