Johnny was finished with his
experiment so he placed all of his
unused chemicals back into their
original containers. What should
Johnny have done instead?
The sono​

Answer:

Natural BGH and rBGH both increase the level of another hormone called insulin-like growth factor (IGF-1) in the cow.

Beef cattle are often given steroids to increase and speed growth. Common steroids include:

Major groups such as FDA and Food and Agricultural Organization state track level of hormones in food. They state that the levels of hormones in food are safe to eat. Not everyone agrees.

Explanation:

Hormones are present in all animal products. Some are natural, others may be added through supplements. Hormones and steroids are given to livestock. It can increase the number of dairy products and beef.

FDA establishes the acceptable safe limits for hormones in meat. A safe level for human consumption is a level of drug in the meat that would be expected to have no harmful effect in humans based on extensive scientific study and review.  

Answer:

[tex](5.391 * 10^{-7}) + (2.5531 * 10^{-6}) = 3.0922 * 10^{-6}[/tex]

Explanation:

Given

[tex](5.391 * 10^{-7}) + (2.5531 * 10^{-6})[/tex]

Required

Solve

[tex](5.391 * 10^{-7}) + (2.5531 * 10^{-6})[/tex]

Remove the brackets

[tex]5.391 * 10^{-7} + 2.5531 * 10^{-6}[/tex]

Express [tex]10^{-7}[/tex] as [tex]10^{-1-6}[/tex]

[tex]5.391 * 10^{-1-6} + 2.5531 * 10^{-6}[/tex]

Apply law of indices

[tex]5.391 * 10^{-1} * 10^{-6} + 2.5531 * 10^{-6}[/tex]

[tex]0.5391 * 10^{-6} + 2.5531 * 10^{-6}[/tex]

Factorize:

[tex](0.5391 + 2.5531)10^{-6}[/tex]

[tex](3.0922)10^{-6}[/tex]

Remove bracket

[tex]3.0922 * 10^{-6}[/tex]

Hence:

[tex](5.391 * 10^{-7}) + (2.5531 * 10^{-6}) = 3.0922 * 10^{-6}[/tex]

Explanation:

Hydrogen (H)

Helium (He)

Lithium (Li)

Beryllium (Be)

Boron (B)

Carbon (C)

Nitrogen (N)

Oxygen (O)

Fluorine (F)

Neon (Ne)

Sodium (Na)

Magnesium (Mg)

Aluminum (Al)

Silicon (Si)

Phosphorus (P)

Sulfur (S)

Chlorine (Cl)

Argon (Ar)

Potassium (K)

Calcium (Ca)

Hope this is correct and helpful

HAVE A GOOD DAY!

Answer:

See explanation

Explanation:

The ability of a hydride to act as a reducing agent depends on the electro negativity of the central atom in the complex hydride anion.

If we compare the electronegativities of Boron and Aluminum, Boron is more electronegative than aluminum. The more electronegative the central atom is, the lesser the electron density on the hydride and the lesser its ability to act as a reducing agent.

For the reason stated above, LiAlH4, having aluminium of low electro negativity as its central atom is a better reducing agent than NaBH4.

Answer:

It would change to a strong Red color

Explanation:

Cyanidin indicators turn strong red in acidic solutions and blue or green in a basic environment

Answer:

density is a PROPERTY that DESCRIBES the MASS of an object to its VOLUME.

Explanation:

Answer:

3 sig figs

Explanation:

one of the rules for sig figs is a when a whole number has zeros if they are sandwiched between whole number for ex. 34007 they would all be sig figs. hope this helps!

btw all the zeros behind the decimal are significant for ex. 0.4800

Answer:

you could make it 43.2 x 10^2

Explanation:

Answer:

The rate law may be determined only by experiment.

Explanation:

For a reaction, A + B ---> C, the rate law can only be determined from experimental data. Chemists determine the rate of reaction by carefully observing the changes in the concentration of species as the reaction progresses.

Hence, the rate law is not determined by inspection of the chemical reaction equation, it must be obtained from the experimental data, hence the answer given.

Answer:

[tex]$ CaCl_2$[/tex], CaS, [tex]$ Cr Cl_4$[/tex], [tex]$ CrS_2$[/tex]

Explanation:

The reaction can be done by adding the cations and the anions.

