Chemistry Middle School

An element that is an invisible gas is

a gold
b copper
c iron
d oxygen

Answers

Answer 1
The answer to your question is oxygen
Answer 2
The answer is D. Oxygen.

Related Questions

PLZ ANSWER FOR BRAINLIEST

Answers

Answer:

C

Explanation:

The ozone layer absorbs ultraviolet rays from the sun.

It’s c, I’m sure of it

How are electromagnets temporary?
A.) They are only magnetic when an electric current runs through them.
B.) They are only magnetic when a gravitational wave runs through them.
C.) They are only magnetic when near a lodestone.
D.) They are only magnetic for two weeks.

Answers

Such magnets are called temporary magnets. An electromagnet is a temporary magnet. It is made by winding a coil of insulated wire round a soft iron core. When a current is passed through the coil, the magnetic field produced by the current magnetises the soft iron core. The soft iron core loses all the magnetism when the current is switched off.

So A

The answer (to this question) is A

How many atoms of Br are there?How many atoms of Br are there?

Answers

Answer:

8

Explanation:

There are 8 atoms of Br because there are two molecules of 4 atoms of Br. 4 x 2 = 8.

Answer: 1 mol Br contains 6.022×1023Br atoms;its mass is 79.90 g.

Explanation:

: I mole or bromine refers to 6×10^23 molecules of bromine. But 1 molecule of bromine has 2 atoms. Hence the atom count will be exactly twice.

The Sun does not heat Earth evenly. Areas at different latitudes receive a varying amount of direct sunlight.

Would a city located at 70°N latitude have a warmer or colder climate? Why?

Answers

Yeah he has a point where the sunlight hits us gonna be warm but bito always the sun may hit but it could be cold or the sun may hit and it could be warm or hot

Giving brainliest 4 best answer :> ~~

Answers

Answer:

there are blanks in the picture. what kind of winds are being asked about?

How do air masses flow?


from regions of low pressure to high pressure

it depends on the time of the day

from regions of high pressure to low pressure

whichever way the wind blows

Answers

How do air masses flow?

from regions of high pressure to low pressure

.

In general, cold air masses tend to flow toward the equator and warm air masses tend to flow toward the poles.

What is the definition of a Macronutrient?

Answers

a chemical element (e.g., potassium, magnesium, calcium) required in large amounts for plant growth and development.
macronutrients are the nutritive components of food that the body needs for energy and to maintain the body's structure and systems

Question NO LINKS!
Which air mass brings high temperatures and precipitation to Gwinnett County in late spring?

Answers

Answer:

Climate of Georgia. Maritime tropical air masses dominate the climate in summer, but in other seasons continental polar air masses are not uncommon.

Explanation:

Please help me with this science question

Answers

Answer:

TRUE

Explanation:

The youngest rocks on the ocean floor are located at the oceanic ridge, an underwater mountain range formed from the spreading of tectonic plates

they are found at the oceanic ridge
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