Where are all metalloid found in this periodic table?

Answer:

They all contain sone hydrogen atoms.

Explanation:

H is hydrogen doi

Answer:

Number of moles of HCl = 0.17 mol

Explanation:

Given data:

Volume of solution = 347 mL

Molarity of solution = 0.48 M

Number of moles of HCl present = ?

Solution:

Formula:

Molarity = number of moles of HCl / volume in L

Volume in L:

347 mL× 1L / 1000 mL

0.347 L

by putting values in formula:

0.48 mol/L = number of moles / 0.347 L

Number of moles = 0.48 mol/L × 0.347 L

Number of moles = 0.17 mol

Answer:

1 × 10⁸ He atoms

Explanation:

Step 1: Given data

Step 2: Convert "d" to meters

We will use the conversion factor 1 m = 10¹² pm.

1 × 10² pm × (1 m / 10¹² pm) = 1 × 10⁻¹⁰ m

Step 3: Convert "D" to meters

We will use the conversion factor 1 m = 100 cm.

1 cm × (1 m / 100 cm) = 0.01 m

Step 4: Calculate the number of atoms of He required

We will use the following expression.

D/d = 0.01 m / 1 × 10⁻¹⁰ m = 1 × 10⁸

Answer:

B

Explanation:

Protons are located in the nucleus, which takes out c

Electrons are in specific shells, so b is the answer

Answer:

to make it basic from acidic

Answer:b

Explanation:

The value of x = 97

The unknown angles : 97°,97°, 107° and 59°

One variable linear equation is an equation that has a variable and the exponent number is one.  

Can be stated in the form:  

[tex]\large{\boxed{\bold{ax=b}}[/tex]

or  

ax + b = c, where a, b, and c are constants, x is a variable  

The parallelogram has total angle of 360°.

The value of each of the 4 angles of the parallelogram :

1. x°

2. x°

3. x+10°

4. 59°

The sum of the four angles of this parallelogram is :

[tex]\tt x+x+x+10+59=360[/tex]

So that the mathematical equation becomes (by combining the like terms) :

[tex]\tt 3x+69=360\\\\3x=291\\\\x=97[/tex]

So the value of the four angles (by entering the x value)

1. 97°

2. 97°

3. x+10=97+10=107°

4. 59°

Answer:

Hella false

Explanation:

big cap.

hope this helped, please make me brainliest

Given :

Initial concentration of nitric acid, [tex]C_1 = 16\ M[/tex].

Final concentration of nitric acid, [tex]C_2 = 0.250 \ M[/tex].

Volume of [tex]HNO_3[/tex], [tex]V _2= 500\ mL = 0.5\ L .[/tex]

To Find :

Volume needed( [tex]V_1[/tex] ).

Solution :

We know,

[tex]C_1V_1 =C_2V_2\\\\16 \times V_1 = 0.250 \times 0.5 \\\\V_1 = \dfrac{0.250 \times 0.5}{16}\\\\V_1 = 0.0078125\ L = 7.8125 \ mL[/tex]

Hence, this is the required solution.

Answer:

conduction

Explanation:

Conduction happens when 2 objects with different temperatures come in contact with each other. The heat transfers from the hotter object to the cooler object.Apr

Answer: Conduction

Explanation: Conduction: Conduction happens when 2 objects with different temperatures come in contact with each other. The heat transfers from the hotter object to the cooler object.

sorry I didn't understand the question ask you to do

Answer:

i think 12 moles of CO2 will be produced

Answer:

pfffft definitely 10. smh silly goose

"Ground squirrels eat nuts, leaves, roots, seeds, and other plants. They also catch and eat small animals, such as insects and caterpillars.Though they are terrific climbers, these squirrels do come to the ground in search of fare such as nuts, acorns, berries, and flowers. They also eat bark, eggs, or baby birds."

