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2 years ago

9

What are bacteria? Chapter 7 lesson 2 AYU

2 answers:

Maru [420]2 years ago

7 0

Answer:

a group of unicellular microorganisms

Paha777 [63]2 years ago

4 0

Answer:

bacteria are a type of biological cell,they constitute a large domain of prokaryotic microorganisms,single celled. The cells are all prokaryotic . This means they do not have a nucleus or any other structures which are surrounded by membranes . ... Bacteria also have small, closed-circles of DNA called plasmids present in their cytoplasm

Explanation:

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A substance is matter that has a definite composition.<br> TRUE or FALSE?

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Answer: false

Explanation:

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A tank with volume of 2.4 cu ft is filled with Methane to a pressure of 1500 psia at 104 degrees F. Determine the molecular weig

Soloha48 [4]

Explanation:

It is known that equation for ideal gas is as follows.

PV = nRT

The given data is as follows.

Pressure, P = 1500 psia, Temperature, T = $104^{o}F$ = 104 + 460 = 564 R

Volume, V = 2.4 cubic ft, R = 10.73 $psia ft^{3}/lb mol R$

Also, we know that number of moles is equal to mass divided by molar mass of the gas.

n = $\frac{mass}{\text{molar mass}}$

m = $n \times W$

= $0.594 \times 16.04$

= 9.54 lb

Hence, molecular weight of the gas is 9.54 lb.

We will calculate the density as follows.

d = $\frac{PM}{RT}$

= $\frac{1500 \times 16.04}{10.73 \times 564}$

= 3.975 $lb/ft^{3}$

Now, calculate the specific gravity of the gas as follows.

Specific gravity relative to air = $\frac{\text{density of methane}}{\text{density of air}}$

= $\frac{3.975 lb/ft^{3}}{0.0765 lb/ft^{3}}$

= 51.96

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3 years ago

Calculate ΔGrxn for this equation, rounding your answer to the nearest whole number.

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Is epsom salt a pure substance or mixture

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Epsom salt is a compound.

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N each reaction box, place the best reagent or reactant from the list below. reagents may be used more than once or not at all.

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Explanation:

See attachment for the drawing of the intermediate products b and c (both are neutral; omit byproducts).

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