I need help with this ASAP! Please help me, thank you. Please answer these questions. Use the time zone map.
1)Daniel and Jody are flying to Massachusetts for a wedding. If their plane leaves California at 7:00 a.m. PST and lands in Massachusetts at 3:30pm EST, what time will it be in California when they arrive?
2)If a live New Year's Eve TV special begins broadcasting at 10:00 pm EST in New York, what time should viewers in Oregon tune in? 3)Chance wants to wish his cousin a happy birthday at 9:00am CST. Chance lives in Texas and his cousin lives in Ohio. What time will it be at his cousin's house when Chance calls to say happy birthday?

Answer:

Rudolf Virchow was trying to prove through his work that spontaneous generation didn't happen.

Explanation:

Rudolf Virchow was trying to prove through his work that spontaneous generation didn't happen.

Answer:

ones analog and ones digital.

Explanation:

The difference between the two are that one loses quality but is easier to transfer, however digital takes longer to transfer, however this makes the quality the same.

Answer:

900 mg

Explanation:

Answer:

Radius of the steel ball is 4.6mm

Explanation:

Hello,

To find the radius of the steel, we'll have to calculate it from it's volume which can be gotten from the density of the material.

Data;

Mass = 3.25g

Density = 7.86g/cm³

Density = mass / volume

Volume = mass / density

Volume = 3.25 / 7.86

Volume = 0.413cm³

Volume of a steel = 4/3πr³

0.413 = 4/3 × π × r³

0.413 = 1.33 × 3.14 × r³

0.413 = 4.1762r³

r³ = 0.413 / 4.1762

r³ = 0.099

Take the cube root of both sides

r = 3√(0.099)

r = 0.46cm

From metrics table

1cm = 10mm

0.46cm = x mm

x = (0.46 × 10)

x = 4.6mm

The radius of the steel ball is 4.6mm

Answer:

The basic unit of energy is the joule, also known as SI unit

Explanation:

Explanation:

1st one will be cathodic reaction and reduction will occur since electrons are being gained and hydrogen goes from +1 to zero oxidation state.

2nd one will be anodix reaction and oxidation will take place because Iodide ion's oxidation number increases from -1 to 0

Answer:

30.48g of N2H4

Explanation:

Step 1:

The balanced equation for the reaction. This is given below:

N2H4 + 7H2O2 → 2HNO3 + 8H2O

Step 2:

Determination of the mass of N2H4 that reacted and the mass HNO3 produced from the balanced equation. This is illustrated below:

Molar mass of N2H4 = (14x2) + (4x1) = 32g/mol

Mass of N2H4 from the balanced equation = 1 x 32 = 32g

Molar Mass of HNO3 = 1 + 14 + (16x3) = 63g/mol

Mass of HNO3 from the balanced equation = 2 x 63 = 126g

Summary:

From the balanced equation above,

32g of N2H4 reacted to produce 126g of HNO3.

Step 3:

Determination of the mass of N2H4 required to produce 120g of HNO3. This is illustrated below:

From the balanced equation above,

32g of N2H4 reacted to produce 126g of HNO3.

Therefore, Xg of N2H4 will react to produce 120g of HNO3 i.e

Xg of N2H4 = (32 x 120)/126

Xg of N2H4 = 30.48g

Therefore, 30.48g of N2H4 is required to produce 120g of HNO3.

Answer:

KINETIC ENERGY

Explanation:

Answer:

Phenol reacts with formaldehyde to form Phenol-formaldehyde resins  which is used to make plastic bakelite. Phenol-formaldehyde resins are made through a step-growth polymerization reaction.

equation of polymerization reaction in which Phenol (HOC6H5) reacts with formaldehyde (CH2O) is as following:

1. HOC6H5 + CH2O =>  HOC6H4CH2OH (hydroxymethyl phenol)

hydroxymethyl phenol then reacts with another hydroxymethyl group in next two steps and form methylene bridge (at firs) and ether bridge (secondly)

2. HOC6H4CH2OH + HOC6H5  => (HOC6H4)2CH2 + H2O

3. 2 HOC6H4CH2OH => (HOC6H4CH2)2O (bisphenol F) + H2O

Bisphenol F is the the diphenol (HOC6H4)2CH2 that is formed as the result and used to produce epoxy resins.

Answer:

hope this is correct

The oxidizing agent is F and The reducing agent is Ni.

