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Elina [12.6K]
2 years ago
8

What is the ratio of sodium ions to bromide ions in neutral sodium bromide? 1:1 2:1 2:3 3:2.

SAT
1 answer:
Marianna [84]2 years ago
8 0
1 is the right answer
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In your role as a records management support professional.
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What is the question?? ❓

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Name 3 things you learned about Hitler’s plan from the Crash Course video
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Hitlers plan was to take over Poland, Austria, and nearby countries including Belgium. Hitler wanted a white/ Arian ethnostate, creating what he believed to be the master race. This would include killing those who he thought wouldn't produce that "master race". Those people would range from those with disabilities to those who practiced a different religion. The most prominent being Jewish citizens.

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Which is not driven by energy from the sun? ocean circulation volcanic eruption erosion climate
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The Answer is volcanic eruption.
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2 years ago
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What are the reasons that the Earth heats up unevenly? Check all that apply. * the amount of energy coming from the Sun changes
Dafna1 [17]

Answer:

the Earth is tilted on its axis

the Earth is a sphere

different materials on Earth's surface absorb heat at different rates

Explanation:

The heating and cooling rates of land and water differ. This effects the heating of the earth according to these substances. Since the planet Earth is spherical in shape, the equator heats up more as compared to that of the polar regions. The differences in the seasons is because of the axis on which the Earth is tilted. Because of rotation, the heating and cooling of the Earth's surface differ. These are the reasons that are the reason for the uneven heating of the sun.

4 0
2 years ago
A political candidate has asked his/her assistant to conduct a poll to determine the percentage of people in the community that
Alexxandr [17]

Answer:

The size of the sample needed = 67.65

Explanation:

Given that :

The margin of error = 10% = 0.10

The confidence level = 90% = 0.90

Level of significance = 1 - 0.90 = 0.10

At ∝ = 0.10

Z_{\alpha/2}= Z_{0.10/2} = 1.645

Since the proportion of people that supported him/her is not given, we assumed p = 0.50

The margin of error formula can be expressed as:

M.O.E = Z_{\alpha/2} \times \sqrt{\dfrac{p(1-p)}{n}}

0.10 = 1.645 \times \sqrt{{\dfrac{0.5(1-0.5)}{n}

Squaring both sides; we have:

0.10^2 = 1.645^2 \times {\dfrac{0.5(1-0.5)}{n}

0.01 = 2.706025 \times \dfrac{0.25}{n}

n= 2.706025 \times \dfrac{0.25}{0.01 }

n = 67.65

Therefore, the required sample size = 67.65

4 0
2 years ago
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