What actions can you take to reduce your impact on science?

Answer:

Good environmental and weather conditions.

Explanation:

The main influence for a horse that will become a racehorse or farm horse are  good environmental and weather conditions. It also needs good food and proper training to made a racehorse. High quality race of a horse always prefer for making a racehorse because it has higher agility, speed, and spirit as compared to horse belongs to ordinary race.

when hydrogen peroxide mixed with vinegar makes peracetic which is potentially toxic and irritate skin, eyes and respiratory system.

Answer:

a) 2.632 kg

b) 41.36 kg

Explanation:

Given data:

Mass of CO react = ?

Mass of Fe formed = 3.50 Kg (3.50 /1000 =3500 g)

Mass of CO₂ formed = ?

Solution:

Chemical equation;

Fe₂O₃ + 3CO     →   2Fe + 3CO₂

Number of moles of Fe:

Number of moles = mass/molar mass

Number of moles =  3500 g/55.85 g/mol

Number of moles = 62.67 mol

now we will compare the moles of iron with CO.

            Fe         :       CO

             2          :       3

          62.67     :        3/2×62.67 = 94 mol

Mass of CO:

Mass = number of moles × molar mass

Mass = 94 mol × 28 g/mol

Mass = 2632 g

In kilogram:

2632g × 1 Kg /1000 g

2.632 kg

Now we will compare the moles of Fe with CO₂

                 Fe         :           CO₂

                  2          :           3

               62.67     :        3/2×62.67 = 94 mol

Mass of CO₂:

Mass = number of moles × molar mass

Mass = 94 mol × 44 g/mol

Mass = 4136 g

In kilogram:

4136g × 1 Kg /1000 g

41.36 kg

The annswer are  -
1. the center of  an atom is a nucleus

2. protons and neutrons

3. electrons circle the nucleus and have a negative charge

4. the number of electrons

5. the number of protons

7. a molecule that is formed from two or more different types of atoms.

1. The nucleus is at the center of every atom and contains protons and neutrons, while electrons orbit around the nucleus.

2. Protons and neutrons make up the nucleus of an atom, providing mass and stability.

3. Electrons circle the nucleus in specific energy levels and have a negative charge, playing a role in chemical bonding and interactions.

4. The number of protons in an atom is equal to its atomic number and determines the element it belongs to.

5. The number of protons in an atom specifically determines the type of element it represents.

7. A compound is a molecule formed from different types of atoms, combining chemically to create a new substance.

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Explanation:  Walking for 30 minutes covers a distance of 2.0 to 2.5 km and burns about 125 calories

Answer:

4.8 hours

Explanation:

12÷2.5= 4.8 hours

Answer:

68133080.02 g

Explanation:

I believe that the question is to find the mass of air in the room and not the molar mass of air since the molar mass of air was already given in the question as 28.97 g/mol.

Now, if 1 mole of a gas occupies 22.4 L

x moles of air occupies 52,681,428.8 Liters

x = 1 * 52,681,428.8 /22.4

x = 2351849.5 moles of air

Now, number of moles = mass/ molar mass

but molar mass = 28.97 g/mol

2351849.5 = mass/28.97

mass = 2351849.5 * 28.97

mass = 68133080.02 g

Answer:

c)vibrating and in a regular arrangement

Explanation:

Copper is a chemical element represented by the symbol Cu and having atomic number 29. Copper is a transition metal which means its subshells are not completely filled and that is why they are vibrating in the room temperature. But copper is a solid at room temperature with regular arrangement of atoms.

Hence, the correct answer is "c)vibrating and in a regular arrangement".

Answer:

go with that persons

Explanation:

Answer:

When the denser tectonic plate dives beneath another plate it is due to the high energy by the Earth’s gravity that pushes into the mantle. Earth’s tides, which are caused by a gravitational tug of the Moon and the Sun, also put extra strain on geological faults. how to prepare for an earthquake

Explanation:

Answer: Silver Fluoride + Ferric Carbonate = Ferric Fluoride + Silver Carbonate

Reaction Type

Double Displacement (Metathesis)

Reactants

Silver Fluoride - AgF

Argentous Fluoride Silver(I) Fluoride

Molar Mass of AgF Bond Polarity of AgF Oxidation State of AgF

Ferric Carbonate - Fe2(CO3)3

Molar Mass of C3Fe2O9 Oxidation State of C3Fe2O9

Products

Ferric Fluoride - FeF3

Molar Mass of F3Fe Oxidation State of F3Fe

Silver Carbonate - Ag2CO3

Silver(I) Carbonate

Molar Mass of CAg2O3 Oxidation State of CAg2O3

Explanation: did u understand that? if not pls contact me in the contacts ty

the answer would be B

the particles wouldnt break, nor would the form new particles or just disappear

Answer:

The answer is A 83.33 g Ne

Explanation:

Used Avogadros Law

1.37 × 10⁻²¹ mol C

Math

Pre-Algebra

Order of Operations: BPEMDAS

Chemistry

Atomic Structure

Step 1: Define

825 atoms C

Step 2: Identify Conversions

Avogadro's Number

Step 3: Convert

[tex]\displaystyle 825 \ atoms \ C(\frac{1 \ mol \ C}{6.022 \cdot 10^{23} \ atoms \ C} )[/tex] = 1.36998 × 10⁻²¹ mol C

Step 4: Check

We are given 3 sig figs. Follow sig fig rules and round.

1.36998 × 10⁻²¹ mol C ≈ 1.37 × 10⁻²¹ mol C

Answer:

1- Using buses rather than opting for cars.

