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3 years ago

Helpppppppppppppppppppppppppppppppppppppppp

Chemistry

2 answers:

Pie3 years ago

8 0

Answer:

for the first one. it can get to freezing temperatures there making it difficult for plants to take a root. the larch is one of the only deciduous trees able to survive in the freezing northern taiga.

Explanation:

plants in taiga biomr plants are conifers, trees that have adapted to the cold and have needles instead of leaves. the spruce, pine, fir, and larch are the most common plant species in the taiga. hope that helps

bija089 [108]3 years ago

4 0

Colorful flowers and blueberrie looking ones and the trees

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An ideal gas is in a sealed rigid container. The average kinetic energy of the gas molecules depends most on An ideal gas is in

sergejj [24]

Answer:

The temperature of the gas.

Explanation:

According to the kinetic molecular theory, the molecules of a substance are in constant random motion.

If an ideal gas is contained is a sealed rigid container, the average velocity of the gas molecules is dependent of the temperature of the gas.

Recall that temperature is defined as the average kinetic energy of the molecules of a body.

5 0

2 years ago

A 51.24-g sample of Ba(OH)2 is dissolved in enough water to make 1.20 liters of solution. How many mL of this solution must be d

g100num [7]

Answer:

0.40 L

Explanation:

Calculation of the moles of $Ba(OH)_2$ as:-

Mass = 51.24 g

Molar mass of $Ba(OH)_2$ = 171.34 g/mol

The formula for the calculation of moles is shown below:

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

Thus,

$Moles= \frac{51.24\ g}{171.34\ g/mol}$

$Moles= 0.2991\ mol$

Volume = 1.20 L

The expression for the molarity is:

$Molarity=\frac{Moles\ of\ solute}{Volume\ of\ the\ solution}$

$Molarity=\frac{0.2991\ mol}{1.20\ L}=0.24925\ M$

Thus,

Considering

$Molarity_{working\ solution}\times Volume_{working\ solution}=Molarity_{stock\ solution}\times Volume_{stock\ solution}$

Given that:

$Molarity_{working\ solution}=0.100\ M$

$Volume_{working\ solution}=1\ L$

$Volume_{stock\ solution}=?$

$Molarity_{stock\ solution}=0.24925\ M$

So,

$0.100\ M\times 1\ L=0.24925\ M\times Volume_{stock\ solution}$

$Volume_{stock\ solution}=\frac{0.100\times 1}{0.24925}\ L=0.40\ L$

The volume of 0.24925M stock solution added = 0.40 L

6 0

3 years ago

Please help I will give brainliest

SOVA2 [1]

Answer:

Explanation:

c. - vaccine

b. - immunity

d. - phagocyte

f. - b cell

e. - t cells

a. active immunity

8 0

3 years ago

How many moles of zinc are there in 0.890 g of zinc?

NNADVOKAT [17]

Answer:

There are

4.517

⋅

atoms of Zn in 0.750 mols of Zn.

Explanation:

Since we know that there are

6.022

⋅

atoms in every mole of a substance (Avogadro's Number), there are

6.022

⋅

0.750

atoms of Zn in 0.750 mols of Zn.

4 0

3 years ago

Read 2 more answers

Question 11 point)

MrMuchimi

Answer:

The correct option is C) the moon takes the same time to rotate and revolve.

Explanation:

Scientific experiments have concluded that it takes approximately 23 days for the moon to rotate and also it takes the same duration for the moon to revolve around the Earth. Due to this consistency, the moon appears to be still.

Such synchronization results in the same face of the moon to be directed towards the Earth. Hence, the same craters of the moon will be observed by the scientist every day.

Other options, like option D, is not correct because there will be craters on the other side of the moon too. But as we see the same side of the moon, hence we cannot see the craters present on the other side of the moon.

5 0

3 years ago