The binary compounds are always formed by the two different elements.

When one calcium ion, [tex]$ Ca ^{2+} $[/tex] combines with the two calcium ions, [tex]$ Cl^-$[/tex], they formed a binary compound of [tex]$ CaCl_2$[/tex].

When one [tex]$ Ca ^{2+} $[/tex] combines with one [tex]$S^{2-}$[/tex] ion, they formed CaS binary compound.

When one chromium ion [tex]$ Cr^{4+}$[/tex] combines with four ions of chlorine, [tex]$ Cl ^- $[/tex], the compound formed is [tex]$ Cr Cl_4$[/tex].

When 1 ion of [tex]$ Cr^{4+}$[/tex] combines with 2 ions of sulphur, [tex]$S^2$[/tex], the binary compound formed is [tex]$ CrS_2$[/tex].

Answer:

3.5 divided by 34 then divide again 100

Explanation:

math

Answer:

half water, half alcohol

Explanation:

Some inks are water soluble while some are alcohol soluble. Inks that do not dissolve in water usually dissolve in alcohol.

If inks are to be separated by chromatography, we have to make the mobile phase a mixture of alcohol and water in order for the dots to move the most.

Answer:

alcohol

Explanation:

Answer:

3 mL

Explanation:

1 cubic centimeter (cm³) is equal to 1 milliliter (mL).

We want to find out how many milliliters 3 cm³ is equal to.

Since 1 cm³ is equal to 1 mL, 3 cm³ is equal to 3 mL.

The quantity of 3.00 cm³ is the same as 3 milliliters (mL).

Answer:

27 or [tex]3.00^{3}[/tex] (they're the same)

Explanation:

Therefore, 27 cm is the same as 27 mL.

Explanation:

plant cells are rigid in shape

animal cells are flexible in shape

animal cell are flexible because of their movement around

plant cells are rigid cause they stay without walking around

Answer :

Part (e): [tex]C_2=\frac{C_1\times P_2}{P_1}[/tex]

Part (f): [tex]P_2=\frac{C_2\times P_1}{C_1}[/tex]

Part (g): [tex]\text{Volume}=\frac{\text{Mass}}{\text{Density}}[/tex]

Explanation :

Part (e):

The given expression is:

[tex]\frac{C_1}{P_1}=\frac{C_2}{P_2}[/tex]

Now rearranging the the terms, we get:

[tex]C_2=\frac{C_1\times P_2}{P_1}[/tex]

Part (f):

The given expression is:

[tex]\frac{C_1}{P_1}=\frac{C_2}{P_2}[/tex]

Now rearranging the the terms, we get:

[tex]P_2=\frac{C_2\times P_1}{C_1}[/tex]

Part (g):

The given expression is:

[tex]\text{Density}=\frac{\text{Mass}}{\text{Volume}}[/tex]

Now rearranging the the terms, we get:

[tex]\text{Volume}=\frac{\text{Mass}}{\text{Density}}[/tex]

Answer:

B-7

Explanation:

13-6=7

Answer : The kinetic energy will be 24 J.

Explanation : Given,

Mass of marble = 3 kg

Velocity of a marble = 4 m/s

Formula used to calculate the kinetic energy is:

[tex]K.E=\frac{mv^2}{2}[/tex]

where,

K.E = kinetic energy

m = mass

v = velocity

Now putting all the given values in this formula, we get:

[tex]K.E=\frac{3kg\times (4m/s)^2}{2}[/tex]

[tex]K.E=24kg.m^2/s^2=24J[/tex]            [tex](1J=1kg.m^2/s^2)[/tex]

Therefore, the kinetic energy will be 24 J.

Answer:

[See Below]

Explanation:

140 ml.

Answer:

Explanation:

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

From the question

mass = 498 g

volume = 11.9 mL

Substitute the values into the above formula and solve for the Density

That's

We have the final answer as

Hope this helps you

Answer:

to avoid iodine vapor from escaping.

Explanation:

This question is all about an experimental work on the determination of the distribution of iodine between waters and cyclohexane. To understand this question one has to understand the topic "Equilibrium" very well.

