How can I solve this?

Answer:

Explanation:

is the

Answer:

The scientific method attempts to minimize the influence of bias or prejudice in the experimenter. Even the best-intentioned scientists can't escape bias. ... That's the job of the scientific method. It provides an objective, standardized approach to conducting experiments and, in doing so, improves their results.

Answer:

to get used to them

Explanation:

you have to practice them so that they can get into your head

Answer:

[tex]98 \times x6x \geqslant {36461 { {3 \frac{ \sqrt[ |?| ]{?} }{?} }^{2} }^{?} }^{2} [/tex]

okay

Answer: potassium and rubidium

Explanation:

1) The group 1 of the periodic table contain six elements namely Lithium(Li), Sodium(Na),Potassium(K),Rubidium(Rb),Cesium(Cs) and Francium(Fr). These metals are called alkali metals because they form alkalies( i.e. strong bases capable of neutralizing acids) when they react with water.

2) The heavier alkali metals (K, Rb, and Cs) react so vigorously that they invariably explode.

3) This trend, which is not consistent with the relative magnitudes of the reduction potentials of the elements, serves as another example of the complex interplay of different forces and phenomena—in this case, kinetics and thermodynamics.

Answer:

Igneous or sedimentary rocks.

Explanation:

The presence of metamorphic rock is most likely evidence of that the rock formed from igneous or sedimentary rocks. The igneous rock converted into metamorphic rocks when the rock experience intense heat and pressure within the Earth's crust. These metamorphic rocks are crystalline and often have a “squashed” texture. So due to high temperature and pressure, the metamorphic rock is formed from igneous rock.

Answer:

From Pressure Law

P1/T1 = P2/T2

Changing our temp to kelvin

T1 = 47 +273 = 320K

We're looking for T2

Making T2 the subject

T2 =P2 x T1 / P1

= 655 x 320/850

T2 = 246K

Answer:

(C15H15N)

Explanation:

Answer: Petah is the leader of the gang. They take him in, feed him, and allow him to sleep in the pipes by the river ith them. As he learns to fend for himself he leaves the pain of the past behind even ridding himself of his forer name, deeming himself Tsotsi-gangster.

Explanation:

Answer:

The ionic compounds are chemical compounds composed of ions, which is held together by electrostatic forces termed ionic bonding.

Answer:

[tex]v_2=6,48*10^{-4}L[/tex]

Explanation:

From the question we are told that:

Volume of hydrogen  [tex]V_1=30mL=>30*10^{-3}[/tex]

Temperature [tex]T_1=24C=>24+273=>297k[/tex]

Pressure of water [tex]P_1=22.4torr=>\frac{22.4}{760}=0.0295atm[/tex]

Let

STP(Standard Temperature and pressure)

 [tex]T_2=273K[/tex]

 [tex]P_2=1atm[/tex]

Generally the equation for ideal gas is mathematically given by

 [tex]\frac{p_1V_1}{T_1}=\frac{P_2V_2}{T_2}[/tex]

Therefore

 [tex]v_2=\frac{P_1v_1T_2}{T_1P_2}[/tex]

 [tex]v_2=\frac{0.0295*30*10^{-3}*273}{297*1}[/tex]

 [tex]v_2=6.48*10^{-4}L[/tex] (at STP(Standard Temperature and pressure))

Answer:

D. Provides higher resolution images

Explanation:

The advantages gained by the use of digital data transmission instead of analog transmission are;

1) Noise do not damage digital signal transmission but they impact on analog signals. Digital signals are therefore more secure than analog signals

2) The bandwidth required for digital signal transmission is much less than the bandwidth required for analog

3) Digital signal allow data transmission to very long distance

4) The rate of transmission with digital signals is higher with digital signals

5) Digital signals allow easy and cost effective methods by which they are  replicated

The resolution of an image is a measure of the amount of pixels displayed per inch of the image, such that a high resolution image has more pixel per inch of the image. It is therefore a factor determined at the source of the image based on how much detail is required in an image before transmission

Answer:

halogen

Explanation:

because the lewis dot structure shows 7 dots which means 7 valence electron. halohe falls on group 17 or7A having 7 valence electron

Answer:

No because it's located inside the nucleus of the atom

hope this helps

have a good day :)

Explanation:

Answer:

C) A constant that states how many atoms/molecules are in one mole of anything

Explanation:

Avogadro's number like the name suggests is a constant that states how many atoms/molecules are in one mole of anything.

