in the following acid-base reaction, h20 is the____ hci(g)+h2o(I) = h3o+(aq)+ci-(aq)

Answer:

0.02 mol.

Explanation:

Explanation:

Start with a balanced equation.

2H2 + O2 → 2H2O

Assuming that H2 is in excess, multiply the given moles H2O by the mole ratio between O2 and H2O in the balanced equation so that moles H2O cancel.

5 mol H2O × (1 mol O2/2 mol H2O) = 2.5 mol O2

Answer: 2.5 mol O2 are needed to make 5 mol H2O, assuming H2 is in excess.

Answer:

1

Explanation:

Formula of molarity is

[tex]M=\frac{n}{v}[/tex]

M= molarity

n= no of moles

v= volume in liters (if mL then you have to convert it to L)

A the soda will increase in volume

farting pooping peeing :3

Answer:

Hey mate...

Explanation:

This is ur answer.....

This is because fluorine atoms are the smallest of the halogens—the atoms are bonded close together, which leads to repulsion between free electrons in the two fluorine atoms.

Hope it helps you,

mark me as the brainliest....

Follow me! :)

Answer:

The fox who shed their heavy coat in the summer.

Explanation:

If a fox has the ability to shed its coat in the summer, it will have no difficulties adapting to new temperatures even during winter. However, the heavy-coated one will.

The pine tree that produced the seed would be the only parent of a pine seed that was formed through self-pollination. So, the correct option is A.

In the process of self-pollination, pollen from one flower or plant fertilizes the egg cells of another flower or plant. For self-fertilization to occur, both male and female reproductive components must be present within the same flower or plant.

The pollen from the male flower component, the anther, is carried to the female component, the stigma, during self-pollination either by the wind or by pollinators like bees, butterflies, or birds.

A pine tree that produces seeds will be the sole parent of pine seeds that form through self-pollination. Self-pollination occurs when pollen from the same pine tree fertilizes the pine tree's own egg cells, producing seeds with the genetic makeup of only one individual.

Therefore, the correct option is A.

Learn more about Self-pollination, here:

https://brainly.com/question/19910654

#SPJ2

Answer:

98.04 ml

Explanation:

density of water is 1g/ml

since volume =mass/density

=98.04/1

= 98.04

Answer:

Volcanic eruption

Explanation:

a crater is this bowl shaped hole in the ground, and it is caused by a meteorite or volcanic activity

Answer:

1 & 3

Explanation:

Elements have similar chemical and physical properties if and only if they belong to the same group of elements in the periodic table.

A group of elements in the periodic table is a family of elements, the elements in the in the same group have the same number of valence electrons in their outermost shell, share similar chemical reactivity (with slight variation within the group) and similar physical properties  (with slight variation within the group).

Magnesium, radium, beryllium and barium all belong to group 2 hence they have similar chemical and physical properties.

Answer:

are temperature range for are planet is -129 ⁰F (-18⁰C) that's the minimum.

+136⁰F (+58⁰C) this is the maximum surface temperature

Explanation:

"the planet is not too close or too far away from the sun, earth's atmosphere also plays a vital role is regulating the temperature by providing a blanket of gases that not only protects us from excessive heating and harmful radiation from the sun, but also traps heat rising from earth's interior core, keeping us warm"- Space.com

Answer:

Rubidium is a typical but very reactive member of the series of alkali metals. It is appreciably more reactive than potassium, but less so than caesium, and so would be expected to react more violently with those materials that are hazardous with potassium or sodium.

Answer:

Rb is more reactive .

Rubidium is the second most reactive metal and is very soft, with a silvery-white lustre.

..................

Answer:

Cobalt was the first metal to be discovered since prehistoric times and the first metal with a recorded discoverer.

Cobalt-60 is used to create gamma rays which are used to treat cancer and to sterilize medical supplies.

Cobalt is one of only three naturally occurring magnetic metals, making it very useful for the uniquely calibrated magnets found in generators and hard drives. ...

Cobalt has been utilized by man for at least the last 2,600 years, providing blue pigments for glassware and ceramics.

Explanation:

Answer:

- Doesn’t exist naturally on earth.

- Isolated in 18th century

- we use cobalt for magnets

- isn’t rare

Answer: Yes they do;

Explanation:

Axons, the long projections of neural cells that make up our peripheral nervous system's nerves, are comparable to power wires in that they have dense electrical insulation and can easily transmit impulses from the body and signals from the brain to a toe, for example.

Answer: a- 323 b- 15

Explanation:

Answer:

A food web is made up of all the food chains in a single ecosystem. Each living thing in an ecosystem belongs to many food chains. A food chain is a path that energy takes through a certain ecosystem. Trophic Levels. Organisms in food webs are grouped into categories called trophic levels.

Explanation:

I HOPE THIS HEPLS HAVE A WONDERFUL DAY!:)

Answer:

you didnt say if it was an animal or people food web so imma just try my best to explane tis is an animal food web. So it really is just showing was the animals eat and if they eat other animal basicly.

Explanation:

Answer:

B.) Multicellular organisms are made of many cells and have specialized shapes that allow them to perform specific functions

Explanation:

Multicellular means that there is more than one cell.

Hope this helps!

Answer: The enthalpy change for formation of butane is -125 kJ/mol

Explanation:

The balanced chemical reaction is,

[tex]C_4H_{10}(g)+\frac{13}{2}O_2(g)\rightarrow 4CO_2(g)+5H_2O(l)[/tex]

The expression for enthalpy change is,

[tex]\Delta H=[n\times H_f{products}]-[n\times H_f{reactants}][/tex]

Putting the values we get :

[tex]\Delta H=[4\times H_f_{CO_2}+5\times H_f_{H_2O}]-[1\times H_f_{C_4H_{10}}+\frac{13}{2}\times H_f_{O_2}][/tex]

[tex]-2877=[(4\times -393)+(5\times -286)]-[1\times H_f_{C_4H_{10}}+\frac{13}{2}\times 0][/tex]

[tex]H_f_{C_4H_{10}=-125kJ/mol[/tex]

Thus enthalpy change for formation of butane is -125 kJ/mol

Answer:

The answer is 0.073

Explanation:

Final step: 0.73 x 10^-1

Answer:

Hunds Rule

Explanation:

The principle states that electrons in the same sublevel (p, d, or f) are placed in individual orbitals, before they are paired up, to increase atomic stability is Aufbau principle, therefore option (a) is correct.

What is Aufbau principle ?

Aufbau principle states that electrons are filled into atomic orbitals in the increasing order of orbital energy level.

According to the Aufbau principle, the available atomic orbitals with the lowest energy levels are occupied before those with higher energy levels.

The rule/principle states that electrons in the same sublevel (p, d, or f) are placed in individual orbitals, before they are paired up, to increase atomic stability is Aufbau principle, therefore option (a) is correct.

Learn more about Aufbau principle, here:

https://brainly.com/question/15006708

#SPJ6

Answer:

1. B

2. 100 C

3.  C

4. D

5. D

Explanation:

Answer:

Sorry I am not very good at chemistry.

Explanation:

Answer:

Hope this helps and have a good day!

Explanation:

Double glazed is a fancy term for a window that has two panes of glass. There are also triple glazed windows (three panes). The multiple panes of glass in a single window frame helps with insulation.