An oxidizing agent also known as an oxidant, oxidizer, electron recipient, or electron acceptor is a substance in a redox chemical reaction that gains or "accepts"/"receives" an electron from a reducing agent called the reductant, reducer, or electron donor.

In chemistry, a reducing agent also known as a reductant, reducer, or electron donor is a chemical species that "donates" an electron to an electron recipient called the oxidizing agent, oxidant, oxidizer, or electron acceptor.

The oxidizing agent is F and The reducing agent is Ni.

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Answer:

I can't see the picture so I'm not able to help you.

Explanation:

I'm incredibly sorry. Try to have a blessed day.

Answer:

D. A weakly acidic solution.

Answer:

The electrons are found on the atomic nucleus.

Explanation:

529.6 g Cd₃N₂

Math

Pre-Algebra

Order of Operations: BPEMDAS

Chemistry

Atomic Structure

Step 1: Define

1.450 mol Cd₃N₂

Step 2: Identify Conversions

Molar Mass of Cd - 112.41 g/mol

Molar Mass of N - 14.01 g/mol

Molar Mass of Cd₃N₂ - 3(112.41) + 2(14.01) = 365.25 g/mol

Step 3: Convert

[tex]\displaystyle 1.450 \ mol \ Cd_3N_2(\frac{365.25 \ g \ Cd_3N_2}{1 \ mol \ Cd_3N_2} ) = 529.613 \ g \ Cd_3N_2[/tex]

Step 4: Check

Follow sig fig rules and round. We are given 4 sig figs.

529.613 g Cd₃N₂ ≈ 529.6 g Cd₃N₂

Answer:

529.6 g

Explanation:

i took the test

Answer:

The molecular formula of Carbon Dioxide is CO2

Answer:

Morality of a solution = 0.38461

Explanation:

Given:

Amount moles in solution = 5 moles of solute

Amount of solvent = 13 kg

Find:

Morality of a solution.

Computation:

⇒ Morality of a solution = Amount of mole solute / Amount of solvent

⇒ Morality of a solution = 5 / 13

⇒ Morality of a solution = 0.38461

⇒ Morality of a solution = 0.385 (Approx)

Answer/Explanation:

Dimitri Ivanovich Mendeleev

Please mark me BRAINLIEST! please!

Answer:

O = 94.117%

H = 5.882%

Explanation:

Hydrogen peroxide (H202) Molar Mass = 34g

OH 1-  17g/mol

H 1+ = 1g/mol

O = 16g/mol

2 Grams H

32 grams O

Percentage composition of  Hydrogen peroxide

O = 32/34 = 94.117%

H =    2/34 =   5.882%

Answer:

Answer in the picture

Explanation:

Answer:

The answer is B.

Explanation:

Ethical concerns affect scientific research when scientists or groups of scientists let their personal bias or political persuasions affect the research being conducted. Scientific ethics involve doing experimentation and analysis of data without bias no matter what the conclusions point to.

Ethical principles dictate that researchers have a responsibility to ensure that their work does not cause harm to human beings, animals, or the environment. The correct answer is B. Scientists should not be allowed to conduct research that is harmful to others.

Research involving human subjects, for example, must adhere to strict ethical guidelines, such as informed consent and minimizing risks. Ethical review boards or committees often evaluate research proposals to ensure that potential harm is minimized or avoided.

Ethics significantly affect scientific research by guiding researchers to conduct their work responsibly, ensuring the well-being of individuals and society, and addressing potential conflicts between scientific advancement and ethical principles.

Therefore, the correct answer is B. Scientists should not be allowed to conduct research that is harmful to others.

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Answer:

they tend to be base

Explanation:

this because when they are manufactured they dont tend to use acid solution

Answer:

1) positive

2)2

3)strontium

Explanation:

Answer:

A. 3.36g of Na.

B. 14.62g of Ba3(PO4)2.

Explanation:

We'll begin by writing the balanced equation for the reaction. This is given below:

3Ba + 2Na3PO4 → 6Na + Ba3(PO4)2

Next, we shall determine the mass of Ba that reacted and the mass of Na and Ba3(PO4)2 produced from the equation.

