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lutik1710 [3]
4 years ago
9

Unit 1B Portfolio item for CA.

Chemistry
1 answer:
Mila [183]4 years ago
3 0
<span>No. Radiocarbon dating has an effective range to only about 62,000 years ago (and the further back you go, the higher your error will be). The fossils in the shale are much older than that, so you can be sure that the leaves are not recent enough to be dated that way.</span>
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ASAP PLLEEASE HURYYYYYYYYYYRRRRRRRRRRRRYY (NO FILES FOR ME NEEDING TO DOWNLAOD PLEASE!)
pickupchik [31]

Answer:

1.Fill in the blank with the correct term to make the statement true.

During the (night)

at the beach, the land cools down

(slower)

than the

(ocean).

Because of this, the air over the land is

(Warmer) than the air over the ocean. The

(More)

dense air rises over the ocean and the cooler,

(More)

dense air blows in from over the land creating a

(sea)

breeze.

2.Which statement is true about winds?

Winds always blow from low to high pressure.

true

Winds always blow from water to land.

false

Winds always blow from land to water.

false

3. Winds always blow from high to low pressure. How do landmasses impact the movement of air and water?

They stop all movement of both air and water.

They speed up the air and water and allow it to pass though.

They change the direction and slow them down.

think this is it

They slow down the air but speed up the water.

pt:2

answering the pictures

9- I don know sorry

15-B

16-A

Explanation:

just trying to help LET ME KNOW IF IT'S WORNG

3 0
3 years ago
Read 2 more answers
Molar mass of calcium sulfate
Nonamiya [84]

Answer:

The molar mass of calcium sulfate is 136.14 g/mole. Calcium has a molar mass of 40.08 g/mole. Sulfur has a molar mass of 32.06 g/mole.

7 0
3 years ago
Describe one experiment that could be carried out to determine which chemical reaction, decomposition, dimerization, or racemiza
mash [69]

Answer:

Thermal decomposition

Explanation:

The thermal decomposition of amino acids could be carried out at different temperatures and at fixed pressure in a reactor. The effect of temperature on products and pathway could be determined by using time as a function. The hydrothermal decomposition of amino acids takes two key paths

1. The delamination of amino acids to produce ammonia and organi acids

2. The decarboxylation to produce amines and carbonic acids.

The thermal decomposition is and effective experiment that could determine the chemical reaction rate and order of reaction, since it's working with time.

8 0
3 years ago
What is the precipitate form of NaOH+FeSO4?
Zanzabum

Answer:

(Fe(OH)2 + Na2SO4

Explanation:

Iron (II) hydroxide precipitate. Iron (II) hydroxide precipitate (Fe(OH)2) formed by adding few drops of a 1M solution of sodium hydroxide (NaOH) to 0.2 M solution ferrous sulfate (FeSO4). The reaction is FeSO4 + NaOH -> Fe(OH)2 + Na2SO4. This is an example of a double replacement reaction. Pure iron (II) hydroxide is white, however even trace amounts of oxygen make it greenish.

4 0
3 years ago
Help me plzz and thank u
Gennadij [26K]

Answer:

the terminator because i did this test

5 0
3 years ago
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