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Jlenok [28]
3 years ago
13

8 questions please please help i will make you barinliest 1. Photosynthesis is an important process that converts light energy i

nto ____________ energy.
A. Chemical
B.Nuclear
C.Water
D.Thermal

2. This cell would be found in which type of organism?

A.Animal
B.Bacteria
C.Virus
D.Plant

3. All Cells get their energy from glucose, but it must first be broken down in the mitochondria through a process called ______________________.
A. Photosynthesis
B. Cell Respiration
C.Cell Oxidation
D.ATP

4. Which of the following is an advantage for a single-celled organism like the Euglena?
A. It can become very large
B.It does not have to reproduce
C.It can reproduce quickly
D.It does not have to get energy

5.The items listed below were found in a science classroom. How would you describe these items?
A.Models
B.Experiments
C.Varaibles
C.Controls

6. Growth and repair in multicellular organisms are the result of
A.Excretion
B.Locomotion
C.Cell division
D.Decomposition

7. What is the result of cellular respiration?
A.Energy for cell processes is released.
B.Oxygen is released for photosynthesis.
C.Cells undergo decomposition
D.Nutrients are excreted to prevent the buildup of body fat.

8.Why is Photosynthesis important?

A.Makes organic molecules (glucose) out of inorganic materials (carbon dioxide and water).
B.It begins all food chains/webs. Thus all life is supported by this process.
C.It also makes oxygen gas which animals need.
D.All of the above

Chemistry
1 answer:
blagie [28]3 years ago
3 0

d.thermal

d.plant

a.photosynthesis

c.it can produce quickly

b.models

a.excretion

d

d

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When two or more substances blend but do not chemically combine it is a _____________.
Oksi-84 [34.3K]

Answer:

Mixture.

Explanation:

Hello,

In this case, when blending we are continuously sliding the substances until we obtain small particles that when do not chemically but physically combine we say they are forming a mixture. Nevertheless, when they chemically combine they form a chemical compound due to the formation of bonds between them.

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6 0
3 years ago
10 points<br><br> How many more oxygen atoms are in 3Mg3(PO4)2 than in 4Al2O3?
Feliz [49]

Answer:

12 more oxygen

Explanation:

An atom is the smallest particles that can take part in a chemical reaction

The given compounds are:

        3Mg₃(PO₄)₂  

 Number of oxygen atoms  = 3[2 x 4]  = 24 oxygen atoms

For;

             4Al₂O₃;

   Number of oxygen atoms  = 4 x 3  = 12 oxygen atoms

In   3Mg₃(PO₄)₂  , there are 24  - 12  = 12 more oxygen atoms than in  4Al₂O₃;

6 0
2 years ago
Read 2 more answers
Why does potassium permanganate need to be standardized right before a titration?.
Ierofanga [76]
To determine the strength of potassium permanganate with a standard solution of oxalic acid.
6 0
2 years ago
Which is NOT a correct assumption related to the Kinetic Theory?
cestrela7 [59]

Answer:

D

Explanation:

i took the test and got it right :)

7 0
2 years ago
What is the mass in grams of 1.00 x 10 24 atoms of Mn?
Alex17521 [72]
<h3>Answer:</h3>

91.2 g Mn

<h3>General Formulas and Concepts:</h3>

<u>Math</u>

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

<u>Chemistry</u>

<u>Atomic Structure</u>

  • Reading a Periodic Table
  • Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.

<u>Stoichiometry</u>

  • Using Dimensional Analysis
<h3>Explanation:</h3>

<u>Step 1: Define</u>

[Given] 1.00 × 10²⁴ atoms Mn

<u>Step 2: Identify Conversions</u>

Avogadro's Numer

[PT] Molar Mass of Mn - 54.94 g/mol

<u>Step 3: Convert</u>

  1. [DA] Set up:                                                                                                      \displaystyle 1.00 \cdot 10^{24} \ atoms \ Mn(\frac{1 \ mol \ Mn}{6.022 \cdot 10^{23} \ atoms \ Mn})(\frac{54.94 \ g \ Mn}{1 \ mol \ Mn})
  2. [DA] Multiply/Divide [Cancel out units]:                                                           \displaystyle 91.2321 \ g \ Mn

<u>Step 4: Check</u>

<em>Follow sig fig rules and round. We are given 3 sig figs.</em>

91.2321 g Mn ≈ 91.2 g Mn

7 0
3 years ago
Read 2 more answers
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