This is illustrated below:

Molar Mass of Ba = 137g/mol

Mass of Ba from the balanced equation = 3 x 137 = 411g

Molar mass of Na = 23g/mol

Mass of Na from the balanced equation = 6 x 23 = 138g

Molar mass of Ba3(PO4)2 = (3 x 137) + 2[31 + (4x16)] = 411 + 2[31 + 64] = 601g/mol

Mass of Ba3(PO4)2 from the balanced equation = 1 x 601 = 601g

Summary:

From the balanced equation above,

411g of Ba reacted to produce 138g of Na and 601g of Ba3(PO4)2.

A. Determination of the mass of Na produced by reacting 10g of Ba.

From the balanced equation above,

411g of Ba reacted to produce 138g of Na.

Therefore, 10g of Ba will react to produce = (10 x 138)/411 = 3.36g of Na.

Therefore, 3.36g of Na is produced.

B. Determination of the mass of Ba3(PO4)2 produced by reacting 10g of Ba.

From the balanced equation above,

411g of Ba reacted to produce 601g of Ba3(PO4)2.

Therefore, 10g of Ba will react to produce = (10 x 601)/411 = 14.62g of Ba3(PO4)2.

Therefore, 14.62g of Ba3(PO4)2 is produced.

Answer:

0.93L

Explanation:

We'll begin by calculating the number of mole of present 374g of KNO3. This is illustrated below:

Mass of KNO3 = 374g

Molar mass of KNO3 = 39 + 14 + (16x3) = 101g/mol

Number of mole of KNO3 =..?

Mole = Mass /Molar Mass

Number of mole of KNO3 = 374/101 = 3.7 moles

Now, we can calculate the volume of the solution as follow:

Mole of KNO3 = 3.7 moles

Molarity = 4M

Volume =..?

Volume = mole /Molarity

Volume = 3.7/4

Volume = 0.93L

Therefore, the volume of the solution is 0.93L

Answer:

THE VOLUME OF A 4 M SOLUTION THAT CONTAINS 374 g OF KNO3 IS 0.93 L

Explanation:

Number of moles = concentraion * volume

Number of moles can also be written as:

number of moles = mass / molar mass

Calculate the molar mass of KNO3 where (K = 39, N = 14, 0=16)

molar mass of KNO3 = (39 + 14 + 16*3) = 101 g/mol

So therefore:

mass / molar mass = concentration * volume

where;

mass = 374 g

molar mass = 101 g/mol

concentration = 4 M

volume = unknown

Hence,

374 / 101 = 4 * V

V = 374 / 101 * 4

V = 374 / 404

V = 0.9257 dm3

The volume of a 4M solution that contains 364 g of KNO3 is approximately 0.93 L

Answer:

0.5 M

Explanation:

First we have to start with the molarity equation:

[tex]M=\frac{mol}{L}[/tex]

We need to know the amount of moles and the litters.

If we have 100 mL we can convert this value to “L”, so:

[tex]100~mL\frac{1~L}{1000~mL}[/tex]

[tex]0.1~ L[/tex]

Now we can continue with the moles, for this we have to know the formula of sodium sulfate [tex]Na_2SO_4[/tex], with this formula we can calculate the molar mass if we know the atomic mass of each atom on the formula (Na: 23 g/mol, S: 32 g/mol, O: 16 g/mol). We have to multiply each atomic mass by the amount of atoms in the formula, so:

[tex]molar~ mass~=~ (23*2)+(32*1)+(16*4)= ~ 142~ g/mol[/tex]

In other words:

[tex]1~mol~ Na_2SO_4=~142~g~ of~Na_2SO_4[/tex]

Now we can calculate the moles:

[tex]7.1~g~ of~Na_2SO_4\frac{1~mol~ Na_2SO_4}{142~g~ of~Na_2SO_4} [/tex]

[tex]0.05~mol~ Na_2SO_4 [/tex]

Finally, we can calculate the molarity:

[tex]M=\frac{0.05~mol~ Na_2SO_4 }{0.1~ L}[/tex]

[tex]M=0.5[/tex]

I hope it helps!

Answer:

0.50M of solution

Explanation:

Molarity is defined as the ratio between moles of solute (In this case, sodium sulfate, Na₂SO₄) per liter of solution.

Moles of 7.1g of Na₂SO₄ (Molar mass: 142g/mol) are:

7.1g Na₂SO₄ × (1mol / 142g) = 0.05 moles of Na₂SO₄.

In 100mL = 0.100L:

0.05 moles Na₂SO₄ / 0.100L = 0.50M of solution

Answer:sodium(a)

Explanation: