Based on your knowledge of chemical equations, what do you know for sure
about this equation?


Pls help I need it I’m dumb but I do need it! *here a pic*

Answer:

yes

Explanation:

Answer:

a copper pipe can't simply be welded directly to a lead pipe because lead has a far lower melting point than copper and thus the lead will melt before the copper can even be effected.

Explanation:

A lead pipe is a pipe that's made of lead and is usually used in distribution of potable water to connect a water main source to a user's preferred area.

Now, a copper pipe can't simply be welded directly to a lead pipe because lead has a far lower melting point than copper and thus the lead will melt before the copper can even be effected.

Lead has a melting point of 327.5° C while copper wire has a melting point of 1082.778 °C

Answer:

B

Explanation:

Condensation happen when water is warmed up in room temperature against a cold surface like water vapor

Given parameters:

Density of table salt = 2.16g/cm³

Mass of table salt  = 4.25kg = [tex]\frac{0.00425}{2.16}[/tex][tex]\frac{0.00425}{2.16}[/tex]g (1000g = 1kg)

Unknown:

Volume of table salt = ?

Solution:

To find the volume of the table salt, let us state the relationship between density, mass and volume.

 Density is the mass per unit volume of substance.

           Density  = [tex]\frac{mass}{volume}[/tex]  

Since the unknown is volume;

      Density x volume  = mass

                    Volume  = [tex]\frac{mass}{density}[/tex]

Input the parameters and solve';

                  Volume  = [tex]\frac{0.000425}{2.16}[/tex]  = 1.97 x 10⁻³cm³

Volume of the table salt is  1.97 x 10⁻³cm³

Answer:

the answer is A

Explanation:

This is very much true as seen by the fact that the people that work at nuclear power plants usually have to wear radiation suits.

Answer:

This question is unclear, the comprehensive question is:

To bring heavy boxes down a flight of stairs, Tyrone uses a ramp. He slides the boxes down the ramp. The movement transforms one type of energy into two other forms. Which of the following describes the way that most of the energy is transformed:

ANSWER:

Potential energy into heat and kinetic energy

Explanation:

According to this question, a ramp is used to bring heavy boxes down a flight of stairs. Tyrone does this by sliding the boxes down the ramp. The ramp is in a fixed position i.e. not moving, meaning the energy in the ramp is POTENTIAL ENERGY.

However, when the boxes slide down the ramp, the potential energy transforms to energy due to motion called KINETIC ENERGY, and HEAT ENERGY, which is caused by the friction between the boxes and the ramp.

Therefore, the potential energy of the ramp is transformed to kinetic energy in the boxes and heat energy.

Answer:

Average atomic mass of Cl = 35.48 amu

Average atomic mass of B  = 10.8  amu

Average atomic mass of Ag  = 107.96 amu

Explanation:

1)

Given data:

Abundance of Cl-35 = 75.8%

Abundance of Cl-37 = 24.2%

Average atomic mass = ?

Solution:

Average atomic mass = (abundance of 1st isotope × its atomic mass) +(abundance of 2nd isotope × its atomic mass)  / 100

Average atomic mass  = (75.8×35)+(24.2×37) /100

Average atomic mass =  2653 + 895.4 / 100

Average atomic mass  = 3548.4 / 100

Average atomic mass  = 35.48 amu

2)

Given data:

Abundance of B-10 = 19.8%

Abundance of B-11 = 80.2%

Average atomic mass = ?

Solution:

Average atomic mass = (abundance of 1st isotope × its atomic mass) +(abundance of 2nd isotope × its atomic mass)  / 100

Average atomic mass  = (19.8×10)+(80.2×11) /100

Average atomic mass = 198  +882.2  / 100

Average atomic mass  = 1080.2 / 100

Average atomic mass  = 10.8  amu

3)

Given data:

Abundance of Ag-107 = 52%

Abundance of Ag-109 = 48%

Average atomic mass = ?

Solution:

Average atomic mass = (abundance of 1st isotope × its atomic mass) +(abundance of 2nd isotope × its atomic mass)  / 100

Average atomic mass  = (52×107)+(48×109) /100

Average atomic mass =  5564 +5232  / 100

Average atomic mass  = 10796 / 100

Average atomic mass  = 107.96 amu

Answer:14

explanation: For CH3F, we have a total of 14 valence electrons. Hydrogen always goes on the outside of Lewis structures. And then Carbon is less electronegative than Fluorine, so let's put the Carbon in the center and the Hydrogens on the outside there, and the Fluorine on the top. We have a total of 14 valence electrons for CH3F.

Answer:

Net force= 0N or 0units

Object is balanced

Explanation:

Net force refers to all the sum total of all forces acting upon an object. In this case, a boy and a girl are pulling a heavy crate at the same time with 7 units of force each.

- This means that the force exerted on the crate by the boy is F1 = 7units

- The force exerted on the crate by the girl is F2 = -7units

Hence, the Fnet = F1 + F2

Fnet = 7 + (-7)

Fnet = 0 units

An object which possess a net force is said to be unbalanced, while an object with no net force i.e 0 units or N. Hence, the heavy crate in this case being pulled by a net force of 0units is BALANCED.

The force applied on the object is a balanced force since the object is at equilibrium.

The given parameters;

force applied by the boy, F₁ = 7 N

force applied by the girl, F₂ = 7 N

The net force on the object is the resultant of the two equal both opposite directed force.

Let the boy's direction be positive

Let the girl's direction be negative

The resultant of the two forces is calculated as;

[tex]\Sigma F_x = F_1 + F_2\\\\\Sigma F_x = (7 \ N) + (-7 \ N)\\\\\Sigma F_x = 0[/tex]

Thus, the force applied on the object is a balanced force since the object is at equilibrium.