2- Regularly servicing your cars.

Explanation:

Answer: The molar enthalpy of formation for paraffin wax  is  -2460.5 kJ

Explanation:

The balanced chemical reaction is,

[tex]C_{25}H_{52}(g)+38O_2(g)\rightarrow 25CO_2(g)+26H_2O(g)[/tex]

The expression for enthalpy change is,

[tex]\Delta H=\sum [n\times \Delta H_f(product)]-\sum [n\times \Delta H_f(reactant)][/tex]

[tex]\Delta H=[(n_{CO_2}\times \Delta H_{CO_2})+(n_{H_2O}\times \Delta H_{H_2O})]-[(n_{O_2}\times \Delta H_{O_2})+(n_{C_{25}H_{52}}\times \Delta H_{C_{25}H_{52}})][/tex]

where,

n = number of moles

[tex]\Delta H_{O_2}=0[/tex] (as heat of formation of substances in their standard state is zero

Now put all the given values in this expression, we get

[tex]-14800=[(25\times -393.5)+(26\times -285.5)]-[(38\times 0)+(1\times \Delta H_{C_{25}H_{52}})][/tex]

[tex]\Delta H_{C_{25}H_{52}}=-2460.5kJ/mol[/tex]

Therefore, the molar enthalpy of formation for paraffin wax  is -2460.5 kJ

Answer:

196.96655

Explanation:

The answer is 196.96655. I assume you are converting between grams Gold and mole. The molecular formula for Gold is Au. The SI base unit for the amount of substance is the mole.

The quantity present in an atom or molecules of a given substance is called moles it is written as mol and is calculated with the help of molar mass and mass of the given substance.

0.507699 mol is present in the 100 gm of gold.

Given,

The formula for calculating moles is:

[tex]\rm Moles (n) = \dfrac{Mass}{Molar \;mass}[/tex]

Substituting values in the formula:

[tex]\begin{aligned}\rm n & = \dfrac{100}{196.967}\\\\ & = 0.507699 \;\rm mol\\\\& = 0.5077\;\rm mol\end{aligned}[/tex]

Therefore, 0.5077 mol is present in 100 gm of gold.

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Answer:

Mixing bleach and ammonia will create a toxic chloramine gas. Exposure to chloramine gas can cause irritation to your eyes, nose, throat, and lungs .

if you do accidentally mix bleach and ammonia, get out of the contaminated area and into fresh air immediately.

hope this help u ☆

Answer:

b it is easy its b

Explanation:

Answer:

B

Explanation:

Answer:

Explanation:

V/t

Answer:

(1) n-Octane

(2) 2-methyl-Heptane

(3) 3-methyl-Heptane

(4) 4-methyl-Heptane

(5) 2-ethyl-Hexane

(6) 3-ethyl- Hexane

Explanation:

We are given Octane which has the chemical formula as C8H18, and we need to find its three possible structures.

Isomerism is defined as the phenomenon in which a chemical compound will consist of the same chemical formula but it will have different orientation or bond arrangements. in simpler meaning isomers of a compound has same chemical formula but has different structures.

Some possible isomers of the compound Octane are given as in terms of their IUPAC names.

Chemical formula : C8H18

(1) n-Octane

(2) 2-methyl-Heptane

(3) 3-methyl-Heptane

(4) 4-methyl-Heptane

(5) 2-ethyl-Hexane

(6) 3-ethyl- Hexane

Answer:

c

Explanation:

trust

Transitions help the reader understand how the ideas in the argument are connected best explains why you should use transitions when writing an argument. Therefore, option C is correct.

They are cues that assist the reader in understanding your ideas. Transitional words or phrases help you move your thoughts from one sentence to the next and from one paragraph to the next.

Finally, transitional words smoothly connect sentences and paragraphs so that there are no abrupt jumps or breaks between ideas.

They make a direct link between ideas, sentences, and paragraphs. Specific words are used in effective transitions. Avoid using pronouns such as "this" to refer to an entire concept because it is not always clear who or what "this" refers to.

Transitions help the reader understand how the ideas in the argument are connected, which is why you should use them when writing an argument.

Thus, option C is correct.

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Answer:

C6H12

Explanation:

Molar mass of C =12.0 H=1.0

12x + 2(1x) = 84

x = 6

so it should be C6H12

The molecular formula of the compound will be C₇H₁₄.

The empirical formula of the compound gives the simplest ratio of the number of different elements present in a compound. The molecular formula of the compound provides the actual number of each element present in a compound. This formula is generally used and can be determined as a multiple of the empirical formula of a compound.

The empirical formula offers the ratio of the number of each atom in a given compound. The composition of a compound is directly determined by its empirical formula.

Given, the empirical formula of the compound is  CH₂.

The empirical formula mass of the compound = 12 + 2 = 14 g

The molar mass of the compound = 84 g

The multiple will be = 84/12 = 7

The molecular formula of the compound = (CH₂)₇ = C₇H₁₄

Therefore, the molecular formula of the compound is C₇H₁₄.

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Answer:

75 Newton

Explanation:

In order to find the force of the object, you must remember that the equation N = (mass x acceleration). Therefore meaning you would divide 300 kilograms, the mass, by 4 meters per second (squared), the acceleration.

Answer:

Mass

Explanation:

Answer:

zany

Explanation:

Answer:

a fresh start

Explanation:

Answer:

Bromine

Explanation:

They are in the same collumn and elements share the most properties with those in their family