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9966 [12]
3 years ago
11

What characteristic do all living things share?

Chemistry
2 answers:
BARSIC [14]3 years ago
8 0

All organisms share certain characteristics of life, for example, all living things are made of cells and they must reproduce to make the next generation. Without these characteristics, there is no life.

I hope i helped??

kupik [55]3 years ago
6 0

Answer:

eyes and mouth

Explanation:

smell,touch, taste,see

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‼️ i really need help. if anyone can do 10 pages of a grade 11 chemistry packet (multiple choice) let me know. i can pay money
Alja [10]

Answer:

mmmmmmmmmmmmmmmmmm

Explanation:

6 0
2 years ago
Compare the advantages and disadvantages of using nuclear energy.
Brums [2.3K]
Advantages<span> of </span>nuclear power- <span>The generation of electricity </span>through nuclear energy<span> reduces the amount of </span>energy generated from fossil fuels, <span>Less </span>use of fossil fuels means lowering greenhouse gas emissions. <span>Another </span>advantage<span> is the required amount of fuel: less fuel offers more </span><span>energy

Disadvantages- </span><span>Like fossil fuels, </span>nuclear<span> fuels are non-renewable </span>energy <span>resources. And if there is an accident, large amounts of radioactive material could be released into the environment. In addition, </span>nuclear<span> waste remains radioactive and is hazardous to health for thousands of years.</span>
8 0
3 years ago
Read 2 more answers
Objects that can bew seen only under magnification
timofeeve [1]
The answer is (D) microscopic. You can remember this, because the name is very close to "microscope," an instrument used to greatly magnify and observe tiny organisms and objects.
4 0
3 years ago
Review energy changes by identifying the correct statements about each reaction.
Grace [21]

Answer: The reaction is exothermic

The \Delta H value is negative.

Heat is a product.

Explanation:

2H_2(g)+O_2(g)\rightarrow 2H_2O(l)+136.6kcal

Endothermic reactions are defined as the reactions in which energy of the product is greater than the energy of the reactants. The total energy is absorbed in the form of heat and \Delta H for the reaction comes out to be positive.

Exothermic reactions are defined as the reactions in which energy of the product is lesser than the energy of the reactants. The total energy is released in the form of heat and \Delta H for the reaction comes out to be negative.

The substances which are written on the left side of the arrow are reactants and the substances which are written on the right side of the arrow are products. Thus heat is a product.

5 0
3 years ago
An oxide of aluminum contains 0.545 g of Al and 0.485 g of O. Find the empirical formula
uysha [10]

Answer:

The answer is: <u>Al2O3</u>

Explanation:

The data they give us is:

  • 0.545 gr Al
  • 0.485 gr O.

To find the empirical formula without knowing the grams of the compound, we find it per mole:

  • 0.545 g Al * 1 mol Al / 27 g Al = 0.02 mol Al
  • 0.485 g O * 1 mol O / 16 g O = 0.03 mol O

Then we must divide the results obtained by the lowest result, which in this case is 0.02:

  • 0.02 mol Al / 0.02 = 1  Al
  • 0.03 mol O / 0.02 = 1.5  O

Since both numbers have to give an integer, multiply by 2 until both remain integers:

  • 1Al * 2 = 2Al
  • 1.5O * 2 = 3O

Now the answer is given correctly:

  • Al2O3

8 0
2 years ago
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