Α. Helium (He)
В. Beryllium (Be)
C. Phosphorus (P)
D. Sulfur (S)

Answer: i would say producer

Explanation:

Answer:

a

Explanation:

Answer:

HOPE IT HELPS THANK ME LATER.

Answer:

Fe ^2+ + MnO - 4 → Fe 3+ + Mn 2+

Explanation:

Explanation:

You follow a series of steps in order:

Identify the oxidation number of every atom.

Determine the change in oxidation number for each atom that changes.

Make the total increase in oxidation number equal to the total decrease in oxidation number.

Place these numbers as coefficients in front of the formulas containing those atoms.

Balance all remaining atoms other than  

O

and  

H

.

Balance  

O

.

Balance  

H

.

Check that atoms and charges balance.

Here's how it works. Your unbalanced equation is

Answer:gold iron and uranium

Explanation:

Answer:

iron, density: 7.8 g/cm³

aluminum, density: 2.7 g/cm³

silver, density: 10.5 g/cm³

lead, density: 11.3 g/cm³

Explanation:

other ones wrong

Answer:

we cant draw on drainly and we cant upload a pic cause we cant share links on here

Explanation:

Balanced equation

Mg₃(PO₄)₂ + 2Al(NO₃)₃ → 3Mg(NO₃)₂ + 2AlPO₄

Given

Reaction

Mg3(PO4)2 + Al(NO3)3 → Mg(NO3)2 + AlPO4

Required

Balanced equation

Solution

Give a coefficient :

Mg₃(PO₄)₂ + aAl(NO₃)₃ → bMg(NO₃)₂ + cAlPO₄

Make an equation :

Mg, left = 3, right=b⇒b=3

P, left=2, right=c⇒c=2

Al, left=a, right=c⇒a=c⇒a=2

The reaction becomes :

Mg₃(PO₄)₂ + 2Al(NO₃)₃ → 3Mg(NO₃)₂ + 2AlPO₄

Answer:

Sugar

Explanation:

The carbon is in form of sugar prior to the lion eating the giraffe. This form of carbon in the giraffe serves as a rich source of nutrient for the lion.

The carbon enters living organisms as carbon dioxide. As it enters, it is converted by plants into glucose, a from of sugar.

When giraffes eats the glucose in plant, it is stored in them and used for the liberation of energy

This same stored chemical energy in the giraffe is taken up by the lion.

Answer:

In multicellular organisms groups of cells that work together are called tissues.

Answer:

Lichens love clean air

Explanation:

Lichens love clean air too - in fact, their sensitivity to air pollution means they make great air quality indicators. Like small signposts, these curious organisms can tell us a lot about the air we are breathing.

Answer:

oh thats a bomb song tho i love

Answer: Christina your killing me pls come back i screwed everything up with everyone pls

Explanation: pls

Answer:

Not sure about this one, sorry

Explanation:

Answer:

1. 48 2. uhhh molar mass of gold/avogadro's number = 4 moles so guess

Explanation:

Answer:

1. 48 2. uhhh molar mass of gold/avogadro's number = 4 moles so guess

Explanation:

Answer:

Acid rain.

Explanation:

Answer:

Formation of sedimentary rocks

Explanation:

I believe this is correct, May I get a brainliest???

Answer: 3.45 L carbon dioxide are produced

Explanation:

According to avogadro's law, 1 mole of every substance occupies 22.4 L at STP and contains avogadro's number [tex]6.023\times 10^{23}[/tex] of particles.

To calculate the moles, we use the equation:

[tex]\text{Number of moles}=\frac{\text{Given volume}}{\text {Molar volume}}=\frac{5.75L}{22.4L}=0.257moles[/tex]

[tex]C_3H_8+5O_2(g)\rightarrow 3CO_2+4H_2O[/tex]  

According to stoichiometry :

5 moles of [tex]O_2[/tex] produce =  3 moles of [tex]CO_2[/tex]

Thus 0.257 moles of [tex]O_2[/tex] will produce=[tex]\frac{3}{5}\times 0.257=0.154moles[/tex]  of [tex]CO_2[/tex]  

Volume of [tex]CO_2=moles\times {\text {Molar volume}}=0.154moles\times 22.4L/mol=3.45[/tex]

Thus 3.45 L carbon dioxide are produced

Answer: The blood circulatory system (cardiovascular system) delivers nutrients and oxygen to all cells in the body.

Explanation:

Answer:

6.02 x 10²³ atoms

Explanation:

The number of moles present in 1 mole of zinc will be 6.02 x 10²³ atoms. This is because a mole of any substance contains the Avogadro's number of particles which is 6.02 x 10²³ atoms.

A mole is simple a convenient way of estimating the number particles within a substance.

So every 1 mole of  a substance contains the same number atom in there.

For the give zinc, since it is 1 mole, it will contain 6.02 x 10²³ atoms

they've changed the answer, but 6.02 x 1023 is still right. the new answer is just 6 x 1023.(6.02 rounded to the nearest integer)

Answer:

true

Explanation:

because of gravity hahah

Answer:

I think it is agitation

Explanation:

Answer:

0.016M is the initial concentration of NaOH in the reaction mixture

Explanation:

The NaOH is diluted from 9.3mL to 9.3mL + 8.5mL = 17.8mL. That is a dilution of:

17.8mL / 9.3mL = 1.914 times

As the initial concentration of the NaOH solution is 0.031M and is diluted 1.914 times, the final concentration of the NaOH solution is:

0.031M / 1.914 =

0.016M is the initial concentration of NaOH in the reaction mixture

976,563 is the answer I got to your question

Answer:

976 563

Explanation:

Hope you get it right thou

Answer:

Explanation:

The answer depends, if they are at opposite poles they will attract but if they are at the same pole they will repel

416 g MgCl₂

Math

Pre-Algebra

Order of Operations: BPEMDAS

Chemistry

Atomic Structure

Stoichiometry

Step 1: Define

[RxN - Balanced]   MgCl₂ + 2LiOH → Mg(OH)₂ + 2LiCl

[Given]   255 g Mg(OH)₂

[Solve]   x g MgCl₂

Step 2: Identify Conversions

[RxN] 1 mol MgCl₂ → 1 mol Mg(OH)₂

[PT] Molar Mass of Mg - 24.31 g/mol

[PT] Molar Mass of O - 16.00 g/mol

[PT] Molar Mass of H - 1.01 g/mol

[PT] Molar Mass of Cl - 35.45 g/mol

Molar Mass of Mg(OH)₂- 24.31 + 2(16.00) + 2(1.01) = 58.33 g/mol

Molar Mass of MgCl₂ - 24.31 + 2(35.45) = 95.21 g/mol

Step 3: Stoichiometry

Step 4: Check

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

416.227 g MgCl₂ ≈ 416 g MgCl₂