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Digiron [165]
3 years ago
9

Question 1 Multiple Choice Worth 2 points) (03.05 LC) Which statement is true?

Chemistry
1 answer:
Tasya [4]3 years ago
7 0

Answer:

I need more information. What is the question?

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A foundry produces circular utility access hatches (manhole covers). Currently, 120 covers are produced in a 10-hour shift. If l
SOVA2 [1]

Answer:

14.4 covers/hr.

Explanation:

First, we need to identify how much covers are produced in 1 hour, which will be total produced divided by the total time:

covers/hr = 120/10

covers/hr = 12

If the production will be increased by 20%, it means that new production will be the initial one plus 20% (0.20) of it:

12 + 0.20*12 =  14.4 covers/hr.

6 0
3 years ago
When a field is declared static, there will be:
Arturiano [62]

Answer:

B. only one copy of the field in memory

Explanation:

A static method is sort of a description of a class but is not part of the objects that it generates. Crucial: A program may perform a static method without constructing an object first! All other functions (those not static) only occur when they're member of an object. Thus it is necessary to build an object before they could be executed.

Therefore, when an static field is declared static, there will be:

B. only one copy of the field in memory

5 0
3 years ago
1826.5g of methanol (CH3OH), molar mass = 32.0 g/mol is added to 735 g of water, what is the molality of the methane 0.0348 m 1.
Snowcat [4.5K]

Answer:

Molality = 1.13 m

Explanation:

Molality is defined as the moles of the solute present in 1 kilogram of the solvent.

Given that:

Mass of CH_3OH = 26.5 g

Molar mass of CH_3OH = 32.04 g/mol

The formula for the calculation of moles is shown below:

moles = \frac{Mass\ taken}{Molar\ mass}

Thus,

Moles= \frac{26.5\ g}{32.04\ g/mol}

Moles\ of\ CH_3OH= 0.8271\ moles

Mass of water = 735 g = 0.735 kg ( 1 g = 0.001 kg )

So, molality is:

m=\frac {0.8271\ moles}{0.735\ kg}

<u>Molality = 1.13 m</u>

4 0
3 years ago
Some compounds are molecules like CO2 and some are polymers. What are polymers
Svetllana [295]

Polymers are the molecular structure in which the larger number of  small units are bond together.

Explanation:

The polymer are composed of hydrocarbon the components of carbon and hydrogen. The polymers are resistant to chemiclas, they act as both thermal and electrical insulators, they can be processed in various ways usually made up of petroleum. polymers are used to make items that have no alternatives from other material.

They have covalent bonds that holds the atoms in the polymer molecules together and secondary bonds that holds group of polymer chains together to form the polymeric material.

Diamond and graphite are polymers.

Carbon dioxide is a molecule with molecular formula CO2 and it is made up of two oxygen atoms and covalently bonded with one carbon atom.

3 0
3 years ago
How are the geographical equator, meteorological equator, and ITCZ related? What happens at the ITCZ?
scoray [572]
The ITCZ<span> or </span>Intertropical Convergence Zone<span> is a region on Earth that experiences ... The </span>ITCZ<span> lies near the </span>equator<span>, bringing precipitation caused by convection. ... </span>Related<span>. The Poetry of Sailors: What Are Doldrums and Trade Winds</span>
4 0
4 years ago
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