2 years ago

What is the atomic charge of boron

1 answer:

3 0

Boron can be combined both with metallic elements as nonmetallic to Covalent compounds forming, since in no case give rise to Ionic States, cations (positively charged ions) or anions (negatively charged ions).

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What is name of: <br>1.Ca(H2PO4)2, <br>2.Fe(HSO4)2, <br>3.(CaOH)2SO4<br>4.Al(OH)Cl2

Sever21 [200]

1. Calcium hydrogen phosphate

2. Iron(II) Hydrogen Sulfate

3. Calcium hydroxide

4. Aluminum chloride hydroxide

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2 years ago

a sample that has a half life of 45 years take ____ for the count rate to drop from 600 cpm to 150 cpm

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Answer:

90yrs

Explanation:

Half life is the time taken for half of an original radioactive material to decay by half.

For the sample;

Half - life = 45yrs

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0yrs 600cpm

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2 years ago

What is the density of ethane gas, C2H6 at STP

yawa3891 [41]

Answer:

The answer is that ethane gas has a density of 1.34 g/L at STP

Explanation:

Ethane weighs 0.0013562 gram per cubic centimeter or 1.3562 kilogram per cubic meter, i.e. density of ethane is equal to 1.3562 kg/m³; at 0°C (32°F or 273.15K) at standard atmospheric pressure.

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2 years ago

This drawing shows the internal anatomy of a sponge.

Evgen [1.6K]

Answer:

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Explanation:

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2 years ago

For which process would the pictured cell be used?

DaniilM [7]

Answer:

Coating a material with metal

(SInce the glasses will be coated with gold.)

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1 year ago