One important thing that must be noted in this question is for us to remember that water and cyclohexane are two immiscible liquids. So, when Iodine is added to the two solvents, the iodine dissolves in both water and cyclohexane to certain rate ands then to an equilibrium which is;

Kd = I₂[Cyclohexane]/ I₂[water]. ----------------------------------------[**].

There is a release of I⁻¹ From the added potassium iodide which helps in making sure that the iodine vapor does not escape. Thus, forming a tri-iodide ion.

Answer:

its also a mixture of gold.

Explanation:

Answer:

SO3(g) + H2O(l) ------> H2SO4(aq)

Explanation:

'Redox' is a term used to describe reduction and oxidation since the both are complementary processes, one can not occur without the other.

A redox reaction is one in which there is a change in the oxidation number of the reactants from left to right of the reaction equation.

If we looks at the reaction;

SO3(g) + H2O(l) ------> H2SO4(aq)

There was no change in the oxidation numbers of species from left to right of the reaction equation. For instance, the oxidation state of sulphur is +6 on both sides of the reaction equation hence it is not a redox reaction.

Answer:

3-methylthiophene > thiophene > benzene > 2-methylfuran

Explanation:

Primarily, five membered heterocyclic aromatic rings undergo nitration at carbon-2. This is because, nitration at carbon-2 leads to the formation of three resonance structures while attack at carbon-3 yields only two resonance structures, hence it is less stabilized.

The presence of a methyl group which donates electrons promotes the stabilization of the cation formed in the nitration of 3-methylthiophene.

2-methylfuran is the least reactive towards nitration because the 2-position has been blocked by a methyl group.

Answer:

Chemistry is used almost everywhere you go. from the car you use to get to work (gasoline burning) to the nuclear reactors that power many homes ( uranium becoming unstable to product electricity.

It might affect the health of consumer of that meat. Hope it helps

Answer:

Explanation:

Iron(III) oxide gets mixed with elemental carbon and heated to make elemental iron and carbon dioxide.

2Fe₂O₃   +    3C    =    4 Fe   +    3 CO₂

2 x 160       3 x 12       4 x 56

320 gram of iron ( iii ) oxide requires 36 g of carbon for reduction

1 kg of iron will require 36 / 320 g of carbon

carbon required = 36 / 320 g

= .1125 g

= .113 g rounding off to 3 significant fig .

b )

320 gram of iron ( iii ) oxide produces  224  g of iron  after  reduction

1 g of iron will produce 224 / 320 g of iron

iron produced = 224 / 320 g

= 0.700 g .

Step 7- Communicate. Present/share your results. Replicate.

Step 1- Question.

Step 2-Research.

Step 3-Hypothesis.

Step 4-Experiment.

Step 5-Observations.

Step 6-Results/Conclusion.

object  A has a larger volume than object B

Answer:

68.97g of milk must be added

Explanation:

To solve this problem we need to use the equation:

Q = C*m*ΔT -Coffee cup calorimeter equation-

This equation relates mass and change in temperature with heat of solution, Q.

The energy that decreases in the milk is the same that increases in the milk. That is:

Q(milk) = Q(tea)

Using the equation:

4.184J/molK* Mass milk * (65.0°C - 7.00°C) = 4.184J /molK * 200g (Tea) * (85.0°C - 65.0°C)

Mass milk * 58.0°C = 200g * 20.0°C

Mass milk = 4000g°C / 58.0°C

Mass milk =

Given :

Number of heart beat in 1  minute , n = 70 .

The individual lives for 85 years .

To Find :

The number of heartbeats in their lifespan .

Solution :

Now , number of minutes in one hour is 60 .

One day contains 24 hours .

Therefore , minutes in one whole day :

[tex]24\times 60 = 1440\ sec[/tex]

Now , 1 year contains 365 days .

( Note : We are not considering any leap years )

Minutes in one year are :

[tex]365\times 1440=525600=5.25\times 10^5\ sec[/tex]

So ,total minutes in 85 years is :

[tex]=5.25\times 10^5\times 85\\\\=4.46\times 10^7\ sec[/tex]

Hence , this is the required solution .