Learn more here: https://brainly.com/question/931387

Answer:

4 Ethanol has a boiling point of 89 C at standard pressure.

Answer:

Hey mate.....

Explanation:

This is ur answer.....

---> Equal

hope it helps,

mark me as the brainliest,

Follow me......

Answer:

I am not quite sure if this is what you are looking for but each side of the equation should be equivalent.

Answer:

A physical property is an aspect of matter that can be observed or measured without changing its chemical composition. Examples of physical properties include molecular weight.

A chemical property may only be observed by changing the chemical identity of a substance. In other words, the only way to observe a chemical property is by performing a chemical reaction

Explanation:

Properties of matter

The properties of matter are classified into; (I) Physical and, (ii) Chemical properties.

Physical properties: A physical property is an aspect of matter that can be observed or measured without changing its chemical composition. Examples of physical properties include molecular weight, density, color, melting and boiling point, etc.

Chemical properties: A chemical property may only be observed by changing the chemical identity of a substance. In other words, the only way to observe a chemical property is by performing a chemical reaction. This property measures the potential for undergoing a chemical change. Examples of chemical properties include and oxidation states, acidic or basic properties, flammability, heat of combustion, etc.

Answer:

The magnitude of an earthquake, usually expressed by the Richter Scale, is a measure of the amplitude of the seismic waves

Explanation: The moment magnitude of an earthquake is a measure of the amount of energy released - an amount that can be estimated from seismograph readings

Answer: 3

Explanation:

Answer:

D

Explanation:

Because do all of that and then you do a conclusion

Answer: You could put the frozen block of ice on the stove and let it melt and eventually boil out leaving the salt behind

Explanation:

Answer:

A

Explanation:

I think...........maybe

Answer:

denaturing

Explanation:

enzyme denatures in extreme temperature and pH

Answer:

Denaturation

Explanation:

It change the shape of enzyme . It also occur in only high temperatures

Answer:

please mark brainliest!

Explanation:

Germanium is a chemical element with the symbol Ge and atomic number 32. It is a lustrous, hard-brittle, grayish-white metalloid in the carbon group, chemically similar to its group neighbours silicon and tin.

Answer:

F₂ = 3.97 F₁

Hence, the force will be increased by a factor of 3.97

Explanation:

The force between the ball and the bowling pin is given by Newton's Gravitational Law, as follows:

F = Gm₁m₂/r²

where,

F = Force

G = Gravitational Constant

m₁ = mass of ball

m₂ = mass of bowling pin

r = distance between ball and bowling pin

So, initially:

F₁ = G(3.6 kg)(1.36 kg)/r²

F₁ = 4.896 G/r²

After increase in masses:

F₂ = G(7.2 kg)(2.7 kg)/r²

F₂ = 19.44 G/r²

F₂/F₁ = (19.44 Gr²)/(4.896 G/r²)

F₂ = 3.97 F₁

Hence, the force will be increased by a factor of 3.97

Answer:

C-

Ionic

Explanation:

Just did the quiz

The bonding occurs between the valence electron of an atom. The ionic bond involves the transfer of electrons between atoms. Thus, option c is correct.

A chemical bond that involves the complete transfer of electron/s from one element to another in a molecule or compound is an ionic bond.

The ionic bonds comprise cations that gave the electron to another element called the anion that gained or accepted the electron. This results in an attractive force between them to form a bond.

The positive and negative charges attract one another which leads to the formation of the ionic bond. The most common example is NaCl in which sodium has a positive and chloride has a negative charge.

Therefore, option c. ionic bond involves the transfer of electrons.

Learn more about ionic bonds here:

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Answer:

Explanation:

The density of a substance can be found by using the formula

[tex]density = \frac{mass}{volume}\\[/tex]

From the question

mass = 8.32 g

volume = 4.3 mL

So we have

[tex]density = \frac{8.32}{4.3} \\ = 1.934883720...[/tex]

We have the final answer as

Hope this helps you

Answer a, is the answer i guess also guys take up the answers so no one else can get annoyed

Answer:

A

Explanation:

I took the quiz and I believe this was the correct answer.

Answer:

balance

Explanation:

because you just add together but they just switch the 2 and 3

Answer:

True

Explanation:

Homo = same

Hetero = different

Answer:

Explanation:

The density of a substance can be found by using the formula

[tex]density = \frac{mass}{volume} \\ [/tex]

We have

[tex]density = \frac{10}{5} \\ [/tex]

We have the final answer as

Hope this helps you

Answer:

An electromagnet is a coil of wire wrapped around a bar of iron or other ferromagnetic material. When electric current flows through the wire, it causes the coil and iron bar to become magnetized. An electromagnet has north and south magnetic poles and a magnetic field.

Explanation:

The three main components of an electromagnet are the iron core, copper wire, and an electricity source.

An electromagnet is a magnet in which a coiled or wrapped wire is given electricity. When Current is given to this wire, it acts like a magnet. An electromagnet is used to create a magnetic field.

The three main parts of the electromagnet are the iron core, that is the magnet, which is a small round, or square brick-like. The wire, wire, is made up of copper. The electricity source, by which electricity is given to the electromagnet.

Examples of electromagnets are induction cookers, doorbell rings, etc. They are controllable and adjustable magnets and are used in most electric appliances.

Thus, the three parts are the iron core, copper wire, and an electricity source.

To learn more about electromagnet, refer to the below link:

https://brainly.com/question/3427992

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