Jello has a density of 1.14 g/mL. A box of Jello makes 475 mL of Jello and has 13 g of sugar. Determine the % m/m of sugar in the Jello. (Hint: d=m/v) ​

Answers

Answer 1
Answer:

Answer:

2.34 %

Explanation:

Since the density of the Jello, ρ = 1.14 g/mL and ρ = m/v where m = mass of jello and v = volume of jello = 475 mL.

So, m = ρv

substituting the values of the variables into the equation, we have

m = ρv

m = 1.14 g/mL × 475 mL = 541.5 g

Since we have 13 g of sugar in the jello, the total mass present is 13 g + 541.5 g = 554.5 g

So, the percentage by mass of sugar present % m/m = mass of sugar present/total mass × 100 %

= 13 g/554.5 g × 100 %

= 0.0234 × 100 %

= 2.34 %

So, the percentage by mass of sugar present % m/m = 2.34 %


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What has the same number of valence electrons in the outermost shell?“These ____ have the same number of valence electrons in their outermost shell.”


Word bank-
Groups
Families
Periods
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Answers

Answer:

Groups

Explanation:

Elements with the same number of valence electrons are found in the same column(group) of the Periodic Table.

Dinitrogen trisulfide symbol

Answers

Dinitrogen trisulfide symbol:N2S3

Final answer:

The symbol for the compound dinitrogen trisulfide is N2S3. It is derived from the number of nitrogen and sulfur atoms present in the compound.

Explanation:

The chemical compound dinitrogen trisulfide is composed of two elements: nitrogen (N) and sulfur (S). When we name the compound according to IUPAC nomenclature rules, we consider the number of each type of atom present. Dinitrogen means there are two nitrogen atoms, represented by the subscript 2, and trisulfide implies that there are three sulfur atoms, signified by the subscript 3. Hence, the symbol or chemical formula for dinitrogen trisulfide is N2S3.

Learn more about Dinitrogen Trisulfide here:

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the radioactive particle that is positively charged and has two protons and two neutrons is the _____. alpha particle beta particle gamma ray neutron

Answers

Answer: The correct answer is alpha particle.

Explanation:

There are 3 radioactive particles which are released in radioactive decay process:

1. Alpha particle: This particle is released when a nuclei undergoes alpha decay. The particle released has a mass of 4 units and has a charge of 2 units. The particle is positively charged.

_Z^A\textrm{X}\rightarrow _(Z-2)^(A-4)+_2^4\alpha

2. Beta-particle: This particle is released when a nuclei undergoes beta decay process. The particle released has a mass of 0 units and has a charge of (-1) units.

_Z^A\textrm{X}\rightarrow _(Z+1)^A\textrm{Y}+_(-1)^0\beta

3. Gamma radiations: These radiations are released when an unstable nuclei undergoes gamma ray emission and gives excess energy by a spontaneous electromagnetic process. The radiations does not carry any charge and has no mass.

_Z^A\textrm{X}^*\rightarrow _Z^A\textrm{X}+_0^0\gamma

Hence, the radioactive particle that is charged charged and has two protons and two neutrons is the alpha particle.

it is the alpha particle

Green plants need light in order to survive Structures in the leaves absorb light, which in turn, helps plants make theirown tood
Under which color of light will plants be least likely to make food?
red
blue
orange
green

Answers

Answer:

The color of light in which plants are less likely to produce food is green.

Explanation:

Photosynthesis is the process by which plants take advantage of sunlight to convert it into chemical energy, necessary to manufacture their nutrients, their growth and development.

Plants do not absorb all the colors of the light spectrum, since due to their pigments they absorb colors with specific wavelengths. Green plants do not absorb the color green, but reflect it —due to the chlorophyll pigment— which gives the green color to those leaves.

For this reason, the light that plants take least advantage of to produce food is green light.

Other options:

    The colors blue, orange and red can be absorbed by the plant, to a lesser or greater degree.

Answer:

it would be green

Explanation:

What are atoms that have gained or lost electrons?A. ions
B. isotopes
C. elements
D. molecules

Answers

They are called... ions.
Ions have negative charges. They also contain more protons than electrons.
I hope this helps!

Answer:

IONS

Explanation:

When a substance heats up, and the particles gain thermal energy and spread apart, what do scientists say about that substance? a) It becomes more dense. b) It undergoes a phase change. c) It expands. d) It contracts.

Answers