Answer:

dfgdhfjkl;jhgfdsAZXcvdfcgbwegbfgvdavsbhgsvadrfgvrdt

Explanation:

Answer:

temperature of a metal is29.8

temp. of water is 6.2

temp. change of metal -40.6

Explanation:

Answer:

110.984  ?

i apologize if i'm wrong, you can report it if im wrong

have a good day/ night

Explanation:

Answer:

https://www.webqc.org/balance.php

Explanation:

this is the website i used to balance all my chem equations

i promise its not a scam its a legit website lol it works rly well

Answer:

5 Different Types of Corrosion Prevention Methods

Barrier Coatings. One of the easiest and cheapest ways to prevent corrosion is to use barrier coatings like paint, plastic, or powder. ...

Hot-Dip Galvanization. ...

Alloyed Steel (Stainless) ...

Cathodic Protection. ...

EonCoat.

Answer:

iqjapsgvöaöqpwüsbwjwj

Answer:

electric charges.

Explanation:

Conduction involves the transfer of electric charge or thermal energy due to the movement of particles. When the conduction relates to electric charge, it is known as electrical conduction.

An electron can be defined as subatomic particles that are negatively charged and as such has a magnitude of -1.

An electric current is produced when electric charges (electrons) move continuously and it's measured in Amperes through the use of an ammeter.

Ohm's law states that at constant temperature, the current flowing in an electrical circuit is directly proportional to the voltage applied across the two points and inversely proportional to the resistance in the electrical circuit.

Mathematically, Ohm's law is given by the formula;

[tex] V = IR[/tex]

Where;

V represents voltage measured in voltage.

I represents current measured in amperes.

R represents resistance measured in ohms.

Answer:

A mixture

Explanation:

Answer:

1.5 moles of KMnO4 will be produced from 1.5 moles of MnO2

Explanation:

The balanced equation of this chemical reaction is

2 MnO2 + 4 KOH + O2 → 2 KMnO4 + 2 KOH + H2

2 moles of MnO2 produces 2 moles of   KMnO4

That means 1 moles of KMnO4 will be produced from 1 moles of MnO2

Hence, 1.5 moles of KMnO4 will be produced from 1.5 moles of MnO2

The moles of manganese oxide were used in the reaction is 1.5 moles.

Stoichiometry of any reaction tells about the relative amount of species present before and after the chemical reaction.

Given chemical reaction is:

2MnO₂ + 4KOH + O₂ → 2KMnO₄ + 2KOH + H₂

From the stoichiometry of the reaction, it is clear that same moles of manganese oxide and potassium permanganate is involved in the reaction.

2 moles of KMnO₄ = produce by 2 moles of MnO₂

1.5 moles of KMnO₄ = produce by 2/2×1.5=1.5 moles of MnO₂

Hence, required moles are 1.5 moles.

To know more about moles, visit the below link:

https://brainly.com/question/24631381

Answer:

a. Creative solutions are often needed to solve technical problems.

Explanation:

Science in itself is a voyage of discovery. Scientific investigators focusing on various issues are often working hard to find creative solutions to complex technical problems.

In order to find solutions to all these problems bedeviling humanity, scientific investigators must be quite creative. Creativity is always at the bedrock of finding solutions to the complex technical problems of the world which happens to be the ultimate goal of science.

Hence, creativity is indispensable in scientific investigation and creative solutions are often needed to solve technical problems.

Answer:

a. Creative solutions are often needed to solve technical problems

Explanation:

Scientific investigation is the process using the scientific method which consists of empirical techniques in obtaining answers to question raised and used for driving the investigation

The scientist carrying out the investigation into the new area, is therefore required to be creative in adapting the available resources in answering the questions based on the scientific method

Answer:

Metal

Non-metal

Explanation:

Ionic compounds are said to be formed when metals donate electrons to non metals.

The metals become positively charged while the nonmetals become negatively charged.

CaF2 is composed of Ca^2+ and F^-. Calcium is a metal of group 2 in the periodic table while F is a nonmetal of group 17 in the periodic table.

Hence CaF2 is composed of a metal and a nonmetal.