3 years ago

In an ionic compound, the negative and positive ions are held together by __________.

Chemistry

1 answer:

nlexa [21]3 years ago

4 0

Answer:

the third one

Explanation:

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The first stage of aerobic respiration is a series of biochemical reactions called the Calvin cycle.

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Answer:

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Explanation:

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3 years ago

What would the volume of gas be at 150 c if it had a volume of 693 ml at 45 c

marissa [1.9K]

Answer:

$\boxed{\text{922 mL}}$

Explanation:

The pressure is constant, so we can use Charles' Law to calculate the volume.

$\dfrac{V_{1}}{T_{1}} = \dfrac{V_{2}}{T_{2}}$

Data:

V₁ = 693 mL; T₁ = 45 °C

V₂ = ?; T₂ = 150 °C

Calculations:

(a) Convert temperature to kelvins

T₁ = ( 45 + 273.15) = 318.15 K

T₂ = (150 + 273.15) = 423.15 K

(b) Calculate the volume

$\dfrac{ 693}{318.15} = \dfrac{ V_{2}}{423.15}\\\\2.178 = \dfrac{ V_{2}}{423.15}\\\\V_{2} = 2.178 \times 423.15 = \boxed{\textbf{922 mL}}$

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3 years ago

Which particles in atom could demonstrate that opposite charges attract

NeTakaya

the answer is electrons 

7 0

3 years ago

1.50μm2. Convert this to square meters.

mars1129 [50]

Based on the standards of units conversion, to convert from micrometer to meter, we multiply by 10^-6.
Since we there is a square (10^2) to consider, then to convert from micrometer squared to meter squared, we will multiply by (10^-6)^2 as follows:
1.5 μm2 = 1.5 x (10^-6)^2 = 1.5 x 10^-12 meter sqaures

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3 years ago

What is oh in final solution prepared by mixing 20 ml of 0.05 m hcl with 30 mlof .10m barrium oxide

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Answer:

prepared by mixing 20 ml of 0050 m hcl with 30 ml of 010 m ba oh 2 ... No. of milliequivalents of HCl = 2× 0.05 × 1. =1.

Explanation:

is this ?

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3 years ago