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MAXImum [283]
2 years ago
6

How did humans create cow breeds that survive well in cold weather?

Chemistry
1 answer:
tankabanditka [31]2 years ago
8 0

Answer: They identified cows that did well in cold weather and mated them. This is known as selective breeding. All the other answers either cannot work as cross-species breeds generally don't work, or they target cows that survive well in hot weather.

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20 point help now Which of the following would be a clue that a rock is sedimentary?
andrey2020 [161]

Answer:

A

Explanation:

3 0
2 years ago
I don’t understand this at all, if someone could help me please
rewona [7]

Ok,

So what don't you understand. The whole page

6 0
3 years ago
How many ions are present in 75.0g of magnesium sulfate
Ostrovityanka [42]

Answer:

7.5×10²³ ions

Explanation:

Given data:

Mass of magnesium sulfate = 75.0 g

Number of ions = ?

Solution:

Number of moles of magnesium sulfate:

Number of moles = mass/molar mass

Number of moles = 75.0 g/ 120.36 g/mol

Number of moles = 0.623 mol

Magnesium sulfate formula: MgSO₄

Number of moles of ions in 1 mole of MgSO₄ = 2 mol (Mg²⁺ and SO₄²⁻)

Number of moles of ion in 0.623 moles of MgSO₄:

2 mole ×0.623 = 1.246 mol

Number of ions:

1 mole contain 6.022×10²³ ions

1.246 mol × 6.022×10²³ ions / 1mol

7.5×10²³ ions

4 0
3 years ago
Balance the following reaction _ Al + _ Cl, → _ AICI,
Free_Kalibri [48]

Answer:

1 Al + 1 Cl -> 1 AlCl

Explanation:

It is already balanced.

3 0
3 years ago
Round off the following to three significant figures 0.032000000cg
tino4ka555 [31]
<span>0.032000000 cg

Rounding off  ........>

0.0320 cg

The last zero means the measurement is accurate to that digit
</span>
6 0
3 years ago
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