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N76 [4]
2 years ago
14

3. Bacteria communicate with each other through electronic pulses. O True O False

Chemistry
2 answers:
Colt1911 [192]2 years ago
8 0

Answer:

All in All, All in All.

Explanation:

lina2011 [118]2 years ago
4 0
Answer: False

Explanation:

Abstract. Bacteria communicate with one another using chemical signal molecules. This process, termed quorum sensing, allows bacteria to monitor the environment for other bacteria and to alter behavior on a population-wide scale in response to changes in the number and/or species present in a community.
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2. Which organelle holds genetic information in the molecule DNA? A. vacuole B. cell membrane C. chromosome D. Golgi body
malfutka [58]
B.cell membrane is the answer
7 0
3 years ago
Read 2 more answers
When compounds are formed, will its heat give off?​
mariarad [96]

Answer: It depends on the type of chemical reaction that formed the compound.

Explanation:

Exothermic reactions give off the heat to the reaction environment, so the compound feels hotter.

Endothermic reactions absorb the heat from the reaction environment and the compound feels cooler.

7 0
3 years ago
In a compound, chemical energy is _______________ when bonds break.
Romashka-Z-Leto [24]

Answer:

In a compound, chemical energy is _____required__________ when bonds break.

6 0
3 years ago
Explain intermolecular forces cause water molecules to stick to a material like a glass pitcher​
natulia [17]

Answer:

Cohesive forces cause the water molecules to stick together with a lot of elasticity, allowing the water to function very much like a rubber into a material like a glass pitcher.

6 0
3 years ago
If 5 mol of oxygen gas effuses through an opening in 10 seconds, how long will it take for the same amount of hydrogen gas to ef
andrezito [222]

Answer:

B

Explanation:

Recall the law of effusion:

\displaystyle \frac{r_1}{r_2} = \sqrt{ \frac{\mathcal{M}_2}{\mathcal{M}_1} }

Because 5 mol of oxygen was effused in 10 seconds, the rate is 0.5 mol/s.

Let the rate of oxygen be <em>r</em>₁ and the rate of hydrogen be <em>r</em>₂.

The molecular weight of oxygen gas is 32.00 g/mol and the molecular weight of hydrogen gas is 2.02 g/mol.

Substitute and solve for <em>r</em>₂:

\displaystyle \begin{aligned} \frac{(0.5\text{ mol/s})}{r_2} & = \sqrt{\frac{(2.02\text{ g/mol})}{(32.00\text{ g/mol})}} \\ \\  r_2 & = \frac{0.5\text{ mol/s}}{\sqrt{\dfrac{(2.02\text{ g/mol})}{(32.00\text{ g/mol})}}} \\ \\ & = 2.0\text{ mol/s}\end{aligned}

Because there are 5 moles of hydrogen gas:

\displaystyle 5.0\text{ mol} \cdot \frac{1\text{ s}}{2.0\text{ mol}} = 2.5\text{ s}

In conclusion, it will take about 2.5 seconds for the hydrogen gas to effuse.

Check: Because hydrogen gas is lighter than oxygen gas, we expect that hydrogen gas will effuse quicker than oxygen gas.

6 0
2 years ago
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