Answer:alkali metals group 1

Explanation:practice and get better

Answer:

A

Explanation:

Answer:

I need this too but nobody knows how :(

Explanation:

Answer:

A is condensation

B  is Conduction

C is erosion

D is radiation

E is deposition

Explanation:

Answer:

This is the tendency for particles in suspension to settle out of fluid in which they are contained and come to rest against a barrier.

Explanation:

In sedimentation, the particles are in a fluid and under the influence of forces , for example, gravitational forces, they settle and then come to rest when faced with a barrier.

The settling process is the process in which the particles fall out of liquid and sedimentation is the end of the process.

Answer:

General formula of alkanes is: [tex]C_{n}H_{2n+2}[/tex]

General formula of alkyl: [tex]C_{n}H_{2n+1}[/tex]

The phrase which best describes gravitational attraction is the pull

between objects with mass.

Gravitational attraction is the attraction which occurs between two objects

with mass. The force of attraction has a magnitude which is directly

proportional to the masses of the two objects and inversely proportional to

the square of the distance between the two objects.

This is the reason why option D i9s the most appropriate option as it deals

with pull or attraction.

Read more about Gravitational attraction here https://brainly.com/question/15090289

Answer:

it is the unit of Force

Explanation:

force is equal to Newton

Answer:

its (D) Balance the half reactions based on the number of electrons.

Explanation:

Answer:

D ✔️

Explanation:

"Balance the half reactions based on the number of electrons."

Answer:

A and C

Explanation:

Hope this helps :)

Answer:

I think B and C hope this helps!

Explanation:

Answer:

may involve a change in total mass

involve very high-energy changes

involve changes in nuclides when decay occurs

Explanation:

A nuclear reaction is different from a typical chemical reaction. The reaction occurs within the nucleus and involved nuclear materials.

Answer:

the answer to this question is option A mark me as brainliest

mark me as brainliest

Answer:

1 and 2

Explanation:

The given equation is:

        Cl₂  +  H₂   →   2HCl

A coefficient is the variable or number before a chemical specie.

In this reaction Cl₂ and H₂ are the reactants;

  The coefficient of Cl₂ is 1,

                                   H₂ is 1,

                                  HCl is 2

The subscript is the number to the lower power after a chemical specie is denoted.

    For Cl₂, it is 2

A number before a chemical atom or molecule is called a coefficient. The coefficient of chlorine is one (1), and its subscript is two (2).

A subscript is a number or symbol written at the bottom right of the chemical atom or the molecule in a compound.

The balanced chemical reaction is shown as:

[tex]\rm Cl_{2} + H_{2} \rightarrow 2HCl[/tex]

The coefficient in chlorine is 1, hydrogen is 1, and hydrochloric acid is 2. The subscript in chlorine gas is 2, and hydrogen gas is 2.

Therefore, the coefficient is 1, and the subscript is 2.

Learn more about coefficient here:

https://brainly.com/question/3985848

Answer:

This question is incomplete as it lacks the number of moles of Bromine. The complete part is as follows: 0.0900 moles of bromine liquid participate in a chemical reaction.

The answer is 7.191g

Explanation:

The number of moles in a substance can be calculated thus;

moles = mass/molar mass

Atomic mass of Bromine = 79.9g/mol

According to the question, the chemist determines by measurements that 0.0900 moles of bromine liquid participate in a chemical reaction. To calculate the mass of bromine liquid that participates, we say;

Mass = moles × molar mass

Mass = 0.0900 × 79.9

Mass = 7.191g

Therefore, 7.191g of Bromine will participate in the chemical reaction.

Answer:

vb

Explanation:

b

Answer:

photosynthesis

Explanation:

Answer:

C. A human shivers when exposed to cold weather.

Explanation:

Homeostasis simply refers to balance, which is desirable in the context of an organism. In this problem, the only one that demonstrates this is a human shivers when exposed to cold weather. By using kinetic energy, heat is generated, maintaining a balance, so to speak.

(btw you may find it more helpful to post these types of problems under biology in the future.)