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uranmaximum [27]
3 years ago
15

Identify at least three control variables that could be used with this investigation: What temperature allows for bacterial grow

th to occur quickly?
Chemistry
2 answers:
Olenka [21]3 years ago
7 0

Answer:

whats the expirement

Explanation:

Over [174]3 years ago
6 0

Answer:

Time allowed for incubation, size of the dish, the amount of light, amount of agar, the type of agar…etc

Explanation:

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one million atoms of a particular element have a mass of 1.99 ×10^-17 grams. how many moles of this element are there?
Marianna [84]
<span>(1.99x10^-17) x 1000000
= 1.99x10^-11 (1.99x10^-11) / (6.023x10^23)
 = 3.304001328x10^-35
hope this helps</span>
4 0
3 years ago
List 2 types of bacteria
Verizon [17]

"Spherical: Bacteria shaped like a ball are called cocci, and a single bacterium is a coccus. Examples include the streptococcus group, responsible for “strep throat.”

Rod-shaped: These are known as bacilli (singular bacillus). ...

Spiral: These are known as spirilla (singular spirillus). " - Medical News Today

8 0
3 years ago
Read 2 more answers
In order for nuclear fusion to occur, the core of the sun must be hot enough to overcome the _________ of the nuclei. select one
andreyandreev [35.5K]
The answer is option a, that is " <span>electromagnetic repulsions</span><span>".
The sun generates energy by nuclear fusion, and converts a part of its mass into energy and nuclear fusion is the source of all energy that is released by the sun. The two things which are required for the process of nuclear fusion are high temperature and the high densities.

</span>
7 0
4 years ago
A 20 L cylinder of gas at 5.6 atm pressure at 35 degrees Celsius is heated to 95 degree Celsius and compared to 23 atm. What is
ella [17]

Answer:

5.8 L  

Step-by-step explanation:

This looks like a case where we can use the <em>Combined Gas Law</em> to calculate the temperature.

p₁V₁/T₁ = p₂V₂/T₂               Multiply both sides by T₂

p₁V₁T₂/T₁ = p₂V₂                Divide each side by V₂

V₂ = V₁ × p₁/p₂ × T₂/T₁  

=====

<em>Data</em>:

p₁ = 5.6 atm

V₁ = 20 L

T₁ = 35 °C = 308.15 K

p₂ = 23 atm

V₂ = ?

T₂ = 95 °C = 368.15 K

=====

<em>Calculation: </em>

V₂ = 20 × 5.6/23 × 368.15/308.15  

V₂ = 20 × 0.243 × 1.19  

V₂ = 5.8 L  

6 0
3 years ago
How many atoms are present in 3 moles of chromium?
Murljashka [212]

Answer:

1.80 x 10^24 atoms

Explanation:

3moles × 6.022×10^23 atoms/mole

3 0
3 years ago
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